Molecules of 2-(2-nitrophenylaminocarbonyl)benzoic acid, C
14H
10N
2O
5, are linked into centrosymmetric
R(8) dimers by a single O—H
O hydrogen bond [H
O = 1.78 Å, O
O = 2.623 (2) Å and O—H
O = 178°] and these dimers are linked into sheets by a single aromatic π–π stacking interaction. The isomeric compound 2-(4-nitrophenylaminocarbonyl)benzoic acid crystallizes in two polymorphic forms. In the orthorhombic form (space group
P2
12
12
1 with
Z′ = 1, crystallized from ethanol), the molecules are linked into sheets of
R(22) rings by a combination of one N—H
O hydrogen bond [H
O = 1.96 Å, N
O = 2.833 (3) Å and N—H
O = 171°] and one O—H
O hydrogen bond [H
O = 1.78 Å, O
O = 2.614 (3) Å and O—H
O = 173°]. In the monoclinic form (space group
P2
1/
n with
Z′ = 2, crystallized from acetone), the molecules are linked by a combination of two N—H
O hydrogen bonds [H
O = 2.09 and 2.16 Å, N
O = 2.873 (4) and 2.902 (3) Å, and N—H
O = 147 and 141°] and two O—H
O hydrogen bonds [H
O = 1.84 and 1.83 Å, O
O = 2.664 (3) and 2.666 (3) Å, and O—H
O = 166 and 174°] into sheets of some complexity. These sheets are linked into a three-dimensional framework by a single C—H
O hydrogen bond [H
O = 2.45 Å, C
O = 3.355 (4) Å and C—H
O = 160°].
Supporting information
CCDC references: 233128; 233129; 233130
Samples of both acids were prepared by heating, under reflux, chloroform solutions containing equimolar mixtures of phthalic anhydride and the appropriate nitroaniline. The reactions were monitored by thin-layer chromatography and when they were complete, the mixtures were cooled and the solvent was removed. Crystals suitable for single-crystal X-ray diffraction were grown by slow evaporation of solutions in ethanol for (I) and (II), and in acetone for (III). Melting point for (I) 426–428 K; for (II) 475–477 K with liberation of water, followed rapidly by re-solidification on formation of N-(4-nitrophenyl)phthalimide and subsequent re-melting at 528–531 K; for (III) 471–473 K with liberation of water, followed rapidly by re-solidification as for (II).
For compounds (I), (II) and (III), the space groups Pbca, P212121 and P21/n, respectively, were uniquely assigned from the systematic absences. All H atoms were located from difference maps and then treated as riding atoms, with distances C—H = 0.95, N—H = 0.88 and O—H = 0.84 Å. In the absence of significant anomalous scattering, the absolute configuration of (II) could not be established. However, this has no chemical significance and the Friedel equivalents were merged. Conventional refinement of (II) led to R = 0.0945 with maximum residual density of 1.632, and examination of the refined structure of (II) using PLATON (Spek, 2003) revealed two voids, each of volume ca 89 Å3, centred at approximately (0, 1/4, 1/2) and (0, 3/4 0). The electron density within these voids could not be interpreted in terms of any sensible model of solvent molecules, and accordingly the reflection data were subjected to the SQUEEZE option in PLATON before the final refinements. This procedure suggested the presence of only 6–7 electrons per unit cell within the voids. Examination of the refined structure of (III) using PLATON also revealed two symmetry-related void spaces per unit cell, each of approximate volume 63 Å3, centred at (0, 1/2, 0) and (1/2, 0, 1/2), although the residual densities from the refinement were very low. Accordingly, a supernumerary O atom was placed near the centre of the void and its site-occupancy factor was refined, giving a value of 0.045 (6), indicative of negligible electron density within the void.
For all compounds, data collection: KappaCCD Server Software (Nonius, 1997); cell refinement: DENZO-SMN (Otwinowski & Minor, 1997); data reduction: DENZO-SMN. Program(s) used to solve structure: SHELXS97 (Sheldrick, 1997) for (I), (II); OSCAIL (McArdle, 2003) and SHELXS97 (Sheldrick, 1997) for (III). Program(s) used to refine structure: SHELXL97 (Sheldrick, 1997) for (I), (II); OSCAIL and SHELXL97 (Sheldrick, 1997) for (III). For all compounds, molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXL97 and PRPKAPPA (Ferguson, 1999).
(I) 2-(2-nitrophenylaminocarbonyl)benzoic acid
top
Crystal data top
C14H10N2O5 | F(000) = 1184 |
Mr = 286.24 | Dx = 1.523 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 2848 reflections |
a = 7.2761 (2) Å | θ = 3.2–27.5° |
b = 14.8881 (5) Å | µ = 0.12 mm−1 |
c = 23.0407 (6) Å | T = 120 K |
V = 2495.94 (13) Å3 | Block, colourless |
Z = 8 | 0.36 × 0.36 × 0.22 mm |
Data collection top
Nonius KappaCCD area-detector diffractometer | 2848 independent reflections |
Radiation source: rotating anode | 1876 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.072 |
ϕ scans, and ω scans with κ offsets | θmax = 27.5°, θmin = 3.2° |
Absorption correction: multi-scan (SORTAV; Blessing, 1995, 1997) | h = −7→9 |
Tmin = 0.955, Tmax = 0.975 | k = −19→19 |
15224 measured reflections | l = −27→29 |
Refinement top
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.049 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.115 | H-atom parameters constrained |
S = 0.98 | w = 1/[σ2(Fo2) + (0.0595P)2] where P = (Fo2 + 2Fc2)/3 |
2848 reflections | (Δ/σ)max = 0.001 |
191 parameters | Δρmax = 0.24 e Å−3 |
0 restraints | Δρmin = −0.29 e Å−3 |
Crystal data top
C14H10N2O5 | V = 2495.94 (13) Å3 |
Mr = 286.24 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 7.2761 (2) Å | µ = 0.12 mm−1 |
b = 14.8881 (5) Å | T = 120 K |
c = 23.0407 (6) Å | 0.36 × 0.36 × 0.22 mm |
Data collection top
Nonius KappaCCD area-detector diffractometer | 2848 independent reflections |
Absorption correction: multi-scan (SORTAV; Blessing, 1995, 1997) | 1876 reflections with I > 2σ(I) |
Tmin = 0.955, Tmax = 0.975 | Rint = 0.072 |
15224 measured reflections | |
Refinement top
R[F2 > 2σ(F2)] = 0.049 | 0 restraints |
wR(F2) = 0.115 | H-atom parameters constrained |
S = 0.98 | Δρmax = 0.24 e Å−3 |
