Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807037038/xu2298sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807037038/xu2298Isup2.hkl |
CCDC reference: 651058
Key indicators
- Single-crystal X-ray study
- T = 293 K
- Mean (C-C) = 0.003 Å
- R factor = 0.041
- wR factor = 0.094
- Data-to-parameter ratio = 13.7
checkCIF/PLATON results
No syntax errors found
Alert level G PLAT199_ALERT_1_G Check the Reported _cell_measurement_temperature 293 K PLAT200_ALERT_1_G Check the Reported _diffrn_ambient_temperature . 293 K
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 0 ALERT level C = Check and explain 2 ALERT level G = General alerts; check 2 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 0 ALERT type 2 Indicator that the structure model may be wrong or deficient 0 ALERT type 3 Indicator that the structure quality may be low 0 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check
O-Phenylenediamine (0.11 g, 1 mmol) was dissolved in 5 ml glacial acetic acid, and a solution of phthalic anhydride (0.148 g, 1 mmol) in 10 ml of glacial acetic acid was added. After 30 min, the mixture was diluted with cool water, and then the grey precipitate was separated and then refluxed in dry benzene (20 ml) for 4 h using Dean and Stark apparatus. After solvent was removed under reduced pressure the solid product was obtained. The colorless single crystals of the title compound were obtained by recrystallization from an ethanol solution at room temperature after 2 d.
H atoms were positioned geometrically and refined as riding atoms, with C—H = 0.93 Å and Uiso(H) = 1.2Ueq(C).
Isoindolinones and their derivatives have been investigated widely due to their profound physiological and chemotherapeutic properties. Many compounds containing the isoindolinone skeleton have shown antiviral, antileukemic, antiinflammatory, antipsychotic and antiulcer properties (Pendrak et al., 1994; De Clerck, 1995). Isoindolinones are useful for the synthesis of various drugs and naturally occurring compounds (Stowers, 1996; Heaney & Shuhaibar, 1995). In this paper, we report the crystal structure of the title compound.
As shown in Fig. 1, the structure determination indicates that the molecule is non-centrosymmetric. Due to steric encumbering, two isoindolinyl moieties are twisted to the benzene ring with dihedral angles of 58.15 (7) and 61.32 (7)°, respectively, similar to 62.31 (6)° found in 2-(2-pyridyl)isoindoline-1,3-dione (Liang & Li, 2007). The dihedral angle between the two isoindolinyl moieties is 39.45 (6)°. The molecules are linked together by weak C—H···O hydrogen bonding (Table 1).
For general background, see: Pendrak et al. (1994); De Clerck (1995); Stowers (1996); Heaney & Shuhaibar (1995). For a related structure, see: Liang & Li (2007).
Data collection: SMART (Bruker, 1997); cell refinement: SAINT (Bruker, 1999); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL-Plus (Sheldrick, 1990); software used to prepare material for publication: SHELXTL-Plus.
