Abstract
In the title Schiff base, C13H9Cl2NO2, which arose from the condensation of 3,4-dichloroaniline with 2,3-dihydroxybenzaldehyde, the dihedral angle between the aromatic rings is 44.74 (13)°. Intramolecular O—H⋯O and O—H⋯N hydrogen bonds close S(5) and S(6) rings, respectively. In the crystal, inversion dimers linked by pairs of O—H⋯O hydrogen bonds generate R 2 2(10) loops. A weak C—H⋯π interaction is also observed.
Keywords: crystal structure; benzene-1,2-diol; Schiff base; hydrogen bonding
Related literature
For related structures, see: Fun et al. (2011 ▸); Keleşoğlu et al. (2009 ▸); Shuja et al. (2006 ▸); Tahir et al. (2012 ▸); Temel et al. (2007 ▸).
Experimental
Crystal data
C13H9Cl2NO2
M r = 282.11
Triclinic,
a = 6.4237 (8) Å
b = 8.8412 (11) Å
c = 11.7799 (15) Å
α = 88.606 (6)°
β = 76.588 (6)°
γ = 70.193 (5)°
V = 611.20 (13) Å3
Z = 2
Mo Kα radiation
μ = 0.52 mm−1
T = 296 K
0.34 × 0.26 × 0.20 mm
Data collection
Bruker Kappa APEXII CCD diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2005 ▸) T min = 0.844, T max = 0.902
8896 measured reflections
2671 independent reflections
1866 reflections with I > 2σ(I)
R int = 0.042
Refinement
R[F 2 > 2σ(F 2)] = 0.052
wR(F 2) = 0.164
S = 1.04
2671 reflections
165 parameters
H-atom parameters constrained
Δρmax = 0.33 e Å−3
Δρmin = −0.33 e Å−3
Data collection: APEX2 (Bruker, 2007 ▸); cell refinement: SAINT (Bruker, 2007 ▸); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▸); program(s) used to refine structure: SHELXL97 (Sheldrick, 2015 ▸); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012 ▸) and PLATON (Spek, 2009 ▸); software used to prepare material for publication: WinGX (Farrugia, 2012 ▸) and PLATON.
Supplementary Material
Crystal structure: contains datablock(s) global, I. DOI: 10.1107/S2056989015001401/hb7353sup1.cif
Structure factors: contains datablock(s) I. DOI: 10.1107/S2056989015001401/hb7353Isup2.hkl
Supporting information file. DOI: 10.1107/S2056989015001401/hb7353Isup3.cml
. DOI: 10.1107/S2056989015001401/hb7353fig1.tif
View of the title compound with displacement ellipsoids drawn at the 50% probability level.
PLATON . DOI: 10.1107/S2056989015001401/hb7353fig2.tif
The partial packing (PLATON; Spek, 2009), which shows that molecules form dimers due to O—H⋯O interactions.
CCDC reference: 1044861
Additional supporting information: crystallographic information; 3D view; checkCIF report
Table 1. Hydrogen-bond geometry (, ).
Cg1 is the centroid of the benzene ring (C1C6).
| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| O1H1N1 | 0.82 | 1.89 | 2.608(3) | 146 |
| O2H2O1 | 0.82 | 2.28 | 2.729(3) | 115 |
| O2H2O1i | 0.82 | 2.20 | 2.846(3) | 136 |
| C12H12Cg1ii | 0.93 | 2.83 | 3.538(4) | 134 |
Symmetry codes: (i)
; (ii)
.
Acknowledgments
The authors acknowledge the provision of funds for the purchase of diffractometer and encouragement by Dr. Muhammad Akram Chaudhary, Vice Chancellor, University of Sargodha, Pakistan.
supplementary crystallographic information
S1. Comment
The title compound (I), (Fig. 1) has been synthesized for forming different metal complexes.
The crystal structures of 2-[(E)-(2,4,6-trichlorophenyl)iminomethyl] phenol (Fun et al., 2011), (E)-3-((2-fluorophenylimino)methyl) benzene-1,2-diol (Temel et al., 2007), (E)-3-[(3-bromophenyl) iminomethyl]benzene-1,2-diol (Kelesoglu et al., 2009), 4-([(E)-2, 3-dihydroxybenzylidene]amino)-N-(5-methyl-1,2-oxazol-3-yl)benzenesulfonamide (Tahir et al., 2012) and 3-(4-bromophenyliminomethyl)benzene-1,2-diol (Shuja et al., 2006) have been published which are related to the title compound due to two moieties of the Schiff base.