2848 reflections | Δρmin = −0.29 e Å−3 |
191 parameters | |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
N1 | 0.3912 (2) | 0.66212 (10) | 0.68329 (6) | 0.0184 (4) | |
C11 | 0.3660 (2) | 0.73886 (12) | 0.59102 (7) | 0.0178 (4) | |
C12 | 0.4161 (2) | 0.71745 (12) | 0.53395 (7) | 0.0181 (4) | |
C13 | 0.4467 (3) | 0.78557 (13) | 0.49395 (8) | 0.0218 (4) | |
C14 | 0.4313 (3) | 0.87494 (13) | 0.51080 (8) | 0.0251 (5) | |
C15 | 0.3856 (3) | 0.89625 (13) | 0.56740 (8) | 0.0263 (5) | |
C16 | 0.3511 (3) | 0.82848 (13) | 0.60725 (8) | 0.0237 (4) | |
C17 | 0.3014 (3) | 0.66598 (12) | 0.63142 (7) | 0.0188 (4) | |
C18 | 0.4502 (3) | 0.62202 (12) | 0.51827 (7) | 0.0196 (4) | |
O11 | 0.4224 (2) | 0.60281 (9) | 0.46339 (5) | 0.0280 (3) | |
O12 | 0.50338 (18) | 0.56741 (8) | 0.55444 (5) | 0.0260 (3) | |
O17 | 0.17176 (18) | 0.61778 (9) | 0.61845 (5) | 0.0247 (3) | |
C21 | 0.3487 (2) | 0.60095 (12) | 0.72837 (7) | 0.0174 (4) | |
C22 | 0.3474 (2) | 0.62663 (12) | 0.78658 (7) | 0.0178 (4) | |
C23 | 0.3015 (2) | 0.56789 (13) | 0.83106 (8) | 0.0214 (4) | |
C24 | 0.2588 (3) | 0.48019 (12) | 0.81765 (8) | 0.0230 (4) | |
C25 | 0.2599 (3) | 0.45285 (13) | 0.76019 (8) | 0.0231 (4) | |
C26 | 0.3027 (2) | 0.51244 (12) | 0.71581 (8) | 0.0215 (4) | |
N22 | 0.3928 (2) | 0.71871 (10) | 0.80312 (7) | 0.0216 (4) | |
O21 | 0.3086 (2) | 0.75267 (9) | 0.84359 (6) | 0.0332 (4) | |
O22 | 0.51459 (18) | 0.75869 (8) | 0.77559 (5) | 0.0249 (3) | |
H1 | 0.4708 | 0.7052 | 0.6904 | 0.022* | |
H13 | 0.4781 | 0.7711 | 0.4550 | 0.026* | |
H14 | 0.4523 | 0.9215 | 0.4834 | 0.030* | |
H15 | 0.3779 | 0.9574 | 0.5790 | 0.032* | |
H16 | 0.3171 | 0.8434 | 0.6459 | 0.028* | |
H11 | 0.4481 | 0.5486 | 0.4574 | 0.042* | |
H23 | 0.2995 | 0.5879 | 0.8702 | 0.026* | |
H24 | 0.2288 | 0.4388 | 0.8476 | 0.028* | |
H25 | 0.2309 | 0.3923 | 0.7510 | 0.028* | |
H26 | 0.3005 | 0.4926 | 0.6766 | 0.026* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
N1 | 0.0210 (8) | 0.0171 (8) | 0.0171 (8) | −0.0037 (7) | 0.0001 (6) | 0.0010 (6) |
O17 | 0.0268 (8) | 0.0262 (8) | 0.0212 (7) | −0.0056 (6) | −0.0025 (5) | 0.0024 (6) |
C11 | 0.0180 (10) | 0.0186 (10) | 0.0168 (9) | 0.0000 (8) | −0.0011 (7) | 0.0013 (7) |
C12 | 0.0186 (10) | 0.0179 (9) | 0.0179 (9) | 0.0002 (8) | −0.0021 (7) | 0.0003 (7) |
C13 | 0.0248 (11) | 0.0240 (11) | 0.0165 (9) | 0.0005 (9) | 0.0012 (7) | 0.0020 (7) |
C14 | 0.0300 (12) | 0.0207 (11) | 0.0247 (10) | −0.0029 (9) | 0.0004 (8) | 0.0069 (8) |
C15 | 0.0342 (12) | 0.0162 (10) | 0.0285 (11) | 0.0010 (9) | −0.0009 (8) | 0.0002 (8) |
C16 | 0.0308 (11) | 0.0194 (10) | 0.0209 (10) | 0.0009 (8) | 0.0026 (8) | −0.0021 (8) |
C17 | 0.0219 (11) | 0.0175 (10) | 0.0168 (9) | 0.0023 (8) | 0.0020 (7) | −0.0028 (7) |
C18 | 0.0198 (10) | 0.0221 (11) | 0.0170 (9) | −0.0002 (8) | 0.0020 (7) | 0.0000 (8) |
O11 | 0.0463 (9) | 0.0214 (7) | 0.0165 (7) | 0.0077 (7) | −0.0026 (6) | −0.0047 (5) |
O12 | 0.0393 (9) | 0.0208 (7) | 0.0179 (7) | 0.0061 (6) | −0.0005 (6) | −0.0004 (5) |
O17 | 0.0268 (8) | 0.0262 (8) | 0.0212 (7) | −0.0056 (6) | −0.0025 (5) | 0.0024 (6) |
C21 | 0.0157 (9) | 0.0173 (9) | 0.0190 (9) | 0.0025 (8) | 0.0010 (7) | 0.0026 (7) |
C22 | 0.0168 (10) | 0.0146 (9) | 0.0221 (9) | 0.0023 (7) | −0.0011 (7) | −0.0008 (7) |
C23 | 0.0217 (11) | 0.0242 (11) | 0.0183 (9) | 0.0023 (8) | 0.0008 (7) | 0.0021 (8) |
C24 | 0.0238 (10) | 0.0212 (10) | 0.0239 (10) | 0.0002 (9) | 0.0009 (8) | 0.0072 (8) |
C25 | 0.0235 (11) | 0.0162 (9) | 0.0297 (11) | −0.0012 (8) | −0.0008 (8) | 0.0014 (8) |
C26 | 0.0235 (11) | 0.0200 (10) | 0.0210 (9) | 0.0020 (8) | −0.0007 (8) | −0.0017 (8) |
N22 | 0.0254 (9) | 0.0196 (8) | 0.0197 (8) | 0.0017 (7) | −0.0035 (7) | 0.0013 (7) |
O21 | 0.0483 (10) | 0.0249 (8) | 0.0265 (8) | 0.0018 (7) | 0.0097 (6) | −0.0059 (6) |
O22 | 0.0298 (8) | 0.0198 (7) | 0.0250 (7) | −0.0051 (6) | −0.0005 (6) | 0.0028 (5) |
Geometric parameters (Å, º) top
N1—C17 | 1.363 (2) | C18—O11 | 1.312 (2) |
N1—C21 | 1.416 (2) | C18—O12 | 1.227 (2) |
N1—H1 | 0.88 | O11—H11 | 0.84 |
C17—O17 | 1.222 (2) | C21—C26 | 1.390 (3) |
C17—C11 | 1.505 (2) | C21—C22 | 1.395 (2) |
C11—C16 | 1.390 (3) | C22—C23 | 1.388 (2) |
C11—C12 | 1.401 (2) | C22—N22 | 1.461 (2) |
C12—C13 | 1.388 (3) | C23—C24 | 1.377 (3) |
C12—C18 | 1.487 (2) | C23—H23 | 0.95 |
C13—C14 | 1.390 (3) | C24—C25 | 1.385 (3) |
C13—H13 | 0.95 | C24—H24 | 0.95 |
C14—C15 | 1.383 (3) | C25—C26 | 1.389 (3) |
C14—H14 | 0.95 | C25—H25 | 0.95 |
C15—C16 | 1.387 (3) | C26—H26 | 0.95 |
C15—H15 | 0.95 | N22—O21 | 1.2248 (19) |
C16—H16 | 0.95 | N22—O22 | 1.2417 (19) |
| | | |
C17—N1—C21 | 124.45 (15) | O12—C18—C12 | 121.38 (15) |
C17—N1—H1 | 116.7 | O11—C18—C12 | 114.63 (15) |
C21—N1—H1 | 118.4 | C18—O11—H11 | 109.5 |
O17—C17—N1 | 124.01 (16) | C26—C21—C22 | 117.30 (16) |
O17—C17—C11 | 120.89 (16) | C26—C21—N1 | 120.64 (15) |
N1—C17—C11 | 115.01 (16) | C22—C21—N1 | 122.05 (16) |
C16—C11—C12 | 119.41 (16) | C23—C22—C21 | 122.61 (17) |
C16—C11—C17 | 120.08 (15) | C23—C22—N22 | 116.94 (15) |
C12—C11—C17 | 119.85 (16) | C21—C22—N22 | 120.44 (15) |
C13—C12—C11 | 119.90 (17) | C24—C23—C22 | 119.07 (17) |
C13—C12—C18 | 120.67 (16) | C24—C23—H23 | 120.5 |
C11—C12—C18 | 119.26 (15) | C22—C23—H23 | 120.5 |
C12—C13—C14 | 120.06 (17) | C23—C24—C25 | 119.46 (17) |
C12—C13—H13 | 120.0 | C23—C24—H24 | 120.3 |
C14—C13—H13 | 120.0 | C25—C24—H24 | 120.3 |
C15—C14—C13 | 120.14 (17) | C24—C25—C26 | 121.14 (18) |
C15—C14—H14 | 119.9 | C24—C25—H25 | 119.4 |
C13—C14—H14 | 119.9 | C26—C25—H25 | 119.4 |
C14—C15—C16 | 120.07 (18) | C25—C26—C21 | 120.40 (17) |
C14—C15—H15 | 120.0 | C25—C26—H26 | 119.8 |
C16—C15—H15 | 120.0 | C21—C26—H26 | 119.8 |
C15—C16—C11 | 120.39 (17) | O21—N22—O22 | 123.22 (15) |
C15—C16—H16 | 119.8 | O21—N22—C22 | 118.22 (15) |
C11—C16—H16 | 119.8 | O22—N22—C22 | 118.56 (14) |
O12—C18—O11 | 123.97 (16) | | |
| | | |
C12—C11—C17—N1 | 127.5 (2) | C17—C11—C16—C15 | −170.79 (18) |
C11—C17—N1—C21 | 177.8 (2) | C13—C12—C18—O12 | 147.44 (19) |
