organic compounds
3,3′-Diazenediyldiphthalic acid dihydrate
aCollege of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China, and bDepartment of Chemistry, SiChuan University of Science and Engineering, Zigong 643000, People's Republic of China
*Correspondence e-mail: lulusczg@126.com
In the 16H10N2O8·2H2O, the organic molecule is located on a centre of symmetry. The two benzene rings are parallel, but not coplanar, as indicated by N=N—C—C torsion angles involving the azo group of 12.1 (5) and −168.2 (3)°. The organic molecule and the water molecule are linked by O—H⋯O hydrogen bonds, forming a three-dimensional network.
of the title compound, CExperimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell APEX2; data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536807064112/is2247sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807064112/is2247Isup2.hkl
CdSO4 (0.033 g, 0.012 mmol), 2,2',3,3'-diazenediyldiphthalic acid (0.026 g, 0.014 mmol) and NaOH (0.048 mmol, 0.12 mmol), were added in a mixed solvent of acetonitrile and the mixture was heated for ten hours under reflux. During the process stirring and influx were required. The resultant was then filtered to give a pure solution which was infiltrated by diethyl ether freely in a closed vessel. Single crystals suitable for X-ray diffraction were obtained for a week.
C-bound H atoms were placed at calculated positions (C—H = 0.93 Å) and were treated as riding, with Uiso(H) = 1.2Ueq(C). Carboxy H atoms were constrained with O—H = 0.82 Å and Uiso(H) = 1.2Ueq(O), but each O—H group was allowed to rotate freely about its C—O bond. Water H atoms were tentatively located in a difference Fourier map and were refined, with distance restraints of O–H = 0.85 (1) Å and H···H = 1.39 (1) Å, and with Uiso(H) = 1.2Ueq(O). The maximum residual peak is located 1.34 Å from Br1.
In an attempt to prepare a Cd-containing coordination polmyer (Carlucci et al., 2000), the title compound was obtained as an unexpected product.
The complete organic molecule (Fig. 1) is generated by inversion at the midpoint of the central N—N bond and a water molecule of crystallization completes the
The components interact through O—H···O hydrogen bonds (Table 1) to generate a three-dimensional architecture.For related literature, see: Carlucci et al. (2000).
Data collection: APEX2 (Bruker, 2004); cell
APEX2 (Bruker, 2004); data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 (Sheldrick, 1997).Fig. 1. The molecular structure of (I), showing the atomic numbering scheme. Non-H atoms are shown as 30% probability displacement ellipsoids. [symmetry code: (i) 1 - x, 1 - y, 1 - z] |
C16H10N2O8·2H2O | Z = 1 |
Mr = 394.29 | F(000) = 204 |
Triclinic, P1 | Dx = 1.519 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 6.6914 (14) Å | Cell parameters from 1248 reflections |
b = 7.8566 (17) Å | θ = 2.4–25.2° |
c = 8.7665 (19) Å | µ = 0.13 mm−1 |
α = 95.658 (3)° | T = 298 K |
β = 100.628 (3)° | Block, colourless |
γ = 105.601 (3)° | 0.27 × 0.19 × 0.15 mm |
V = 430.90 (16) Å3 |
Bruker APEXII area-detector diffractometer | 1530 independent reflections |
Radiation source: fine-focus sealed tube | 1248 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.009 |
φ and ω scan | θmax = 25.2°, θmin = 2.4° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | h = −7→8 |
Tmin = 0.966, Tmax = 0.981 | k = −6→9 |
2297 measured reflections | l = −10→10 |