In (I) the moieties of 2,3-dihydroxybenzaldehyde A (C1–C7/O1/O2) and 3,4-dichloroanilline B (C8—13/N1/CL1/CL2) are almost planar with r.m.s. deviation of 0.0225 and 0.0172 Å, respectively. The dihedral angle between A/B is 44.219 (50)°. In (I), S(5) and S(6) ring motifs are present due to H-bondings of O—H···O and O—H···N types (Table 1, Fig. 2). The molecules are dimerized due to bifercated H-bonding of O—H···O type (Table 1, Fig. 2). There exist C—H···π (Table 1) and π···π interactions to stablize the dimmers. A π···π interactions between Cg1···Cg1i [i = -x, 2 - y, 1 - z] at a distance of 3.9101 (15) Å, where Cg1 is centroid of benzene ring (C1—C6) exists. Similarly, there is π···π interactions between Cg2···Cg2ii [il = 1 - x, 1 - y, - z] at a distance of 4.1194 (17) Å, where Cg2 is centroid of benzene ring (C8—C13).
S2. Experimental
Equimolar quantities of 3,4-dichloroanilline and 2,3-dihydroxybenzaldehyde were refluxed in methanol for 2 h. The resulting mixture was evaporated to grow crystals. Red prisms were obtained after 48 h.
S3. Refinement
The H-atoms were positioned geometrically (C–H = 0.93 Å, O—H = 0.82 Å) and refined as riding with Uiso(H) = xUeq(C, O), where x = 1.5 for hydroxy and x = 1.2 for other H-atoms.
Figures
Fig. 1.

View of the title compound with displacement ellipsoids drawn at the 50% probability level.
Fig. 2.

The partial packing (PLATON; Spek, 2009), which shows that molecules form dimers due to O—H···O interactions.
Crystal data
| C13H9Cl2NO2 | Z = 2 |
| Mr = 282.11 | F(000) = 284 |
| Triclinic, P1 | Dx = 1.533 Mg m−3 |
| a = 6.4237 (8) Å | Mo Kα radiation, λ = 0.71073 Å |
| b = 8.8412 (11) Å | Cell parameters from 1866 reflections |
| c = 11.7799 (15) Å | θ = 1.8–27.0° |
| α = 88.606 (6)° | µ = 0.52 mm−1 |
| β = 76.588 (6)° | T = 296 K |
| γ = 70.193 (5)° | Prism, red |
| V = 611.20 (13) Å3 | 0.34 × 0.26 × 0.20 mm |
Data collection
| Bruker Kappa APEXII CCD diffractometer | 2671 independent reflections |
| Radiation source: fine-focus sealed tube | 1866 reflections with I > 2σ(I) |
| Graphite monochromator | Rint = 0.042 |
| Detector resolution: 7.80 pixels mm-1 | θmax = 27.0°, θmin = 1.8° |
| ω scans | h = −8→7 |
| Absorption correction: multi-scan (SADABS; Bruker, 2005) | k = −11→9 |
| Tmin = 0.844, Tmax = 0.902 | l = −14→15 |
| 8896 measured reflections |
Refinement
| 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)] = 0.052 | Hydrogen site location: inferred from neighbouring sites |
| wR(F2) = 0.164 | H-atom parameters constrained |