C17—N1—C21—C22 | −139.1 (2) | C11—C12—C18—O12 | −27.8 (3) |
C11—C12—C18—O11 | 153.6 (2) | C13—C12—C18—O11 | −31.2 (2) |
C21—C22—N22—O21 | 143.3 (2) | C17—N1—C21—C26 | 39.6 (3) |
C21—N1—C17—O17 | 1.2 (3) | C26—C21—C22—C23 | −0.4 (3) |
O17—C17—C11—C16 | 114.8 (2) | N1—C21—C22—C23 | 178.34 (17) |
N1—C17—C11—C16 | −61.8 (2) | C26—C21—C22—N22 | −179.53 (16) |
O17—C17—C11—C12 | −55.9 (2) | N1—C21—C22—N22 | −0.8 (3) |
C16—C11—C12—C13 | −1.3 (3) | C21—C22—C23—C24 | 1.3 (3) |
C17—C11—C12—C13 | 169.45 (17) | N22—C22—C23—C24 | −179.56 (16) |
C16—C11—C12—C18 | 173.92 (17) | C22—C23—C24—C25 | −1.0 (3) |
C17—C11—C12—C18 | −15.3 (3) | C23—C24—C25—C26 | −0.2 (3) |
C11—C12—C13—C14 | 1.4 (3) | C24—C25—C26—C21 | 1.1 (3) |
C18—C12—C13—C14 | −173.82 (18) | C22—C21—C26—C25 | −0.8 (3) |
C12—C13—C14—C15 | 0.0 (3) | N1—C21—C26—C25 | −179.56 (16) |
C13—C14—C15—C16 | −1.4 (3) | C23—C22—N22—O21 | −35.9 (2) |
C14—C15—C16—C11 | 1.4 (3) | C23—C22—N22—O22 | 144.11 (16) |
C12—C11—C16—C15 | 0.0 (3) | C21—C22—N22—O22 | −36.7 (2) |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O22 | 0.88 | 2.14 | 2.719 (2) | 123 |
O11—H11···O12i | 0.84 | 1.78 | 2.623 (2) | 178 |
Symmetry code: (i) −x+1, −y+1, −z+1. |
(II) 2-(4-nitrophenylaminocarbonyl)benzoic acid
top
Crystal data top
C14H10N2O5 | F(000) = 592 |
Mr = 286.24 | Dx = 1.380 Mg m−3 |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 1820 reflections |
a = 3.9188 (2) Å | θ = 3.2–27.5° |
b = 12.6896 (6) Å | µ = 0.11 mm−1 |
c = 27.7029 (16) Å | T = 120 K |
V = 1377.61 (12) Å3 | Needle, colourless |
Z = 4 | 0.25 × 0.08 × 0.04 mm |
Data collection top
Nonius KappaCCD area-detector diffractometer | 1820 independent reflections |
Radiation source: rotating anode | 1237 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.052 |
ϕ scans, and ω scans with κ offsets | θmax = 27.5°, θmin = 3.2° |
Absorption correction: multi-scan (SORTAV; Blessing, 1995, 1997) | h = −5→5 |
Tmin = 0.969, Tmax = 0.996 | k = −16→16 |
4875 measured reflections | l = −35→35 |
Refinement top
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.055 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.123 | H-atom parameters constrained |
S = 1.09 | w = 1/[σ2(Fo2) + (0.0583P)2] where P = (Fo2 + 2Fc2)/3 |
1820 reflections | (Δ/σ)max < 0.001 |
191 parameters | Δρmax = 0.21 e Å−3 |
1 restraint | Δρmin = −0.21 e Å−3 |
Crystal data top
C14H10N2O5 | V = 1377.61 (12) Å3 |
Mr = 286.24 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 3.9188 (2) Å | µ = 0.11 mm−1 |
b = 12.6896 (6) Å | T = 120 K |
c = 27.7029 (16) Å | 0.25 × 0.08 × 0.04 mm |
Data collection top
Nonius KappaCCD area-detector diffractometer | 1820 independent reflections |
Absorption correction: multi-scan (SORTAV; Blessing, 1995, 1997) | 1237 reflections with I > 2σ(I) |
Tmin = 0.969, Tmax = 0.996 | Rint = 0.052 |
4875 measured reflections | |
Refinement top
R[F2 > 2σ(F2)] = 0.055 | 1 restraint |
wR(F2) = 0.123 | H-atom parameters constrained |
S = 1.09 | Δρmax = 0.21 e Å−3 |
1820 reflections | Δρmin = −0.21 e Å−3 |
191 parameters | |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
N1 | 0.4342 (8) | 0.5589 (2) | 0.70323 (8) | 0.0303 (7) | |
C11 | 0.5423 (9) | 0.5098 (2) | 0.78643 (10) | 0.0269 (8) | |
C12 | 0.6198 (10) | 0.6014 (2) | 0.81186 (10) | 0.0270 (8) | |
C13 | 0.5374 (10) | 0.6055 (3) | 0.86087 (11) | 0.0348 (9) | |
C14 | 0.3895 (10) | 0.5198 (3) | 0.88373 (11) | 0.0394 (9) | |
C15 | 0.3207 (11) | 0.4297 (3) | 0.85830 (11) | 0.0407 (9) | |
C16 | 0.3992 (10) | 0.4238 (2) | 0.80935 (11) | 0.0335 (8) | |
C17 | 0.6123 (10) | 0.4948 (3) | 0.73279 (11) | 0.0320 (9) | |
C18 | 0.8051 (9) | 0.6899 (2) | 0.78949 (10) | 0.0270 (8) | |
O11 | 0.8145 (7) | 0.77547 (16) | 0.81683 (7) | 0.0388 (7) | |
O12 | 0.9420 (6) | 0.68670 (16) | 0.74998 (7) | 0.0303 (6) | |
O17 | 0.8074 (7) | 0.42565 (17) | 0.71936 (7) | 0.0408 (6) | |
C21 | 0.4494 (9) | 0.5637 (2) | 0.65252 (10) | 0.0294 (8) | |
C22 | 0.5861 (10) | 0.4840 (3) | 0.62427 (11) | 0.0348 (9) | |
C23 | 0.5869 (10) | 0.4974 (3) | 0.57478 (11) | 0.0408 (10) | |
C24 | 0.4558 (10) | 0.5856 (3) | 0.55435 (11) | 0.0380 (9) | |
C25 | 0.3161 (10) | 0.6659 (3) | 0.58184 (10) | 0.0384 (9) | |
C26 | 0.3130 (10) | 0.6534 (3) | 0.63148 (10) | 0.0326 (8) | |
N24 | 0.4617 (9) | 0.5952 (3) | 0.50187 (10) | 0.0490 (9) | |
O41 | 0.2980 (9) | 0.6661 (3) | 0.48315 (8) | 0.0670 (9) | |
O42 | 0.6302 (9) | 0.5322 (3) | 0.47881 (9) | 0.0713 (10) | |
H1 | 0.3011 | 0.6027 | 0.7191 | 0.036* | |
H13 | 0.5833 | 0.6678 | 0.8787 | 0.042* | |
H14 | 0.3357 | 0.5236 | 0.9171 | 0.047* | |
H15 | 0.2191 | 0.3711 | 0.8741 | 0.049* | |
H16 | 0.3546 | 0.3609 | 0.7918 | 0.040* | |
H11 | 0.9303 | 0.8223 | 0.8030 | 0.058* | |
H22 | 0.6768 | 0.4220 | 0.6385 | 0.042* | |
H23 | 0.6807 | 0.4440 | 0.5548 | 0.049* | |
H25 | 0.2254 | 0.7274 | 0.5671 | 0.046* | |
H26 | 0.2166 | 0.7068 | 0.6513 | 0.039* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
N1 | 0.0354 (17) | 0.0342 (16) | 0.0213 (11) | 0.0063 (14) | 0.0026 (12) | 0.0005 (11) |
C17 | 0.031 (2) | 0.033 (2) | 0.0321 (16) | −0.0053 (19) | −0.0054 (16) | −0.0002 (15) |
O17 | 0.0467 (17) | 0.0321 (13) | 0.0436 (13) | 0.0134 (14) | −0.0009 (12) | −0.0053 (11) |
C11 | 0.029 (2) | 0.0275 (18) | 0.0248 (14) | 0.0009 (16) | −0.0014 (14) | 0.0036 (13) |
C12 | 0.028 (2) | 0.0254 (17) | 0.0273 (15) | 0.0033 (16) | −0.0022 (15) | 0.0057 (13) |
C13 | 0.038 (2) | 0.040 (2) | 0.0263 (16) | −0.0037 (18) | −0.0016 (15) | 0.0015 (15) |
C14 | 0.044 (3) | 0.049 (2) | 0.0248 (14) | −0.003 (2) | −0.0025 (17) | 0.0062 (15) |
C15 | 0.041 (2) | 0.041 (2) | 0.0394 (18) | −0.010 (2) | −0.0057 (19) | 0.0194 (17) |
C16 | 0.037 (2) | 0.0275 (18) | 0.0359 (17) | −0.0024 (18) | −0.0105 (17) | 0.0078 (14) |
C18 | 0.029 (2) | 0.0282 (17) | 0.0241 (14) | 0.0044 (16) | −0.0028 (15) | 0.0010 (14) |
O11 | 0.0563 (18) | 0.0265 (12) | 0.0335 (11) | −0.0076 (13) | 0.0133 (12) | −0.0053 (10) |