Fig. 1. A view of the molecule of (I). Displacement ellipsoids are drawn at the 50% probability level. |
C22H12N2O4 | F(000) = 760 |
Mr = 368.34 | Dx = 1.385 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 9771 reflections |
a = 10.7765 (10) Å | θ = 2.2–26.0° |
b = 16.9259 (17) Å | µ = 0.10 mm−1 |
c = 10.8518 (10) Å | T = 293 K |
β = 116.780 (1)° | Block, colourless |
V = 1767.1 (3) Å3 | 0.35 × 0.33 × 0.28 mm |
Z = 4 |
Bruker SMART CCD area-detector diffractometer | 2553 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.050 |
Graphite monochromator | θmax = 26.0°, θmin = 2.2° |
φ and ω scans | h = −9→13 |
9771 measured reflections | k = −16→20 |
3476 independent reflections | l = −13→13 |
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)] = 0.041 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.094 | H-atom parameters constrained |
S = 0.95 | w = 1/[σ2(Fo2) + (0.0421P)2] where P = (Fo2 + 2Fc2)/3 |
3476 reflections | (Δ/σ)max = 0.001 |
253 parameters | Δρmax = 0.20 e Å−3 |
0 restraints | Δρmin = −0.19 e Å−3 |
C22H12N2O4 | V = 1767.1 (3) Å3 |
Mr = 368.34 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 10.7765 (10) Å | µ = 0.10 mm−1 |
b = 16.9259 (17) Å | T = 293 K |
c = 10.8518 (10) Å | 0.35 × 0.33 × 0.28 mm |
β = 116.780 (1)° |
Bruker SMART CCD area-detector diffractometer | 2553 reflections with I > 2σ(I) |
9771 measured reflections | Rint = 0.050 |
3476 independent reflections |
R[F2 > 2σ(F2)] = 0.041 | 0 restraints |
wR(F2) = 0.094 | H-atom parameters constrained |
S = 0.95 | Δρmax = 0.20 e Å−3 |
3476 reflections | Δρmin = −0.19 e Å−3 |
253 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 | ||
O1 | 0.45581 (11) | 0.01749 (7) | 0.14315 (11) | 0.0365 (3) | |
O2 | 0.07744 (11) | 0.13152 (8) | 0.15937 (12) | 0.0437 (4) | |
O3 | 0.74820 (11) | 0.10013 (7) | 0.38688 (11) | 0.0322 (3) | |
O4 | 0.34849 (12) | 0.24241 (7) | 0.14859 (13) | 0.0411 (3) | |
N1 | 0.28632 (13) | 0.07596 (8) | 0.18964 (12) | 0.0264 (3) | |
N2 | 0.53713 (12) | 0.16715 (8) | 0.29363 (13) | 0.0257 (3) | |
C1 | 0.34000 (17) | 0.04363 (10) | 0.10366 (16) | 0.0277 (4) | |
C2 | 0.14769 (16) | 0.10141 (10) | 0.11178 (16) | 0.0296 (4) | |
C3 | 0.66539 (16) | 0.14316 (10) | 0.29978 (16) | 0.0252 (4) | |
C4 | 0.46318 (17) | 0.21605 (10) | 0.17971 (16) | 0.0296 (4) | |
C11 | 0.36534 (16) | 0.09109 (10) | 0.33430 (15) | 0.0250 (4) | |
C12 | 0.48509 (16) | 0.13677 (10) | 0.38461 (16) | 0.0251 (4) | |
C13 | 0.55851 (17) | 0.15123 (10) | 0.52504 (16) | 0.0312 (4) | |
H13A | 0.6389 | 0.1817 | 0.5587 | 0.037* | |
C14 | 0.51259 (18) | 0.12054 (11) | 0.61507 (17) | 0.0339 (4) | |
H14A | 0.5619 | 0.1304 | 0.7092 | 0.041* | |
C15 | 0.39354 (18) | 0.07529 (11) | 0.56535 (16) | 0.0336 (4) | |
H15A | 0.3629 | 0.0544 | 0.6261 | 0.040* | |
C16 | 0.31966 (17) | 0.06088 (10) | 0.42531 (16) | 0.0301 (4) | |
H16A | 0.2389 | 0.0307 | 0.3921 | 0.036* | |
C21 | 0.22647 (16) | 0.05014 (10) | −0.03928 (15) | 0.0268 (4) | |