| S = 1.04 | w = 1/[σ2(Fo2) + (0.0781P)2 + 0.3755P] where P = (Fo2 + 2Fc2)/3 |
| 2671 reflections | (Δ/σ)max < 0.001 |
| 165 parameters | Δρmax = 0.33 e Å−3 |
| 0 restraints | Δρmin = −0.32 e Å−3 |
Special details
| 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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2)
| x | y | z | Uiso*/Ueq | ||
| Cl1 | 0.24642 (15) | 0.26936 (10) | 0.01956 (8) | 0.0657 (3) | |
| Cl2 | 0.73742 (15) | 0.11968 (10) | 0.06575 (9) | 0.0707 (3) | |
| O1 | −0.2559 (3) | 0.9592 (2) | 0.38833 (19) | 0.0508 (5) | |
| H1 | −0.1671 | 0.8794 | 0.3473 | 0.076* | |
| O2 | −0.4973 (3) | 1.2453 (3) | 0.5138 (2) | 0.0594 (6) | |
| H2 | −0.5353 | 1.1679 | 0.5037 | 0.089* | |
| N1 | 0.1345 (4) | 0.7735 (3) | 0.2617 (2) | 0.0452 (6) | |
| C1 | −0.1526 (5) | 1.0707 (3) | 0.3887 (2) | 0.0388 (6) | |
| C2 | −0.2793 (5) | 1.2167 (3) | 0.4525 (2) | 0.0440 (6) | |
| C3 | −0.1834 (5) | 1.3338 (3) | 0.4543 (2) | 0.0478 (7) | |
| H3 | −0.2694 | 1.4313 | 0.4964 | 0.057* | |
| C4 | 0.0401 (5) | 1.3083 (4) | 0.3943 (3) | 0.0516 (7) | |
| H4 | 0.1030 | 1.3886 | 0.3954 | 0.062* | |
| C5 | 0.1694 (5) | 1.1613 (4) | 0.3322 (3) | 0.0494 (7) | |
| H5 | 0.3201 | 1.1427 | 0.2932 | 0.059* | |
| C6 | 0.0738 (5) | 1.0419 (3) | 0.3285 (2) | 0.0409 (6) | |
| C7 | 0.2124 (5) | 0.8875 (3) | 0.2674 (2) | 0.0440 (6) | |
| H7 | 0.3638 | 0.8708 | 0.2309 | 0.053* | |
| C8 | 0.2859 (5) | 0.6190 (3) | 0.2123 (2) | 0.0433 (6) | |
| C9 | 0.2070 (5) | 0.5315 (3) | 0.1462 (2) | 0.0464 (7) | |
| H9 | 0.0614 | 0.5751 | 0.1334 | 0.056* | |
| C10 | 0.3479 (5) | 0.3784 (3) | 0.0998 (2) | 0.0447 (6) | |
| C11 | 0.5634 (5) | 0.3123 (3) | 0.1205 (2) | 0.0471 (7) | |
| C12 | 0.6396 (5) | 0.3969 (4) | 0.1879 (3) | 0.0490 (7) | |
| H12 | 0.7834 | 0.3514 | 0.2027 | 0.059* | |
| C13 | 0.5000 (5) | 0.5513 (3) | 0.2339 (2) | 0.0480 (7) | |
| H13 | 0.5511 | 0.6091 | 0.2793 | 0.058* |
Atomic displacement parameters (Å2)
| U11 | U22 | U33 | U12 | U13 | U23 | |
| Cl1 | 0.0749 (6) | 0.0607 (5) | 0.0663 (5) | −0.0278 (4) | −0.0167 (4) | −0.0188 (4) |
| Cl2 | 0.0675 (6) | 0.0459 (5) | 0.0815 (6) | −0.0049 (4) | −0.0040 (4) | −0.0243 (4) |
| O1 | 0.0505 (11) | 0.0377 (10) | 0.0591 (13) | −0.0162 (9) | 0.0005 (9) | −0.0157 (9) |
| O2 | 0.0502 (12) | 0.0463 (12) | 0.0765 (15) | −0.0184 (10) | 0.0001 (11) | −0.0216 (11) |
| N1 | 0.0488 (13) | 0.0387 (12) | 0.0405 (12) | −0.0089 (10) | −0.0041 (10) | −0.0057 (10) |
| C1 | 0.0451 (14) | 0.0348 (13) | 0.0361 (13) | −0.0133 (11) | −0.0086 (11) | −0.0023 (10) |