O12 | 0.0360 (15) | 0.0309 (13) | 0.0240 (10) | 0.0023 (11) | 0.0071 (10) | 0.0013 (9) |
C21 | 0.027 (2) | 0.037 (2) | 0.0247 (14) | −0.0039 (18) | −0.0024 (15) | −0.0021 (14) |
C22 | 0.039 (2) | 0.0323 (19) | 0.0332 (16) | 0.0051 (18) | 0.0027 (18) | −0.0046 (14) |
C23 | 0.040 (2) | 0.052 (2) | 0.0300 (16) | 0.001 (2) | 0.0024 (18) | −0.0166 (16) |
C24 | 0.036 (2) | 0.058 (2) | 0.0199 (14) | −0.011 (2) | −0.0019 (15) | −0.0013 (16) |
C25 | 0.043 (2) | 0.047 (2) | 0.0253 (14) | −0.002 (2) | −0.0010 (17) | 0.0041 (15) |
C26 | 0.037 (2) | 0.0377 (19) | 0.0235 (14) | −0.0017 (19) | 0.0006 (16) | −0.0034 (13) |
N24 | 0.043 (2) | 0.078 (3) | 0.0253 (15) | −0.013 (2) | −0.0015 (15) | −0.0057 (16) |
O41 | 0.087 (2) | 0.089 (2) | 0.0251 (11) | −0.013 (2) | −0.0089 (15) | 0.0074 (14) |
O42 | 0.064 (2) | 0.120 (3) | 0.0302 (12) | 0.004 (2) | 0.0058 (15) | −0.0213 (15) |
Geometric parameters (Å, º) top
N1—C17 | 1.349 (4) | C18—O11 | 1.324 (3) |
N1—C21 | 1.408 (4) | C18—O12 | 1.219 (3) |
N1—H1 | 0.88 | O11—H11 | 0.84 |
C17—O17 | 1.222 (4) | C21—C22 | 1.386 (4) |
C17—C11 | 1.523 (4) | C21—C26 | 1.386 (4) |
C11—C16 | 1.382 (4) | C22—C23 | 1.381 (4) |
C11—C12 | 1.393 (4) | C22—H22 | 0.95 |
C12—C13 | 1.397 (4) | C23—C24 | 1.355 (5) |
C12—C18 | 1.474 (4) | C23—H23 | 0.95 |
C13—C14 | 1.386 (5) | C24—C25 | 1.385 (5) |
C13—H13 | 0.95 | C24—N24 | 1.459 (4) |
C14—C15 | 1.370 (4) | C25—C26 | 1.384 (4) |
C14—H14 | 0.95 | C25—H25 | 0.95 |
C15—C16 | 1.393 (5) | C26—H26 | 0.95 |
C15—H15 | 0.95 | N24—O42 | 1.218 (4) |
C16—H16 | 0.95 | N24—O41 | 1.220 (4) |
| | | |
C17—N1—C21 | 127.6 (3) | O12—C18—C12 | 124.6 (3) |
C17—N1—H1 | 112.6 | O11—C18—C12 | 113.4 (2) |
C21—N1—H1 | 119.8 | C18—O11—H11 | 109.5 |
O17—C17—N1 | 124.9 (3) | C22—C21—C26 | 120.7 (3) |
O17—C17—C11 | 120.0 (3) | C22—C21—N1 | 123.3 (3) |
N1—C17—C11 | 115.1 (3) | C26—C21—N1 | 116.0 (3) |
C16—C11—C12 | 121.0 (3) | C23—C22—C21 | 118.1 (3) |
C16—C11—C17 | 115.0 (3) | C23—C22—H22 | 120.9 |
C12—C11—C17 | 124.0 (3) | C21—C22—H22 | 120.9 |
C11—C12—C13 | 118.2 (3) | C24—C23—C22 | 121.0 (3) |
C11—C12—C18 | 122.1 (3) | C24—C23—H23 | 119.5 |
C13—C12—C18 | 119.6 (3) | C22—C23—H23 | 119.5 |
C14—C13—C12 | 120.8 (3) | C23—C24—C25 | 121.8 (3) |
C14—C13—H13 | 119.6 | C23—C24—N24 | 118.6 (3) |
C12—C13—H13 | 119.6 | C25—C24—N24 | 119.5 (3) |
C15—C14—C13 | 120.2 (3) | C26—C25—C24 | 117.8 (3) |
C15—C14—H14 | 119.9 | C26—C25—H25 | 121.1 |
C13—C14—H14 | 119.9 | C24—C25—H25 | 121.1 |
C14—C15—C16 | 120.2 (3) | C25—C26—C21 | 120.5 (3) |
C14—C15—H15 | 119.9 | C25—C26—H26 | 119.7 |
C16—C15—H15 | 119.9 | C21—C26—H26 | 119.7 |
C11—C16—C15 | 119.6 (3) | O42—N24—O41 | 123.1 (3) |
C11—C16—H16 | 120.2 | O42—N24—C24 | 118.4 (4) |
C15—C16—H16 | 120.2 | O41—N24—C24 | 118.5 (3) |
O12—C18—O11 | 121.9 (3) | | |
| | | |
C12—C11—C17—N1 | −64.8 (5) | C11—C12—C18—O11 | 171.2 (3) |
C11—C17—N1—C21 | 179.1 (3) | C23—C24—N24—O41 | 168.8 (4) |
C17—N1—C21—C22 | 17.7 (6) | | |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O12i | 0.88 | 1.96 | 2.833 (3) | 171 |
O11—H11···O17ii | 0.84 | 1.78 | 2.614 (3) | 173 |
Symmetry codes: (i) x−1, y, z; (ii) −x+2, y+1/2, −z+3/2. |
(III) 2-(4-nitrophenylaminocarbonyl)benzoic acid
top
Crystal data top
C14H10N2O5 | F(000) = 1184 |
Mr = 286.24 | Dx = 1.474 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 5503 reflections |
a = 10.2098 (10) Å | θ = 3.0–27.4° |
b = 9.3749 (8) Å | µ = 0.11 mm−1 |
c = 27.409 (2) Å | T = 120 K |
β = 100.578 (4)° | Plate, colourless |
V = 2578.9 (4) Å3 | 0.22 × 0.18 × 0.10 mm |
Z = 8 | |
Data collection top
Nonius KappaCCD area-detector diffractometer | 5503 independent reflections |
Radiation source: rotating anode | 2662 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.095 |
ϕ scans, and ω scans with κ offsets | θmax = 27.4°, θmin = 3.0° |
Absorption correction: multi-scan (SORTAV; Blessing, 1995, 1997) | h = −11→12 |
Tmin = 0.965, Tmax = 0.989 | k = −12→11 |
19240 measured reflections | l = −35→35 |
Refinement top
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.069 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.166 | H-atom parameters constrained |
S = 0.99 | w = 1/[σ2(Fo2) + (0.0716P)2] where P = (Fo2 + 2Fc2)/3 |
5503 reflections | (Δ/σ)max < 0.001 |
381 parameters | Δρmax = 0.30 e Å−3 |
0 restraints | Δρmin = −0.26 e Å−3 |
Crystal data top
C14H10N2O5 | V = 2578.9 (4) Å3 |
Mr = 286.24 | Z = 8 |
Monoclinic, P21/n | Mo Kα radiation |
a = 10.2098 (10) Å | µ = 0.11 mm−1 |
b = 9.3749 (8) Å | T = 120 K |
c = 27.409 (2) Å | 0.22 × 0.18 × 0.10 mm |
β = 100.578 (4)° | |
Data collection top
Nonius KappaCCD area-detector diffractometer | 5503 independent reflections |
Absorption correction: multi-scan (SORTAV; Blessing, 1995, 1997) | 2662 reflections with I > 2σ(I) |
Tmin = 0.965, Tmax = 0.989 | Rint = 0.095 |
19240 measured reflections | |
Refinement top
R[F2 > 2σ(F2)] = 0.069 | 0 restraints |
wR(F2) = 0.166 | H-atom parameters constrained |
S = 0.99 | Δρmax = 0.30 e Å−3 |
5503 reflections | Δρmin = −0.26 e Å−3 |
381 parameters | |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
C11A | 0.2819 (3) | 0.0940 (3) | 0.30113 (9) | 0.0268 (7) | |
C12A | 0.3602 (3) | 0.2060 (3) | 0.32469 (9) | 0.0239 (7) | |
C13A | 0.3627 (3) | 0.2318 (3) | 0.37481 (10) | 0.0288 (8) | |
C14A | 0.2898 (3) | 0.1477 (3) | 0.40118 (10) | 0.0346 (8) | |
C15A | 0.2168 (3) | 0.0352 (3) | 0.37854 (10) | 0.0366 (9) | |
C16A | 0.2114 (3) | 0.0083 (3) | 0.32880 (10) | 0.0307 (8) | |
C18A | 0.4469 (3) | 0.2866 (3) | 0.29669 (10) | 0.0273 (7) | |
O11A | 0.5270 (2) | 0.3773 (2) | 0.32449 (7) | 0.0356 (6) | |
O12A | 0.4477 (2) | 0.2687 (2) | 0.25270 (6) | 0.0298 (5) | |
C17A | 0.2761 (3) | 0.0595 (3) | 0.24733 (10) | 0.0272 (7) | |
O17A | 0.3441 (2) | −0.0374 (2) | 0.23465 (6) | 0.0335 (6) | |
N1A | 0.1865 (3) | 0.1368 (2) | 0.21587 (8) | 0.0281 (6) | |
C21A | 0.1682 (3) | 0.1401 (3) | 0.16406 (10) | 0.0267 (8) | |
C22A | 0.2701 (3) | 0.1091 (3) | 0.13835 (10) | 0.0310 (8) | |
