organic compounds
2-Chloro-5-(2-iodobenzenesulfonamido)benzoic acid
aGovernment College University, Department of Chemistry, Lahore, Pakistan, bUniversity of Sargodha, Department of Physics, Sagrodha, Pakistan, and cUniversity of Sargodha, Department of Chemistry, Sagrodha, Pakistan
*Correspondence e-mail: dmntahir_uos@yahoo.com
In the molecule of the title compound, C13H9ClINO4S, the coordination around the S atom is distorted tetrahedral. The aromatic rings are oriented at a dihedral angle of 74.46 (9)°. Intramolecular C—H⋯O hydrogen bonds result in the formation of two five- and one six-membered rings, which adopt planar, envelope and twisted conformations, respectively. In the intermolecular N—H⋯O and O—H⋯O hydrogen bonds link the molecules to form R22(8) ring motifs, which are further linked by C—H⋯O hydrogen bonds. π–π contacts between the benzene rings [centroid–centroid distances = 3.709 (3) and 3.772 (3) Å] may further stabilize the structure. The I atom is disordered over two positions, refined with occupancies of ca 0.75 and 0.25.
Related literature
For related structures, see: Arshad, Tahir, Khan, Ahmad & Shafiq (2008); Arshad, Tahir, Khan, Shafiq & Siddiqui (2008); Arshad et al. (2009); Deng & Mani (2006). For ring motifs, see: Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2003); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON.
Supporting information
10.1107/S1600536808043869/hk2607sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808043869/hk2607Isup2.hkl
The title compound was synthesized according to a literature method (Deng & Mani, 2006). 5-Amino-2-chlorobenzoic acid (0.28 g, 1.66 mmol) was suspended in distilled water (10 ml) in a round bottom flask. The pH of the solution was adjusted to 8-9 using Na2CO3 (1 M). Then, 2-iodobenzene sulfonyl chloride (0.5 g, 1.66 mmol) was added, and stirred at room temperature. The reaction pH was maintained at 8-9. Completion of reaction was indicated by the dissolvation of the suspended 2-iodobenzene sulfonyl chloride. Then, pH was adjusted to 2-3 using HCl (2 N). The precipitate formed was filtered, washed with distilled water, and then recrystalyzed in methanol.
The iodine atom was disordered over two positions. During the
process the disordered atoms I1A and I1B were refined with occupancies of 0.75 and 0.25, respectively. H3O (for OH) atom was located in difference syntheses and refined [O-H = 0.76 (4) Å, Uiso(H) = 1.2Ueq(O)]. The remaining H atoms were positioned geometrically, with N-H = 0.86 Å (for NH) and C-H = 0.93 Å for aromatic H, respectively, and constrained to ride on their parent atoms with Uiso(H) = 1.2Ueq(C,N).Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2003); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2003).C13H9ClINO4S | F(000) = 1696 |