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)] = 0.084 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.260 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.11 | w = 1/[σ2(Fo2) + (0.16P)2 + 0.1722P] where P = (Fo2 + 2Fc2)/3 |
1530 reflections | (Δ/σ)max < 0.001 |
135 parameters | Δρmax = 1.04 e Å−3 |
3 restraints | Δρmin = −0.19 e Å−3 |
C16H10N2O8·2H2O | γ = 105.601 (3)° |
Mr = 394.29 | V = 430.90 (16) Å3 |
Triclinic, P1 | Z = 1 |
a = 6.6914 (14) Å | Mo Kα radiation |
b = 7.8566 (17) Å | µ = 0.13 mm−1 |
c = 8.7665 (19) Å | T = 298 K |
α = 95.658 (3)° | 0.27 × 0.19 × 0.15 mm |
β = 100.628 (3)° |
Bruker APEXII area-detector diffractometer | 1530 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | 1248 reflections with I > 2σ(I) |
Tmin = 0.966, Tmax = 0.981 | Rint = 0.009 |
2297 measured reflections |
R[F2 > 2σ(F2)] = 0.084 | 3 restraints |
wR(F2) = 0.260 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.11 | Δρmax = 1.04 e Å−3 |
1530 reflections | Δρmin = −0.19 e Å−3 |
135 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
C1 | 0.1413 (5) | 0.2366 (4) | 0.1954 (4) | 0.0537 (8) | |
C2 | 0.0818 (5) | 0.2502 (4) | 0.3535 (3) | 0.0505 (8) | |
C3 | −0.1122 (5) | 0.1482 (4) | 0.3774 (4) | 0.0541 (8) | |
C4 | −0.2663 (5) | 0.0169 (4) | 0.2462 (4) | 0.0558 (8) | |
C5 | −0.1571 (6) | 0.1709 (5) | 0.5259 (4) | 0.0688 (10) | |
H5 | −0.2867 | 0.1042 | 0.5425 | 0.083* | |
C6 | −0.0133 (7) | 0.2900 (6) | 0.6479 (4) | 0.0775 (11) | |
H6 | −0.0472 | 0.3046 | 0.7457 | 0.093* | |
C7 | 0.1814 (7) | 0.3884 (5) | 0.6264 (4) | 0.0741 (11) | |
H7 | 0.2792 | 0.4681 | 0.7095 | 0.089* | |
C8 | 0.2295 (5) | 0.3672 (4) | 0.4798 (4) | 0.0585 (9) | |
N1 | 0.4269 (5) | 0.4597 (4) | 0.4434 (3) | 0.0664 (9) | |
O1 | 0.1017 (4) | 0.3301 (3) | 0.1000 (3) | 0.0728 (8) | |
O2 | 0.2414 (5) | 0.1183 (4) | 0.1782 (3) | 0.0797 (9) | |
H2 | 0.2913 | 0.1285 | 0.0997 | 0.120* | |
O3 | −0.2418 (5) | 0.0128 (4) | 0.1130 (3) | 0.0933 (11) | |
O4 | −0.4243 (4) | −0.0911 (4) | 0.2846 (3) | 0.0759 (8) | |
H4 | −0.4939 | −0.1658 | 0.2080 | 0.114* | |
O1W | 0.3401 (5) | 0.6712 (4) | 0.0411 (4) | 0.0934 (10) | |
H1WA | 0.306 (7) | 0.563 (3) | 0.057 (8) | 0.140* | |
H1WB | 0.228 (5) | 0.705 (6) | 0.025 (8) | 0.140* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0446 (15) | 0.0528 (17) | 0.0533 (17) | 0.0005 (13) | 0.0063 (12) | 0.0074 (14) |
C2 | 0.0540 (16) | 0.0461 (15) | 0.0499 (16) | 0.0139 (13) | 0.0078 (13) | 0.0087 (12) |
C3 | 0.0584 (18) | 0.0510 (17) | 0.0584 (18) | 0.0205 (14) | 0.0168 (14) | 0.0137 (13) |
C4 | 0.0509 (17) | 0.0527 (17) | 0.0627 (19) | 0.0066 (14) | 0.0185 (14) | 0.0165 (14) |
C5 | 0.078 (2) | 0.075 (2) | 0.070 (2) | 0.0326 (19) | 0.0336 (18) | 0.0233 (18) |
C6 | 0.101 (3) | 0.085 (3) | 0.056 (2) | 0.038 (2) | 0.028 (2) | 0.0067 (18) |
C7 | 0.096 (3) | 0.070 (2) | 0.0527 (19) | 0.031 (2) | 0.0049 (17) | −0.0023 (16) |
C8 | 0.0645 (19) | 0.0506 (17) | 0.0566 (18) | 0.0164 (15) | 0.0064 (14) | 0.0045 (13) |
N1 | 0.0659 (18) | 0.0644 (17) | 0.0545 (16) | 0.0066 (14) | 0.0004 (12) | 0.0012 (12) |
O1 | 0.0810 (17) | 0.0723 (16) | 0.0667 (15) | 0.0140 (13) | 0.0225 (12) | 0.0301 (13) |
O2 | 0.100 (2) | 0.100 (2) | 0.0593 (15) | 0.0501 (17) | 0.0301 (13) | 0.0201 (13) |
O3 | 0.0813 (18) | 0.093 (2) | 0.0686 (18) | −0.0311 (15) | 0.0182 (13) | −0.0046 (14) |
O4 | 0.0589 (15) | 0.0733 (17) | 0.0910 (19) | 0.0041 (12) | 0.0260 (13) | 0.0159 (13) |
O1W | 0.0775 (19) | 0.0712 (18) | 0.116 (2) | 0.0007 (14) | 0.0076 (17) | 0.0286 (17) |
C1—O1 | 1.205 (4) | C6—C7 | 1.381 (5) |
C1—O2 | 1.296 (4) | C6—H6 | 0.9300 |
C1—C2 | 1.513 (4) | C7—C8 | 1.387 (5) |
C2—C3 | 1.395 (4) | C7—H7 | 0.9300 |