C23A | 0.2456 (4) | 0.1155 (3) | 0.08729 (11) | 0.0402 (9) | |
C24A | 0.1199 (4) | 0.1527 (3) | 0.06263 (11) | 0.0415 (10) | |
C25A | 0.0178 (4) | 0.1843 (3) | 0.08723 (10) | 0.0386 (9) | |
C26A | 0.0425 (3) | 0.1794 (3) | 0.13827 (10) | 0.0329 (8) | |
N24A | 0.0929 (5) | 0.1578 (3) | 0.00837 (11) | 0.0626 (12) | |
O41A | 0.1897 (4) | 0.1542 (3) | −0.01303 (9) | 0.0869 (12) | |
O42A | −0.0234 (4) | 0.1652 (3) | −0.01317 (9) | 0.0812 (12) | |
C11B | 0.7592 (3) | 0.5837 (3) | 0.20613 (10) | 0.0252 (7) | |
C12B | 0.6580 (3) | 0.6660 (3) | 0.17796 (9) | 0.0250 (7) | |
C13B | 0.6527 (3) | 0.6808 (3) | 0.12706 (10) | 0.0283 (8) | |
C14B | 0.7479 (3) | 0.6161 (3) | 0.10455 (10) | 0.0303 (8) | |
C15B | 0.8471 (3) | 0.5355 (3) | 0.13237 (10) | 0.0305 (8) | |
C16B | 0.8537 (3) | 0.5177 (3) | 0.18256 (10) | 0.0290 (8) | |
C18B | 0.5577 (3) | 0.7361 (3) | 0.20288 (10) | 0.0265 (7) | |
O11B | 0.4810 (2) | 0.8287 (2) | 0.17438 (6) | 0.0335 (6) | |
O12B | 0.5477 (2) | 0.7108 (2) | 0.24543 (7) | 0.0306 (5) | |
C17B | 0.7660 (3) | 0.5572 (3) | 0.26046 (10) | 0.0257 (7) | |
O17B | 0.7182 (2) | 0.4479 (2) | 0.27463 (6) | 0.0308 (5) | |
N1B | 0.8348 (3) | 0.6565 (2) | 0.29067 (8) | 0.0278 (6) | |
C21B | 0.8544 (3) | 0.6668 (3) | 0.34262 (9) | 0.0243 (7) | |
C22B | 0.8215 (3) | 0.5588 (3) | 0.37331 (10) | 0.0282 (7) | |
C23B | 0.8455 (3) | 0.5783 (3) | 0.42414 (10) | 0.0322 (8) | |
C24B | 0.9009 (3) | 0.7043 (3) | 0.44392 (10) | 0.0327 (8) | |
C25B | 0.9350 (3) | 0.8112 (3) | 0.41438 (10) | 0.0314 (8) | |
C26B | 0.9125 (3) | 0.7919 (3) | 0.36378 (10) | 0.0287 (8) | |
N24B | 0.9234 (3) | 0.7250 (3) | 0.49769 (9) | 0.0428 (8) | |
O41B | 0.9035 (3) | 0.6260 (3) | 0.52431 (8) | 0.0567 (8) | |
O42B | 0.9610 (3) | 0.8420 (3) | 0.51405 (8) | 0.0732 (10) | |
H13A | 0.4151 | 0.3079 | 0.3909 | 0.035* | |
H14A | 0.2899 | 0.1677 | 0.4352 | 0.042* | |
H15A | 0.1697 | −0.0247 | 0.3973 | 0.044* | |
H16A | 0.1594 | −0.0689 | 0.3133 | 0.037* | |
H11A | 0.5804 | 0.4124 | 0.3078 | 0.043* | |
H1A | 0.1332 | 0.1916 | 0.2295 | 0.034* | |
H22A | 0.3560 | 0.0837 | 0.1559 | 0.037* | |
H23A | 0.3143 | 0.0946 | 0.0693 | 0.048* | |
H25A | −0.0680 | 0.2089 | 0.0694 | 0.046* | |
H26A | −0.0262 | 0.2029 | 0.1560 | 0.039* | |
H13B | 0.5835 | 0.7353 | 0.1078 | 0.034* | |
H14B | 0.7448 | 0.6274 | 0.0699 | 0.036* | |
H15B | 0.9121 | 0.4914 | 0.1166 | 0.037* | |
H16B | 0.9222 | 0.4608 | 0.2012 | 0.035* | |
H11B | 0.4355 | 0.8748 | 0.1916 | 0.040* | |
H1B | 0.8725 | 0.7240 | 0.2757 | 0.033* | |
H22B | 0.7829 | 0.4724 | 0.3593 | 0.034* | |
H23B | 0.8238 | 0.5053 | 0.4453 | 0.039* | |
H25B | 0.9736 | 0.8972 | 0.4287 | 0.038* | |
H26B | 0.9368 | 0.8648 | 0.3430 | 0.034* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
C11A | 0.022 (2) | 0.0279 (18) | 0.0317 (15) | 0.0041 (15) | 0.0081 (13) | −0.0014 (13) |
C12A | 0.018 (2) | 0.0224 (16) | 0.0325 (15) | 0.0055 (14) | 0.0090 (13) | 0.0011 (12) |
C13A | 0.026 (2) | 0.0265 (17) | 0.0346 (16) | −0.0005 (15) | 0.0067 (14) | −0.0017 (13) |
C14A | 0.033 (3) | 0.044 (2) | 0.0294 (15) | −0.0033 (17) | 0.0121 (14) | −0.0026 (14) |
C15A | 0.036 (3) | 0.040 (2) | 0.0357 (17) | −0.0069 (17) | 0.0128 (15) | 0.0042 (14) |
C16A | 0.025 (2) | 0.0298 (18) | 0.0372 (17) | −0.0056 (15) | 0.0056 (14) | −0.0018 (13) |
C18A | 0.025 (2) | 0.0253 (17) | 0.0321 (16) | 0.0014 (15) | 0.0056 (13) | −0.0003 (13) |
O11A | 0.0370 (18) | 0.0333 (13) | 0.0406 (11) | −0.0149 (11) | 0.0180 (10) | −0.0067 (10) |
O12A | 0.0240 (16) | 0.0362 (13) | 0.0304 (11) | 0.0018 (10) | 0.0084 (9) | 0.0002 (9) |
C17A | 0.021 (2) | 0.0297 (18) | 0.0317 (16) | −0.0039 (15) | 0.0068 (14) | −0.0020 (13) |
O17A | 0.0324 (17) | 0.0328 (13) | 0.0374 (11) | 0.0062 (11) | 0.0118 (10) | −0.0026 (9) |
N1A | 0.0210 (18) | 0.0355 (15) | 0.0285 (12) | 0.0050 (13) | 0.0069 (11) | −0.0033 (11) |
C21A | 0.026 (2) | 0.0245 (17) | 0.0309 (15) | −0.0011 (14) | 0.0078 (14) | −0.0006 (12) |
C22A | 0.030 (2) | 0.0252 (17) | 0.0401 (17) | 0.0014 (15) | 0.0125 (15) | 0.0001 (13) |
C23A | 0.055 (3) | 0.0288 (19) | 0.0430 (18) | 0.0071 (18) | 0.0252 (18) | 0.0031 (14) |
C24A | 0.069 (3) | 0.0309 (19) | 0.0270 (16) | 0.0053 (19) | 0.0147 (18) | 0.0022 (13) |
C25A | 0.040 (3) | 0.039 (2) | 0.0344 (18) | −0.0013 (17) | −0.0007 (15) | 0.0037 (14) |
C26A | 0.025 (2) | 0.0370 (19) | 0.0373 (17) | −0.0001 (16) | 0.0078 (14) | −0.0009 (14) |
N24A | 0.105 (4) | 0.046 (2) | 0.0367 (19) | 0.026 (2) | 0.013 (2) | 0.0038 (14) |
O41A | 0.147 (4) | 0.078 (2) | 0.0493 (16) | 0.046 (2) | 0.0538 (19) | 0.0176 (14) |
O42A | 0.122 (4) | 0.074 (2) | 0.0383 (15) | 0.029 (2) | −0.0089 (17) | 0.0024 (13) |
C11B | 0.021 (2) | 0.0224 (16) | 0.0321 (15) | −0.0033 (14) | 0.0061 (13) | −0.0019 (12) |
C12B | 0.020 (2) | 0.0242 (17) | 0.0314 (15) | −0.0017 (14) | 0.0078 (13) | −0.0018 (12) |
C13B | 0.031 (2) | 0.0231 (16) | 0.0313 (16) | 0.0000 (15) | 0.0069 (14) | −0.0024 (12) |
C14B | 0.036 (3) | 0.0293 (18) | 0.0264 (14) | −0.0013 (16) | 0.0094 (14) | −0.0019 (13) |
C15B | 0.027 (2) | 0.0301 (18) | 0.0376 (17) | −0.0006 (16) | 0.0147 (14) | −0.0047 (13) |
C16B | 0.021 (2) | 0.0297 (18) | 0.0358 (16) | −0.0017 (15) | 0.0049 (13) | −0.0017 (13) |
C18B | 0.023 (2) | 0.0245 (17) | 0.0316 (16) | −0.0022 (15) | 0.0046 (13) | 0.0000 (13) |
O11B | 0.0338 (17) | 0.0349 (13) | 0.0341 (11) | 0.0106 (11) | 0.0126 (10) | 0.0023 (9) |
O12B | 0.0281 (16) | 0.0350 (13) | 0.0313 (11) | 0.0029 (10) | 0.0125 (9) | 0.0025 (9) |
C17B | 0.017 (2) | 0.0274 (18) | 0.0340 (16) | 0.0035 (15) | 0.0079 (13) | 0.0009 (13) |
O17B | 0.0305 (16) | 0.0261 (12) | 0.0384 (11) | −0.0017 (11) | 0.0129 (10) | 0.0027 (9) |
N1B | 0.0282 (19) | 0.0266 (14) | 0.0301 (13) | −0.0050 (12) | 0.0090 (11) | 0.0033 (10) |
C21B | 0.017 (2) | 0.0271 (17) | 0.0304 (15) | 0.0057 (14) | 0.0069 (12) | 0.0002 (12) |
C22B | 0.021 (2) | 0.0280 (17) | 0.0367 (16) | −0.0010 (15) | 0.0091 (13) | −0.0002 (13) |
C23B | 0.031 (2) | 0.0335 (19) | 0.0348 (16) | −0.0013 (16) | 0.0125 (14) | 0.0067 (13) |