C22 | 0.11188 (16) | 0.08397 (10) | −0.03443 (16) | 0.0283 (4) | |
C23 | −0.00825 (18) | 0.09885 (11) | −0.15363 (17) | 0.0352 (4) | |
H23A | −0.0856 | 0.1211 | −0.1505 | 0.042* | |
C24 | −0.00952 (18) | 0.07944 (11) | −0.27824 (17) | 0.0374 (4) | |
H24A | −0.0890 | 0.0892 | −0.3602 | 0.045* | |
C25 | 0.10523 (18) | 0.04581 (11) | −0.28296 (17) | 0.0388 (5) | |
H25A | 0.1015 | 0.0332 | −0.3680 | 0.047* | |
C26 | 0.22624 (18) | 0.03050 (11) | −0.16251 (16) | 0.0347 (4) | |
H26A | 0.3037 | 0.0079 | −0.1652 | 0.042* | |
C31 | 0.67265 (16) | 0.18160 (10) | 0.18068 (15) | 0.0270 (4) | |
C32 | 0.55298 (16) | 0.22536 (10) | 0.10967 (16) | 0.0295 (4) | |
C33 | 0.53101 (18) | 0.26772 (11) | −0.00715 (18) | 0.0392 (5) | |
H33A | 0.4505 | 0.2973 | −0.0546 | 0.047* | |
C34 | 0.63355 (19) | 0.26451 (12) | −0.05105 (18) | 0.0429 (5) | |
H34A | 0.6214 | 0.2921 | −0.1298 | 0.051* | |
C35 | 0.75357 (19) | 0.22099 (11) | 0.02044 (18) | 0.0388 (5) | |
H35A | 0.8211 | 0.2203 | −0.0107 | 0.047* | |
C36 | 0.77526 (17) | 0.17830 (11) | 0.13755 (17) | 0.0327 (4) | |
H36A | 0.8556 | 0.1487 | 0.1851 | 0.039* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0277 (7) | 0.0500 (8) | 0.0315 (6) | 0.0109 (6) | 0.0132 (5) | −0.0002 (6) |
O2 | 0.0273 (7) | 0.0680 (10) | 0.0370 (7) | 0.0069 (6) | 0.0156 (6) | −0.0122 (6) |
O3 | 0.0240 (6) | 0.0402 (8) | 0.0282 (6) | 0.0050 (6) | 0.0082 (5) | 0.0051 (5) |
O4 | 0.0267 (7) | 0.0422 (8) | 0.0558 (8) | 0.0104 (6) | 0.0199 (6) | 0.0156 (6) |
N1 | 0.0210 (7) | 0.0358 (8) | 0.0233 (7) | 0.0002 (6) | 0.0107 (6) | −0.0034 (6) |
N2 | 0.0197 (7) | 0.0312 (8) | 0.0268 (7) | 0.0019 (6) | 0.0112 (6) | 0.0054 (6) |
C1 | 0.0277 (9) | 0.0297 (10) | 0.0280 (9) | 0.0000 (8) | 0.0145 (8) | −0.0010 (7) |
C2 | 0.0228 (9) | 0.0361 (11) | 0.0305 (9) | −0.0017 (8) | 0.0124 (8) | −0.0034 (8) |
C3 | 0.0198 (8) | 0.0288 (10) | 0.0254 (8) | −0.0027 (7) | 0.0087 (7) | −0.0018 (7) |
C4 | 0.0247 (9) | 0.0293 (10) | 0.0339 (9) | 0.0008 (8) | 0.0123 (8) | 0.0039 (8) |
C11 | 0.0224 (9) | 0.0304 (10) | 0.0223 (8) | 0.0031 (7) | 0.0101 (7) | −0.0011 (7) |
C12 | 0.0225 (8) | 0.0281 (9) | 0.0260 (8) | 0.0024 (7) | 0.0122 (7) | 0.0019 (7) |
C13 | 0.0247 (9) | 0.0353 (11) | 0.0299 (9) | −0.0026 (8) | 0.0090 (8) | −0.0035 (8) |
C14 | 0.0342 (10) | 0.0432 (12) | 0.0220 (8) | 0.0019 (9) | 0.0107 (8) | −0.0014 (8) |
C15 | 0.0367 (10) | 0.0413 (11) | 0.0286 (9) | 0.0010 (9) | 0.0197 (8) | 0.0039 (8) |
C16 | 0.0267 (9) | 0.0343 (11) | 0.0331 (9) | −0.0029 (8) | 0.0168 (8) | −0.0006 (8) |
C21 | 0.0251 (9) | 0.0294 (10) | 0.0252 (8) | 0.0009 (7) | 0.0108 (7) | −0.0002 (7) |
C22 | 0.0244 (9) | 0.0328 (10) | 0.0273 (9) | −0.0019 (8) | 0.0113 (7) | −0.0035 (7) |
C23 | 0.0247 (9) | 0.0423 (12) | 0.0329 (9) | 0.0027 (8) | 0.0080 (8) | −0.0035 (8) |
C24 | 0.0338 (10) | 0.0401 (11) | 0.0276 (9) | 0.0002 (9) | 0.0043 (8) | 0.0007 (8) |
C25 | 0.0441 (11) | 0.0454 (12) | 0.0243 (9) | 0.0004 (9) | 0.0131 (9) | −0.0043 (8) |