| C2 | 0.0503 (16) | 0.0365 (14) | 0.0419 (14) | −0.0111 (12) | −0.0094 (12) | −0.0072 (11) |
| C3 | 0.0619 (18) | 0.0362 (14) | 0.0423 (15) | −0.0117 (13) | −0.0133 (13) | −0.0077 (12) |
| C4 | 0.067 (2) | 0.0455 (16) | 0.0519 (17) | −0.0291 (15) | −0.0173 (15) | 0.0016 (13) |
| C5 | 0.0536 (17) | 0.0495 (16) | 0.0469 (16) | −0.0240 (14) | −0.0058 (13) | −0.0009 (13) |
| C6 | 0.0489 (15) | 0.0346 (13) | 0.0355 (13) | −0.0114 (12) | −0.0070 (11) | −0.0001 (11) |
| C7 | 0.0473 (15) | 0.0405 (14) | 0.0372 (14) | −0.0113 (12) | −0.0016 (11) | −0.0053 (11) |
| C8 | 0.0508 (16) | 0.0365 (14) | 0.0359 (14) | −0.0124 (12) | −0.0007 (12) | −0.0059 (11) |
| C9 | 0.0490 (16) | 0.0435 (15) | 0.0442 (15) | −0.0146 (13) | −0.0073 (12) | −0.0045 (12) |
| C10 | 0.0531 (16) | 0.0436 (15) | 0.0373 (14) | −0.0198 (13) | −0.0051 (12) | −0.0047 (11) |
| C11 | 0.0524 (16) | 0.0396 (14) | 0.0406 (15) | −0.0113 (13) | 0.0001 (12) | −0.0070 (12) |
| C12 | 0.0469 (16) | 0.0486 (16) | 0.0463 (16) | −0.0102 (13) | −0.0094 (13) | −0.0060 (13) |
| C13 | 0.0546 (17) | 0.0455 (16) | 0.0422 (15) | −0.0160 (13) | −0.0089 (13) | −0.0103 (12) |
Geometric parameters (Å, º)
| Cl1—C10 | 1.733 (3) | C4—H4 | 0.9300 |
| Cl2—C11 | 1.731 (3) | C5—C6 | 1.396 (4) |
| O1—C1 | 1.363 (3) | C5—H5 | 0.9300 |
| O1—H1 | 0.8200 | C6—C7 | 1.450 (4) |
| O2—C2 | 1.359 (3) | C7—H7 | 0.9300 |
| O2—H2 | 0.8200 | C8—C13 | 1.383 (4) |
| N1—C7 | 1.277 (4) | C8—C9 | 1.392 (4) |
| N1—C8 | 1.423 (3) | C9—C10 | 1.388 (4) |
| C1—C2 | 1.394 (4) | C9—H9 | 0.9300 |
| C1—C6 | 1.401 (4) | C10—C11 | 1.385 (4) |
| C2—C3 | 1.375 (4) | C11—C12 | 1.373 (4) |
| C3—C4 | 1.390 (4) | C12—C13 | 1.394 (4) |
| C3—H3 | 0.9300 | C12—H12 | 0.9300 |
| C4—C5 | 1.395 (4) | C13—H13 | 0.9300 |
| C1—O1—H1 | 109.5 | N1—C7—C6 | 122.5 (3) |
| C2—O2—H2 | 109.5 | N1—C7—H7 | 118.7 |
| C7—N1—C8 | 119.6 (2) | C6—C7—H7 | 118.7 |
| O1—C1—C2 | 117.8 (2) | C13—C8—C9 | 119.9 (2) |
| O1—C1—C6 | 122.1 (2) | C13—C8—N1 | 122.1 (3) |
| C2—C1—C6 | 120.1 (2) | C9—C8—N1 | 117.9 (3) |
| O2—C2—C3 | 119.1 (2) | C10—C9—C8 | 119.3 (3) |
| O2—C2—C1 | 120.9 (2) | C10—C9—H9 | 120.3 |
| C3—C2—C1 | 120.0 (3) | C8—C9—H9 | 120.3 |
| C2—C3—C4 | 120.9 (3) | C11—C10—C9 | 120.3 (3) |
| C2—C3—H3 | 119.6 | C11—C10—Cl1 | 120.7 (2) |
| C4—C3—H3 | 119.6 | C9—C10—Cl1 | 118.9 (2) |
| C3—C4—C5 | 119.5 (3) | C12—C11—C10 | 120.5 (3) |
| C3—C4—H4 | 120.3 | C12—C11—Cl2 | 118.9 (2) |
| C5—C4—H4 | 120.3 | C10—C11—Cl2 | 120.6 (2) |
| C4—C5—C6 | 120.3 (3) | C11—C12—C13 | 119.5 (3) |