C24B | 0.032 (2) | 0.038 (2) | 0.0283 (15) | 0.0019 (17) | 0.0067 (14) | 0.0010 (14) |
C25B | 0.025 (2) | 0.0332 (19) | 0.0354 (17) | −0.0019 (15) | 0.0034 (14) | −0.0037 (13) |
C26B | 0.020 (2) | 0.0308 (19) | 0.0360 (16) | 0.0005 (15) | 0.0078 (13) | 0.0060 (13) |
N24B | 0.045 (2) | 0.051 (2) | 0.0319 (15) | −0.0044 (16) | 0.0061 (13) | −0.0007 (14) |
O41B | 0.078 (2) | 0.0613 (17) | 0.0337 (12) | −0.0113 (15) | 0.0177 (12) | 0.0048 (12) |
O42B | 0.112 (3) | 0.0640 (19) | 0.0414 (14) | −0.0305 (18) | 0.0095 (14) | −0.0094 (12) |
Geometric parameters (Å, º) top
C11A—C16A | 1.393 (4) | C11B—C16B | 1.400 (4) |
C11A—C12A | 1.403 (4) | C11B—C12B | 1.402 (4) |
C11A—C17A | 1.500 (4) | C11B—C17B | 1.499 (4) |
C12A—C13A | 1.391 (4) | C12B—C13B | 1.393 (3) |
C12A—C18A | 1.481 (4) | C12B—C18B | 1.485 (4) |
C13A—C14A | 1.377 (4) | C13B—C14B | 1.383 (4) |
C13A—H13A | 0.95 | C13B—H13B | 0.95 |
C14A—C15A | 1.372 (4) | C14B—C15B | 1.377 (4) |
C14A—H14A | 0.95 | C14B—H14B | 0.95 |
C15A—C16A | 1.377 (4) | C15B—C16B | 1.375 (4) |
C15A—H15A | 0.95 | C15B—H15B | 0.95 |
C16A—H16A | 0.95 | C16B—H16B | 0.95 |
C18A—O11A | 1.321 (3) | C18B—O11B | 1.324 (3) |
C18A—O12A | 1.219 (3) | C18B—O12B | 1.213 (3) |
O11A—H11A | 0.84 | O11B—H11B | 0.84 |
C17A—O17A | 1.231 (3) | C17B—O17B | 1.229 (3) |
C17A—N1A | 1.348 (4) | C17B—N1B | 1.353 (4) |
N1A—C21A | 1.398 (3) | N1B—C21B | 1.404 (3) |
N1A—H1A | 0.88 | N1B—H1B | 0.88 |
C21A—C22A | 1.389 (4) | C21B—C26B | 1.392 (4) |
C21A—C26A | 1.396 (4) | C21B—C22B | 1.396 (4) |
C22A—C23A | 1.377 (4) | C22B—C23B | 1.382 (4) |
C22A—H22A | 0.95 | C22B—H22B | 0.95 |
C23A—C24A | 1.381 (5) | C23B—C24B | 1.377 (4) |
C23A—H23A | 0.95 | C23B—H23B | 0.95 |
C24A—C25A | 1.373 (5) | C24B—C25B | 1.373 (4) |
C24A—N24A | 1.462 (4) | C24B—N24B | 1.462 (4) |
C25A—C26A | 1.376 (4) | C25B—C26B | 1.376 (4) |
C25A—H25A | 0.95 | C25B—H25B | 0.95 |
C26A—H26A | 0.95 | C26B—H26B | 0.95 |
N24A—O42A | 1.227 (5) | N24B—O41B | 1.220 (3) |
N24A—O41A | 1.238 (4) | N24B—O42B | 1.220 (3) |
| | | |
C16A—C11A—C12A | 119.3 (2) | C16B—C11B—C12B | 119.3 (2) |
C16A—C11A—C17A | 118.7 (3) | C16B—C11B—C17B | 118.3 (3) |
C12A—C11A—C17A | 122.0 (3) | C12B—C11B—C17B | 122.2 (3) |
C13A—C12A—C11A | 119.4 (3) | C13B—C12B—C11B | 119.7 (3) |
C13A—C12A—C18A | 121.2 (3) | C13B—C12B—C18B | 120.9 (3) |
C11A—C12A—C18A | 119.2 (2) | C11B—C12B—C18B | 119.4 (2) |
C14A—C13A—C12A | 120.3 (3) | C14B—C13B—C12B | 120.1 (3) |
C14A—C13A—H13A | 119.8 | C14B—C13B—H13B | 119.9 |
C12A—C13A—H13A | 119.8 | C12B—C13B—H13B | 119.9 |
C15A—C14A—C13A | 120.3 (3) | C15B—C14B—C13B | 120.0 (3) |
C15A—C14A—H14A | 119.9 | C15B—C14B—H14B | 120.0 |
C13A—C14A—H14A | 119.9 | C13B—C14B—H14B | 120.0 |
C14A—C15A—C16A | 120.5 (3) | C16B—C15B—C14B | 121.1 (3) |
C14A—C15A—H15A | 119.7 | C16B—C15B—H15B | 119.5 |
C16A—C15A—H15A | 119.7 | C14B—C15B—H15B | 119.5 |
C15A—C16A—C11A | 120.2 (3) | C15B—C16B—C11B | 119.8 (3) |
C15A—C16A—H16A | 119.9 | C15B—C16B—H16B | 120.1 |
C11A—C16A—H16A | 119.9 | C11B—C16B—H16B | 120.1 |
O12A—C18A—O11A | 122.9 (3) | O12B—C18B—O11B | 123.5 (3) |
O12A—C18A—C12A | 123.7 (3) | O12B—C18B—C12B | 122.8 (3) |
O11A—C18A—C12A | 113.3 (2) | O11B—C18B—C12B | 113.7 (2) |
C18A—O11A—H11A | 109.5 | C18B—O11B—H11B | 109.5 |
O17A—C17A—N1A | 124.6 (2) | O17B—C17B—N1B | 124.9 (2) |
O17A—C17A—C11A | 121.0 (3) | O17B—C17B—C11B | 120.3 (2) |
N1A—C17A—C11A | 114.3 (3) | N1B—C17B—C11B | 114.7 (2) |
C17A—N1A—C21A | 127.6 (2) | C17B—N1B—C21B | 129.0 (2) |
C17A—N1A—H1A | 116.2 | C17B—N1B—H1B | 115.5 |
C21A—N1A—H1A | 116.2 | C21B—N1B—H1B | 115.5 |
C22A—C21A—C26A | 120.1 (3) | C26B—C21B—C22B | 119.4 (2) |
C22A—C21A—N1A | 122.5 (3) | C26B—C21B—N1B | 116.8 (2) |
C26A—C21A—N1A | 117.3 (3) | C22B—C21B—N1B | 123.8 (3) |
C23A—C22A—C21A | 119.5 (3) | C23B—C22B—C21B | 119.6 (3) |
C23A—C22A—H22A | 120.2 | C23B—C22B—H22B | 120.2 |
C21A—C22A—H22A | 120.2 | C21B—C22B—H22B | 120.2 |
C22A—C23A—C24A | 119.2 (3) | C24B—C23B—C22B | 119.6 (3) |
C22A—C23A—H23A | 120.4 | C24B—C23B—H23B | 120.2 |
C24A—C23A—H23A | 120.4 | C22B—C23B—H23B | 120.2 |
C25A—C24A—C23A | 122.3 (3) | C25B—C24B—C23B | 121.6 (3) |
C25A—C24A—N24A | 118.3 (4) | C25B—C24B—N24B | 119.2 (3) |
C23A—C24A—N24A | 119.4 (3) | C23B—C24B—N24B | 119.2 (3) |
C24A—C25A—C26A | 118.6 (3) | C24B—C25B—C26B | 119.0 (3) |
C24A—C25A—H25A | 120.7 | C24B—C25B—H25B | 120.5 |
C26A—C25A—H25A | 120.7 | C26B—C25B—H25B | 120.5 |
C25A—C26A—C21A | 120.2 (3) | C25B—C26B—C21B | 120.7 (3) |
C25A—C26A—H26A | 119.9 | C25B—C26B—H26B | 119.7 |
C21A—C26A—H26A | 119.9 | C21B—C26B—H26B | 119.7 |
O42A—N24A—O41A | 124.0 (3) | O41B—N24B—O42B | 122.7 (3) |
O42A—N24A—C24A | 118.4 (4) | O41B—N24B—C24B | 119.3 (3) |
O41A—N24A—C24A | 117.6 (4) | O42B—N24B—C24B | 118.1 (3) |
| | | |
C16A—C11A—C12A—C13A | −2.0 (4) | C16B—C11B—C12B—C13B | 0.1 (4) |
C17A—C11A—C12A—C13A | −179.2 (3) | C17B—C11B—C12B—C13B | −176.6 (3) |
C16A—C11A—C12A—C18A | 173.2 (3) | C16B—C11B—C12B—C18B | 180.0 (3) |
C17A—C11A—C12A—C18A | −4.1 (4) | C17B—C11B—C12B—C18B | 3.3 (4) |
C11A—C12A—C13A—C14A | 0.5 (4) | C11B—C12B—C13B—C14B | −0.9 (4) |
C18A—C12A—C13A—C14A | −174.6 (3) | C18B—C12B—C13B—C14B | 179.2 (3) |
C12A—C13A—C14A—C15A | 1.8 (5) | C12B—C13B—C14B—C15B | 0.9 (4) |
C13A—C14A—C15A—C16A | −2.6 (5) | C13B—C14B—C15B—C16B | 0.0 (5) |
C14A—C15A—C16A—C11A | 1.1 (5) | C14B—C15B—C16B—C11B | −0.8 (4) |
C12A—C11A—C16A—C15A | 1.2 (5) | C12B—C11B—C16B—C15B | 0.7 (4) |
C17A—C11A—C16A—C15A | 178.6 (3) | C17B—C11B—C16B—C15B | 177.5 (3) |
C13A—C12A—C18A—O12A | −179.5 (3) | C13B—C12B—C18B—O12B | 169.7 (3) |
C11A—C12A—C18A—O12A | 5.5 (4) | C11B—C12B—C18B—O12B | −10.2 (4) |
C13A—C12A—C18A—O11A | 2.7 (4) | C13B—C12B—C18B—O11B | −10.5 (4) |
C11A—C12A—C18A—O11A | −172.4 (3) | C11B—C12B—C18B—O11B | 169.6 (3) |
C16A—C11A—C17A—O17A | −79.0 (4) | C16B—C11B—C17B—O17B | −81.3 (4) |
C12A—C11A—C17A—O17A | 98.3 (4) | C12B—C11B—C17B—O17B | 95.4 (3) |
C16A—C11A—C17A—N1A | 97.4 (3) | C16B—C11B—C17B—N1B | 94.6 (3) |