C2—C8 | 1.398 (4) | C8—N1 | 1.435 (5) |
C3—C5 | 1.394 (5) | N1—N1i | 1.236 (5) |
C3—C4 | 1.486 (5) | O2—H2 | 0.8200 |
C4—O3 | 1.207 (4) | O4—H4 | 0.8200 |
C4—O4 | 1.287 (4) | O1W—H1WA | 0.85 (3) |
C5—C6 | 1.373 (6) | O1W—H1WB | 0.85 (4) |
C5—H5 | 0.9300 | ||
O1—C1—O2 | 125.3 (3) | C3—C5—H5 | 119.4 |
O1—C1—C2 | 122.3 (3) | C5—C6—C7 | 120.4 (3) |
O2—C1—C2 | 112.4 (3) | C5—C6—H6 | 119.8 |
C3—C2—C8 | 119.5 (3) | C7—C6—H6 | 119.8 |
C3—C2—C1 | 122.3 (3) | C6—C7—C8 | 119.4 (3) |
C8—C2—C1 | 118.2 (3) | C6—C7—H7 | 120.3 |
C5—C3—C2 | 118.9 (3) | C8—C7—H7 | 120.3 |
C5—C3—C4 | 121.1 (3) | C7—C8—C2 | 120.7 (3) |
C2—C3—C4 | 120.0 (3) | C7—C8—N1 | 124.6 (3) |
O3—C4—O4 | 123.0 (3) | C2—C8—N1 | 114.7 (3) |
O3—C4—C3 | 121.4 (3) | N1i—N1—C8 | 116.2 (4) |
O4—C4—C3 | 115.6 (3) | C1—O2—H2 | 109.5 |
C6—C5—C3 | 121.1 (3) | C4—O4—H4 | 109.5 |
C6—C5—H5 | 119.4 | H1WA—O1W—H1WB | 109 (5) |
Symmetry code: (i) −x+1, −y+1, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—H1WA···O1 | 0.85 (3) | 2.08 (2) | 2.875 (4) | 155 (4) |
O4—H4···O1Wii | 0.82 | 1.81 | 2.631 (4) | 177 |
O1W—H1WB···O3iii | 0.85 (4) | 2.62 (4) | 3.104 (5) | 117 (4) |
O2—H2···O3iv | 0.82 | 2.00 | 2.657 (4) | 137 |
Symmetry codes: (ii) x−1, y−1, z; (iii) −x, −y+1, −z; (iv) −x, −y, −z. |
Experimental details
Crystal data | |
Chemical formula | C16H10N2O8·2H2O |
Mr | 394.29 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 298 |
a, b, c (Å) | 6.6914 (14), 7.8566 (17), 8.7665 (19) |
α, β, γ (°) | 95.658 (3), 100.628 (3), 105.601 (3) |
V (Å3) | 430.90 (16) |
Z | 1 |
Radiation type | Mo Kα |
µ (mm−1) | 0.13 |
Crystal size (mm) | 0.27 × 0.19 × 0.15 |
Data collection | |
Diffractometer | Bruker APEXII area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2004) |
Tmin, Tmax | 0.966, 0.981 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 2297, 1530, 1248 |
Rint | 0.009 |
(sin θ/λ)max (Å−1) | 0.599 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.084, 0.260, 1.11 |
No. of reflections | 1530 |
No. of parameters | 135 |
No. of restraints | 3 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 1.04, −0.19 |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), ORTEP-3 (Farrugia, 1997).
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—H1WA···O1 | 0.85 (3) | 2.08 (2) | 2.875 (4) | 155 (4) |
O4—H4···O1Wi | 0.82 | 1.81 | 2.631 (4) | 177 |
O1W—H1WB···O3ii | 0.85 (4) | 2.62 (4) | 3.104 (5) | 117 (4) |
O2—H2···O3iii | 0.82 | 2.00 | 2.657 (4) | 137 |
Symmetry codes: (i) x−1, y−1, z; (ii) −x, −y+1, −z; (iii) −x, −y, −z. |
Acknowledgements
The authors are grateful to SiChuan University for financial support.
References
Bruker (2004). APEX2 (Version 1.0-27) and SAINT (Version 6.36A). Bruker AXS Inc., Madison, Winconsin, USA. Google Scholar
Carlucci, L., Ciani, G., Proserpion, G. M. & Rizzato, S. (2000). Angew. Chem. Int. Ed. 39, 1506–1510. CrossRef CAS Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (1997). SHELXS97 and SHELXL97. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2004). SADABS. University of Göttingen, Germany. Google Scholar
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In an attempt to prepare a Cd-containing coordination polmyer (Carlucci et al., 2000), the title compound was obtained as an unexpected product.
The complete organic molecule (Fig. 1) is generated by inversion at the midpoint of the central N—N bond and a water molecule of crystallization completes the crystal structure. The components interact through O—H···O hydrogen bonds (Table 1) to generate a three-dimensional architecture.