C26 | 0.0366 (10) | 0.0402 (11) | 0.0294 (9) | 0.0046 (9) | 0.0167 (8) | −0.0024 (8) |
C31 | 0.0240 (9) | 0.0300 (10) | 0.0271 (8) | −0.0024 (7) | 0.0117 (7) | −0.0002 (7) |
C32 | 0.0245 (9) | 0.0335 (10) | 0.0309 (9) | −0.0004 (8) | 0.0127 (8) | 0.0041 (8) |
C33 | 0.0325 (10) | 0.0434 (12) | 0.0395 (10) | 0.0044 (9) | 0.0143 (9) | 0.0137 (9) |
C34 | 0.0461 (12) | 0.0509 (13) | 0.0350 (10) | −0.0047 (10) | 0.0214 (9) | 0.0104 (9) |
C35 | 0.0397 (11) | 0.0485 (13) | 0.0373 (10) | −0.0071 (9) | 0.0253 (9) | −0.0013 (9) |
C36 | 0.0278 (9) | 0.0378 (11) | 0.0340 (9) | −0.0005 (8) | 0.0152 (8) | −0.0010 (8) |
O1—C1 | 1.2063 (18) | C15—H15A | 0.9300 |
O2—C2 | 1.2050 (18) | C16—H16A | 0.9300 |
O3—C3 | 1.2083 (18) | C21—C26 | 1.377 (2) |
O4—C4 | 1.2101 (18) | C21—C22 | 1.384 (2) |
N1—C1 | 1.4110 (19) | C22—C23 | 1.380 (2) |
N1—C2 | 1.412 (2) | C23—C24 | 1.386 (2) |
N1—C11 | 1.4320 (18) | C23—H23A | 0.9300 |
N2—C4 | 1.400 (2) | C24—C25 | 1.383 (2) |
N2—C3 | 1.4131 (19) | C24—H24A | 0.9300 |
N2—C12 | 1.4328 (19) | C25—C26 | 1.393 (2) |
C1—C21 | 1.485 (2) | C25—H25A | 0.9300 |
C2—C22 | 1.484 (2) | C26—H26A | 0.9300 |
C3—C31 | 1.480 (2) | C31—C32 | 1.382 (2) |
C4—C32 | 1.484 (2) | C31—C36 | 1.383 (2) |
C11—C16 | 1.385 (2) | C32—C33 | 1.381 (2) |
C11—C12 | 1.388 (2) | C33—C34 | 1.388 (2) |
C12—C13 | 1.386 (2) | C33—H33A | 0.9300 |
C13—C14 | 1.380 (2) | C34—C35 | 1.383 (2) |
C13—H13A | 0.9300 | C34—H34A | 0.9300 |
C14—C15 | 1.378 (2) | C35—C36 | 1.387 (2) |
C14—H14A | 0.9300 | C35—H35A | 0.9300 |
C15—C16 | 1.383 (2) | C36—H36A | 0.9300 |
C1—N1—C2 | 111.16 (13) | C26—C21—C22 | 121.72 (15) |
C1—N1—C11 | 125.16 (13) | C26—C21—C1 | 129.55 (15) |
C2—N1—C11 | 123.21 (12) | C22—C21—C1 | 108.68 (13) |
C4—N2—C3 | 111.54 (12) | C23—C22—C21 | 121.09 (15) |
C4—N2—C12 | 125.22 (12) | C23—C22—C2 | 130.42 (15) |
C3—N2—C12 | 122.86 (13) | C21—C22—C2 | 108.45 (14) |
O1—C1—N1 | 125.04 (14) | C22—C23—C24 | 117.67 (16) |
O1—C1—C21 | 129.19 (15) | C22—C23—H23A | 121.2 |
N1—C1—C21 | 105.77 (13) | C24—C23—H23A | 121.2 |
O2—C2—N1 | 124.91 (15) | C25—C24—C23 | 121.19 (16) |
O2—C2—C22 | 129.15 (15) | C25—C24—H24A | 119.4 |
N1—C2—C22 | 105.93 (13) | C23—C24—H24A | 119.4 |
O3—C3—N2 | 124.90 (14) | C24—C25—C26 | 121.09 (16) |
O3—C3—C31 | 129.57 (14) | C24—C25—H25A | 119.5 |
N2—C3—C31 | 105.53 (13) | C26—C25—H25A | 119.5 |
O4—C4—N2 | 124.59 (15) | C21—C26—C25 | 117.24 (16) |
O4—C4—C32 | 129.63 (15) | C21—C26—H26A | 121.4 |
N2—C4—C32 | 105.77 (13) | C25—C26—H26A | 121.4 |
C16—C11—C12 | 119.44 (14) | C32—C31—C36 | 121.38 (15) |
C16—C11—N1 | 119.27 (14) | C32—C31—C3 | 108.62 (13) |
C12—C11—N1 | 121.28 (13) | C36—C31—C3 | 130.00 (15) |
C13—C12—C11 | 119.99 (14) | C33—C32—C31 | 121.41 (15) |
C13—C12—N2 | 119.17 (14) | C33—C32—C4 | 130.07 (15) |
C11—C12—N2 | 120.81 (13) | C31—C32—C4 | 108.52 (14) |
C14—C13—C12 | 120.17 (15) | C32—C33—C34 | 117.47 (16) |
C14—C13—H13A | 119.9 | C32—C33—H33A | 121.3 |
C12—C13—H13A | 119.9 | C34—C33—H33A | 121.3 |
C15—C14—C13 | 119.96 (15) | C35—C34—C33 | 121.09 (16) |