C12A—C11A—C17A—N1A | −85.3 (4) | C12B—C11B—C17B—N1B | −88.7 (4) |
O17A—C17A—N1A—C21A | −11.3 (5) | O17B—C17B—N1B—C21B | −7.6 (5) |
C11A—C17A—N1A—C21A | 172.5 (3) | C11B—C17B—N1B—C21B | 176.7 (3) |
C17A—N1A—C21A—C22A | −26.3 (4) | C17B—N1B—C21B—C26B | −170.5 (3) |
C17A—N1A—C21A—C26A | 155.2 (3) | C17B—N1B—C21B—C22B | 10.8 (5) |
C26A—C21A—C22A—C23A | −0.9 (4) | C26B—C21B—C22B—C23B | 0.8 (4) |
N1A—C21A—C22A—C23A | −179.5 (3) | N1B—C21B—C22B—C23B | 179.5 (3) |
C21A—C22A—C23A—C24A | 0.0 (4) | C21B—C22B—C23B—C24B | 0.3 (5) |
C22A—C23A—C24A—C25A | 0.2 (5) | C22B—C23B—C24B—C25B | −0.9 (5) |
C22A—C23A—C24A—N24A | −179.2 (3) | C22B—C23B—C24B—N24B | 178.8 (3) |
C23A—C24A—C25A—C26A | 0.5 (5) | C23B—C24B—C25B—C26B | 0.3 (5) |
N24A—C24A—C25A—C26A | 179.9 (3) | N24B—C24B—C25B—C26B | −179.4 (3) |
C24A—C25A—C26A—C21A | −1.4 (4) | C24B—C25B—C26B—C21B | 0.8 (5) |
C22A—C21A—C26A—C25A | 1.6 (4) | C22B—C21B—C26B—C25B | −1.4 (5) |
N1A—C21A—C26A—C25A | −179.7 (3) | N1B—C21B—C26B—C25B | 179.8 (3) |
C25A—C24A—N24A—O42A | −12.5 (5) | C25B—C24B—N24B—O41B | −174.0 (3) |
C23A—C24A—N24A—O42A | 166.9 (3) | C23B—C24B—N24B—O41B | 6.3 (5) |
C25A—C24A—N24A—O41A | 167.6 (3) | C25B—C24B—N24B—O42B | 6.3 (5) |
C23A—C24A—N24A—O41A | −13.0 (5) | C23B—C24B—N24B—O42B | −173.3 (3) |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
N1A—H1A···O12Bi | 0.88 | 2.09 | 2.873 (4) | 147 |
N1B—H1B···O12Aii | 0.88 | 2.16 | 2.902 (3) | 141 |
O11A—H11A···O17B | 0.84 | 1.84 | 2.664 (3) | 166 |
O11B—H11B···O17Aiii | 0.84 | 1.83 | 2.666 (3) | 174 |
C16A—H16A···O12Ai | 0.95 | 2.46 | 3.368 (3) | 159 |
C23B—H23B···O41Aiv | 0.95 | 2.45 | 3.355 (4) | 160 |
Symmetry codes: (i) −x+1/2, y−1/2, −z+1/2; (ii) −x+3/2, y+1/2, −z+1/2; (iii) x, y+1, z; (iv) x+1/2, −y+1/2, z+1/2. |
Experimental details
| (I) | (II) | (III) |
Crystal data |
Chemical formula | C14H10N2O5 | C14H10N2O5 | C14H10N2O5 |
Mr | 286.24 | 286.24 | 286.24 |
Crystal system, space group | Orthorhombic, Pbca | Orthorhombic, P212121 | Monoclinic, P21/n |
Temperature (K) | 120 | 120 | 120 |
a, b, c (Å) | 7.2761 (2), 14.8881 (5), 23.0407 (6) | 3.9188 (2), 12.6896 (6), 27.7029 (16) | 10.2098 (10), 9.3749 (8), 27.409 (2) |
α, β, γ (°) | 90, 90, 90 | 90, 90, 90 | 90, 100.578 (4), 90 |
V (Å3) | 2495.94 (13) | 1377.61 (12) | 2578.9 (4) |
Z | 8 | 4 | 8 |
Radiation type | Mo Kα | Mo Kα | Mo Kα |
µ (mm−1) | 0.12 | 0.11 | 0.11 |
Crystal size (mm) | 0.36 × 0.36 × 0.22 | 0.25 × 0.08 × 0.04 | 0.22 × 0.18 × 0.10 |
|
Data collection |
Diffractometer | Nonius KappaCCD area-detector diffractometer | Nonius KappaCCD area-detector diffractometer | Nonius KappaCCD area-detector diffractometer |
Absorption correction | Multi-scan (SORTAV; Blessing, 1995, 1997) | Multi-scan (SORTAV; Blessing, 1995, 1997) | Multi-scan (SORTAV; Blessing, 1995, 1997) |
Tmin, Tmax | 0.955, 0.975 | 0.969, 0.996 | 0.965, 0.989 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 15224, 2848, 1876 | 4875, 1820, 1237 | 19240, 5503, 2662 |
Rint | 0.072 | 0.052 | 0.095 |
(sin θ/λ)max (Å−1) | 0.649 | 0.649 | 0.648 |
|
Refinement |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.115, 0.98 | 0.055, 0.123, 1.09 | 0.069, 0.166, 0.99 |
No. of reflections | 2848 | 1820 | 5503 |
No. of parameters | 191 | 191 | 381 |
No. of restraints | 0 | 1 | 0 |
H-atom treatment | H-atom parameters constrained | H-atom parameters constrained | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.24, −0.29 | 0.21, −0.21 | 0.30, −0.26 |
Selected geometric parameters (Å, º) for (I) topC18—O11 | 1.312 (2) | C18—O12 | 1.227 (2) |
| | | |
C12—C11—C17—N1 | 127.5 (2) | C11—C12—C18—O11 | 153.6 (2) |
C11—C17—N1—C21 | 177.8 (2) | C21—C22—N22—O21 | 143.3 (2) |
C17—N1—C21—C22 | −139.1 (2) | | |
Hydrogen-bond geometry (Å, º) for (I) top
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O22 | 0.88 | 2.14 | 2.719 (2) | 123 |
O11—H11···O12i | 0.84 | 1.78 | 2.623 (2) | 178 |
Symmetry code: (i) −x+1, −y+1, −z+1. |
Selected geometric parameters (Å, º) for (II) topC18—O11 | 1.324 (3) | C18—O12 | 1.219 (3) |
| | | |
C12—C11—C17—N1 | −64.8 (5) | C11—C12—C18—O11 | 171.2 (3) |
C11—C17—N1—C21 | 179.1 (3) | C23—C24—N24—O41 | 168.8 (4) |
C17—N1—C21—C22 | 17.7 (6) | | |
Hydrogen-bond geometry (Å, º) for (II) top
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O12i | 0.88 | 1.96 | 2.833 (3) | 171 |
O11—H11···O17ii | 0.84 | 1.78 | 2.614 (3) | 173 |
Symmetry codes: (i) x−1, y, z; (ii) −x+2, y+1/2, −z+3/2. |
Selected geometric parameters (Å, º) for (III) topC18A—O11A | 1.321 (3) | C18B—O11B | 1.324 (3) |
C18A—O12A | 1.219 (3) | C18B—O12B | 1.213 (3) |
| | | |
C12A—C11A—C17A—N1A | −85.3 (4) | C12B—C11B—C17B—N1B | −88.7 (4) |
C11A—C17A—N1A—C21A | 172.5 (3) | C11B—C17B—N1B—C21B | 176.7 (3) |
C17A—N1A—C21A—C22A | −26.3 (4) | C17B—N1B—C21B—C22B | 10.8 (5) |
Hydrogen-bond geometry (Å, º) for (III) top
D—H···A | D—H | H···A | D···A | D—H···A |
N1A—H1A···O12Bi | 0.88 | 2.09 | 2.873 (4) | 147 |
N1B—H1B···O12Aii | 0.88 | 2.16 | 2.902 (3) | 141 |
O11A—H11A···O17B | 0.84 | 1.84 | 2.664 (3) | 166 |
O11B—H11B···O17Aiii | 0.84 | 1.83 | 2.666 (3) | 174 |
C23B—H23B···O41Aiv | 0.95 | 2.45 | 3.355 (4) | 160 |
Symmetry codes: (i) −x+1/2, y−1/2, −z+1/2; (ii) −x+3/2, y+1/2, −z+1/2; (iii) x, y+1, z; (iv) x+1/2, −y+1/2, z+1/2. |
The reaction of C-substituted anilines with phthalic anhydride initially yields N-arylbenzamide-2-carboxylic acids, (A) (see Scheme). Dehydration of this type of intermediate yields N-arylphthalimides, (B), while hydrolysis yields arylammonium hydrogenphthalates, (C). We have recently reported the supramolecular structure of a type (C) salt, 4-iodoanilinium 3-nitrophthalate(1-) (Glidewell et al., 2003), and here we report the molecular and supramolecular structures of two examples of the type (A) intermediate, namely N-(2-nitrophenyl)benzamide-2-carboxylic acid, (I) (Fig. 1) and two polymorphs of N-(4-nitrophenyl)benzamide-2-carboxylic acid, orthorhombic, (II), (Fig. 2) and monoclinic, (III) (Fig. 3). \sch