| C4—C5—H5 | 119.8 | C11—C12—H12 | 120.2 |
| C6—C5—H5 | 119.8 | C13—C12—H12 | 120.2 |
| C5—C6—C1 | 119.3 (2) | C8—C13—C12 | 120.4 (3) |
| C5—C6—C7 | 119.8 (3) | C8—C13—H13 | 119.8 |
| C1—C6—C7 | 120.9 (2) | C12—C13—H13 | 119.8 |
| O1—C1—C2—O2 | 1.1 (4) | C1—C6—C7—N1 | 2.5 (4) |
| C6—C1—C2—O2 | −178.3 (3) | C7—N1—C8—C13 | 40.5 (4) |
| O1—C1—C2—C3 | −179.2 (3) | C7—N1—C8—C9 | −143.4 (3) |
| C6—C1—C2—C3 | 1.4 (4) | C13—C8—C9—C10 | −1.9 (4) |
| O2—C2—C3—C4 | 179.0 (3) | N1—C8—C9—C10 | −178.1 (2) |
| C1—C2—C3—C4 | −0.7 (4) | C8—C9—C10—C11 | 1.0 (4) |
| C2—C3—C4—C5 | −0.6 (4) | C8—C9—C10—Cl1 | 179.0 (2) |
| C3—C4—C5—C6 | 1.3 (5) | C9—C10—C11—C12 | 0.5 (4) |
| C4—C5—C6—C1 | −0.7 (4) | Cl1—C10—C11—C12 | −177.5 (2) |
| C4—C5—C6—C7 | −177.7 (3) | C9—C10—C11—Cl2 | 178.5 (2) |
| O1—C1—C6—C5 | 179.9 (3) | Cl1—C10—C11—Cl2 | 0.5 (4) |
| C2—C1—C6—C5 | −0.7 (4) | C10—C11—C12—C13 | −1.1 (4) |
| O1—C1—C6—C7 | −3.1 (4) | Cl2—C11—C12—C13 | −179.1 (2) |
| C2—C1—C6—C7 | 176.3 (3) | C9—C8—C13—C12 | 1.3 (4) |
| C8—N1—C7—C6 | −172.6 (2) | N1—C8—C13—C12 | 177.3 (3) |
| C5—C6—C7—N1 | 179.5 (3) | C11—C12—C13—C8 | 0.2 (4) |
Hydrogen-bond geometry (Å, º)
Cg1 is the centroid of the benzene ring (C1–C6).
| D—H···A | D—H | H···A | D···A | D—H···A |
| O1—H1···N1 | 0.82 | 1.89 | 2.608 (3) | 146 |
| O2—H2···O1 | 0.82 | 2.28 | 2.729 (3) | 115 |
| O2—H2···O1i | 0.82 | 2.20 | 2.846 (3) | 136 |
| C12—H12···Cg1ii | 0.93 | 2.83 | 3.538 (4) | 134 |
Symmetry codes: (i) −x−1, −y+2, −z+1; (ii) x+1, y−1, z.
Footnotes
Supporting information for this paper is available from the IUCr electronic archives (Reference: HB7353).
References
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Associated Data
This section collects any data citations, data availability statements, or supplementary materials included in this article.
Supplementary Materials
Crystal structure: contains datablock(s) global, I. DOI: 10.1107/S2056989015001401/hb7353sup1.cif
Structure factors: contains datablock(s) I. DOI: 10.1107/S2056989015001401/hb7353Isup2.hkl
Supporting information file. DOI: 10.1107/S2056989015001401/hb7353Isup3.cml
. DOI: 10.1107/S2056989015001401/hb7353fig1.tif
View of the title compound with displacement ellipsoids drawn at the 50% probability level.
PLATON . DOI: 10.1107/S2056989015001401/hb7353fig2.tif
The partial packing (PLATON; Spek, 2009), which shows that molecules form dimers due to O—H⋯O interactions.
CCDC reference: 1044861
Additional supporting information: crystallographic information; 3D view; checkCIF report