C15—C14—H14A | 120.0 | C35—C34—H34A | 119.5 |
C13—C14—H14A | 120.0 | C33—C34—H34A | 119.5 |
C14—C15—C16 | 120.11 (15) | C34—C35—C36 | 121.35 (16) |
C14—C15—H15A | 119.9 | C34—C35—H35A | 119.3 |
C16—C15—H15A | 119.9 | C36—C35—H35A | 119.3 |
C15—C16—C11 | 120.33 (15) | C31—C36—C35 | 117.31 (16) |
C15—C16—H16A | 119.8 | C31—C36—H36A | 121.3 |
C11—C16—H16A | 119.8 | C35—C36—H36A | 121.3 |
D—H···A | D—H | H···A | D···A | D—H···A |
C13—H13A···O4i | 0.93 | 2.39 | 3.321 (2) | 179 |
C24—H24A···O3ii | 0.93 | 2.51 | 3.405 (2) | 161 |
C26—H26A···O1iii | 0.93 | 2.53 | 3.434 (2) | 164 |
C34—H34A···O2iv | 0.93 | 2.48 | 3.410 (2) | 177 |
C36—H36A···O2v | 0.93 | 2.55 | 3.255 (2) | 133 |
Symmetry codes: (i) x+1/2, −y+1/2, z+1/2; (ii) x−1, y, z−1; (iii) −x+1, −y, −z; (iv) x+1/2, −y+1/2, z−1/2; (v) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C22H12N2O4 |
Mr | 368.34 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 293 |
a, b, c (Å) | 10.7765 (10), 16.9259 (17), 10.8518 (10) |
β (°) | 116.780 (1) |
V (Å3) | 1767.1 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.35 × 0.33 × 0.28 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9771, 3476, 2553 |
Rint | 0.050 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.094, 0.95 |
No. of reflections | 3476 |
No. of parameters | 253 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.20, −0.19 |
Computer programs: SMART (Bruker, 1997), SAINT (Bruker, 1999), SAINT, SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL-Plus (Sheldrick, 1990), SHELXTL-Plus.
D—H···A | D—H | H···A | D···A | D—H···A |
C13—H13A···O4i | 0.93 | 2.39 | 3.321 (2) | 179 |
C24—H24A···O3ii | 0.93 | 2.51 | 3.405 (2) | 161 |
C26—H26A···O1iii | 0.93 | 2.53 | 3.434 (2) | 164 |
C34—H34A···O2iv | 0.93 | 2.48 | 3.410 (2) | 177 |
C36—H36A···O2v | 0.93 | 2.55 | 3.255 (2) | 133 |
Symmetry codes: (i) x+1/2, −y+1/2, z+1/2; (ii) x−1, y, z−1; (iii) −x+1, −y, −z; (iv) x+1/2, −y+1/2, z−1/2; (v) x+1, y, z. |
Isoindolinones and their derivatives have been investigated widely due to their profound physiological and chemotherapeutic properties. Many compounds containing the isoindolinone skeleton have shown antiviral, antileukemic, antiinflammatory, antipsychotic and antiulcer properties (Pendrak et al., 1994; De Clerck, 1995). Isoindolinones are useful for the synthesis of various drugs and naturally occurring compounds (Stowers, 1996; Heaney & Shuhaibar, 1995). In this paper, we report the crystal structure of the title compound.
As shown in Fig. 1, the structure determination indicates that the molecule is non-centrosymmetric. Due to steric encumbering, two isoindolinyl moieties are twisted to the benzene ring with dihedral angles of 58.15 (7) and 61.32 (7)°, respectively, similar to 62.31 (6)° found in 2-(2-pyridyl)isoindoline-1,3-dione (Liang & Li, 2007). The dihedral angle between the two isoindolinyl moieties is 39.45 (6)°. The molecules are linked together by weak C—H···O hydrogen bonding (Table 1).