Mr = 437.62 | Dx = 1.928 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 3738 reflections |
a = 26.6375 (9) Å | θ = 2.5–28.3° |
b = 8.5532 (2) Å | µ = 2.45 mm−1 |
c = 14.2696 (5) Å | T = 296 K |
β = 111.923 (2)° | Needle, light brown |
V = 3016.03 (17) Å3 | 0.25 × 0.12 × 0.08 mm |
Z = 8 |
Bruker Kappa APEXII CCD diffractometer | 3738 independent reflections |
Radiation source: fine-focus sealed tube | 2909 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.023 |
Detector resolution: 7.40 pixels mm-1 | θmax = 28.3°, θmin = 2.5° |
ω scans | h = −34→35 |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | k = −11→11 |
Tmin = 0.708, Tmax = 0.819 | l = −18→18 |
16794 measured reflections |
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)] = 0.026 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.069 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0301P)2 + 3.5121P] where P = (Fo2 + 2Fc2)/3 |
3738 reflections | (Δ/σ)max = 0.002 |
203 parameters | Δρmax = 0.54 e Å−3 |
0 restraints | Δρmin = −0.31 e Å−3 |
C13H9ClINO4S | V = 3016.03 (17) Å3 |
Mr = 437.62 | Z = 8 |
Monoclinic, C2/c | Mo Kα radiation |
a = 26.6375 (9) Å | µ = 2.45 mm−1 |
b = 8.5532 (2) Å | T = 296 K |
c = 14.2696 (5) Å | 0.25 × 0.12 × 0.08 mm |
β = 111.923 (2)° |
Bruker Kappa APEXII CCD diffractometer | 3738 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 2909 reflections with I > 2σ(I) |
Tmin = 0.708, Tmax = 0.819 | Rint = 0.023 |
16794 measured reflections |
R[F2 > 2σ(F2)] = 0.026 | 0 restraints |
wR(F2) = 0.069 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.54 e Å−3 |
3738 reflections | Δρmin = −0.31 e Å−3 |
203 parameters |
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles |
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 | Occ. (<1) | |
I1A | 0.12215 (4) | 0.55411 (16) | 0.41289 (12) | 0.0562 (2) | 0.750 |
I1B | 0.12364 (17) | 0.5371 (5) | 0.4021 (4) | 0.0789 (10) | 0.250 |
Cl1 | −0.04930 (3) | 1.21242 (9) | 0.10878 (7) | 0.0669 (3) | |
S1 | 0.16694 (2) | 0.68574 (6) | 0.21704 (5) | 0.0391 (2) | |
O1 | 0.18866 (8) | 0.7712 (2) | 0.15530 (16) | 0.0565 (7) | |
O2 | 0.18272 (7) | 0.52454 (19) | 0.23828 (15) | 0.0482 (6) | |
O3 | 0.13053 (10) | 1.2455 (2) | 0.1957 (2) | 0.0776 (9) | |
O4 | 0.05294 (9) | 1.3743 (2) | 0.13943 (18) | 0.0690 (8) | |
N1 | 0.10171 (8) | 0.6828 (2) | 0.16552 (17) | 0.0441 (7) | |
C1 | 0.18390 (9) | 0.7924 (3) | 0.33142 (18) | 0.0361 (7) | |
C2 | 0.16797 (10) | 0.7500 (3) | 0.4100 (2) | 0.0418 (8) | |
C3 | 0.18262 (12) | 0.8446 (4) | 0.4949 (2) | 0.0556 (10) | |
C4 | 0.21208 (13) | 0.9786 (4) | 0.5010 (3) | 0.0624 (11) | |
C5 | 0.22800 (12) | 1.0202 (3) | 0.4236 (3) | 0.0578 (10) | |