In each of compounds (I)-(III), the central C11—C17(O17)—N1—C21 fragment of the molecule is essentially planar, with a trans amide conformation. The C11—C16 and C21—C26 rings are considerably rotated away from this plane, as indicated by the key torsion angles (Tables 1, 3 and 5). In (I), the carboxyl and nitro groups make dihedral angles of 29.9 (2) and 36.5 (2)°, respectively, with the adjacent aryl rings, and in (II) the corresponding angles are 12.2 (2) and 11.1 (2)°, respectively. In (III), these dihedral angles are 7.7 (2) and 13.0 (2)°, respectively, in molecule A, and 10.1 (2) and 6.5 (1)°, respectively, in molecule B. The C—O distances in the carboxyl groups are consistent with the location of the fully ordered carboxyl H atoms, as identified from difference maps. The other bond distances and angles show no exceptional features.
In compound (I) (Fig. 1), there is an intramolecular N—H···O hydrogen bond forming an S(6) motif (Bernstein et al., 1995). The supramolecular aggregation is dominated by a single O—H···O hydrogen bond, propagated by aromatic π–π stacking interactions. Carboxyl atom O11 in the molecule at (x, y, z) acts as hydrogen-bond donor to carboxyl atom O12 in the molecule at (1 − x, 1 − y, 1 − z), so generating a centrosymmetric dimer characterized by the usual R22(8) motif and centred at (1/2, 1/2, 1/2) (Fig. 4).
The π–π stacking interaction involves the nitro-substituted ring of the molecule at (x, y, z), which is part of the dimer centred at (1/2, 1/2, 1/2), and the corresponding rings of the molecules at (1/2 + x, y, 3/2 − z) and (x − 1/2, y, 3/2 − z), which themselves are components of the dimers centred at (1, 1/2, 1) and (0, 1/2, 1), respectively. The interplanar angle between adjacent rings of this type is ca 9.5°, with a centroid separation of 3.793 (2) Å and an interplanar spacing of ca 3.42 Å. Propagation by inversion of this interaction also links the (1/2, 1/2, 1/2) dimer to those centred at (0, 1/2, 0) and (1, 1/2, 0), and hence the R22(8) dimers are linked into an (010) sheet (Fig. 5).
Whereas the supramolecular structure of (I) is controlled by a combination of O—H···O hydrogen bonds and aromatic π–π stacking interactions, while the N—H bond participates only in an intramolecular hydrogen bond, the supramolecular aggregation in the polymorphic compounds (II) and (III) is controlled by a combination of N—H···O and O—H···O hydrogen bonds. While π–π stacking interactions and X—H···π(arene) hydrogen bonds (X is C, N or O) are all absent from the structures of (II) and (III), there are two C—H···O hydrogen bonds present in (III).
In compound (II), the amidic atom N1 in the molecule at (x, y, z) acts as hydrogen-bond donor to carboxyl atom O12 in the molecule at (x − 1, y, z), so generating by translation a C(7) chain running parallel to the [100] direction. At the same time, carboxyl atom O11 at (x, y, z) acts as hydrogen-bond donor to amidic atom O17 in the molecule at (1 − x, 1/2 + y, 1/2 − z), so producing a spiral C(7) chain running parallel to the [010] direction and generated by the 21 screw axis along (1/2, y, 1/4). It is noteworthy that the carboxyl group in (II) forms neither of the motifs so characteristic of simple carboxylic acids, namely the R22(8) dimer [cf. compound (I)] and the C(4) chain. Likewise, the amide group in (II) does not form the C(4) chain often found in simple carboxylic amides, but instead each of the two hydrogen bonds in (II) utilizes a donor and an acceptor from the different functional groups, acid and amide, within the molecule.
The combination of the two C(7) chains in (II) generates an (001) sheet in the form of a hydrogen-bonded (4,4) net (Batten & Robson 1998) built from a single type of R44(22) ring (Fig. 6). This sheet lies in the domain −0.03 < z < 0.53 and a second such sheet lies in the domain 0.47 < z < 1.03, but there are no direction-specific interactions between adjacent sheets.
The supramolecular structure of the monoclinic form, (III), consists of sheets generated by a combination of O—H···O and N—H···O hydrogen bonds, linked into a three-dimensional framework by a single rather strong C—H···O hydrogen bond (Table 6). Carboxyl atom O11A acts as hydrogen-bond donor to amidic atom O17B within the asymmetric unit (Fig. 3) and, in a similar fashion, carboxyl atom O11B in the type B molecule at (x, y, z) acts as hydrogen-bond donor to amidic atom O17A in the type A molecule at (x, 1 + y, z). These two hydrogen bonds thus generate by translation a C22(14) chain running parallel to the [010] direction (Fig. 7). These translational chains are then linked into (001) sheets by the two N—H···O hydrogen bonds.
Amino atom N1A in the type A molecule at (x, y, z) acts as hydrogen-bond donor to carboxyl atom O12B in the type B molecule at (1/2 − x, y − 1/2, 1/2 − z), so producing a second C22(14) chain parallel to [010], this time generated by the 21 screw axis along (1/4, y, 1/4) (Fig. 8). Similarly, amino atom N1B at (x, y, z) acts as hydrogen-bond donor to carboxyl atom O12A at (3/2 − x, 1/2 + y, 1/2 − z), so producing a third C22(14) chain, this time generated by the 21 screw axis along (3/4, y, 1/4).
The combination of these three C22(14) chains generates an (001) sheet lying in the domain −0.02 < z < 0.52, and a second such sheet, related to the first by inversion, lies in the domain 0.48 < z < 1.02. The sheet is reinforced by a C—H···O hydrogen bond (Table 6) and adjacent sheets are linked by a second C—H···O hydrogen bond. Atom C23B in the type B molecule at (x, y, z), which lies in the −0.02 < z < 0.52 sheet, acts as hydrogen-bond donor to nitro atom O41A in the type A molecule at (1/2 + x, 1/2 − y, 1/2 + z), which forms part of the sheet in the domain 0.48 < z < 1.02. Propagation of this interaction by the space group then generates a single three-dimensional framework.