C6 | 0.21433 (10) | 0.9275 (3) | 0.3391 (2) | 0.0453 (8) | |
C7 | 0.06742 (10) | 0.8137 (2) | 0.15009 (18) | 0.0371 (7) | |
C8 | 0.08656 (10) | 0.9658 (2) | 0.15617 (19) | 0.0402 (7) | |
C9 | 0.05220 (10) | 1.0940 (3) | 0.14506 (18) | 0.0394 (7) | |
C10 | −0.00221 (11) | 1.0655 (3) | 0.12406 (19) | 0.0436 (8) | |
C11 | −0.02139 (11) | 0.9137 (3) | 0.1157 (2) | 0.0490 (8) | |
C12 | 0.01314 (10) | 0.7883 (3) | 0.1292 (2) | 0.0451 (8) | |
C13 | 0.07726 (12) | 1.2528 (3) | 0.1587 (2) | 0.0456 (8) | |
H1 | 0.08656 | 0.59352 | 0.14579 | 0.0529* | |
H3 | 0.17239 | 0.81700 | 0.54829 | 0.0667* | |
H3O | 0.1464 (16) | 1.322 (5) | 0.207 (3) | 0.0931* | |
H4 | 0.22130 | 1.04151 | 0.55811 | 0.0749* | |
H5 | 0.24800 | 1.11102 | 0.42821 | 0.0695* | |
H6 | 0.22545 | 0.95503 | 0.28681 | 0.0544* | |
H8 | 0.12289 | 0.98281 | 0.16784 | 0.0482* | |
H11 | −0.05802 | 0.89606 | 0.10069 | 0.0588* | |
H12 | −0.00012 | 0.68681 | 0.12427 | 0.0541* |
U11 | U22 | U33 | U12 | U13 | U23 | |
I1A | 0.0535 (3) | 0.0462 (3) | 0.0796 (5) | −0.0084 (2) | 0.0373 (3) | 0.0109 (4) |
I1B | 0.106 (2) | 0.0709 (18) | 0.0809 (13) | −0.0395 (13) | 0.0591 (12) | −0.0108 (9) |
Cl1 | 0.0705 (5) | 0.0508 (4) | 0.0822 (5) | 0.0268 (3) | 0.0318 (4) | 0.0054 (4) |
S1 | 0.0453 (3) | 0.0250 (3) | 0.0528 (4) | 0.0010 (2) | 0.0250 (3) | −0.0009 (2) |
O1 | 0.0748 (13) | 0.0452 (10) | 0.0659 (13) | −0.0060 (9) | 0.0452 (11) | −0.0017 (9) |
O2 | 0.0482 (10) | 0.0272 (8) | 0.0719 (13) | 0.0059 (7) | 0.0255 (9) | −0.0022 (8) |
O3 | 0.0640 (15) | 0.0245 (9) | 0.140 (2) | −0.0043 (9) | 0.0331 (15) | −0.0062 (11) |
O4 | 0.0735 (14) | 0.0240 (9) | 0.0982 (17) | 0.0068 (9) | 0.0190 (12) | 0.0050 (9) |
N1 | 0.0451 (11) | 0.0202 (8) | 0.0602 (14) | 0.0000 (8) | 0.0119 (10) | −0.0022 (8) |
C1 | 0.0333 (11) | 0.0271 (10) | 0.0489 (14) | 0.0007 (8) | 0.0166 (10) | 0.0000 (9) |
C2 | 0.0379 (13) | 0.0389 (12) | 0.0531 (15) | 0.0018 (10) | 0.0221 (11) | 0.0042 (11) |
C3 | 0.0577 (17) | 0.0623 (18) | 0.0538 (17) | 0.0023 (14) | 0.0290 (14) | −0.0012 (13) |
C4 | 0.0660 (19) | 0.0542 (17) | 0.0633 (19) | −0.0021 (14) | 0.0198 (16) | −0.0204 (14) |
C5 | 0.0598 (18) | 0.0364 (14) | 0.073 (2) | −0.0110 (12) | 0.0200 (16) | −0.0077 (13) |
C6 | 0.0444 (14) | 0.0344 (12) | 0.0583 (16) | −0.0061 (10) | 0.0205 (12) | 0.0012 (11) |
C7 | 0.0459 (13) | 0.0241 (10) | 0.0378 (12) | 0.0028 (9) | 0.0115 (10) | 0.0001 (9) |
C8 | 0.0458 (13) | 0.0255 (10) | 0.0476 (14) | 0.0015 (9) | 0.0155 (11) | 0.0015 (9) |
C9 | 0.0551 (15) | 0.0246 (10) | 0.0376 (13) | 0.0035 (9) | 0.0163 (11) | 0.0014 (9) |
C10 | 0.0545 (15) | 0.0362 (12) | 0.0398 (13) | 0.0129 (10) | 0.0172 (11) | 0.0012 (10) |
C11 | 0.0456 (14) | 0.0440 (14) | 0.0541 (16) | 0.0017 (11) | 0.0147 (12) | −0.0001 (12) |
C12 | 0.0465 (14) | 0.0310 (11) | 0.0539 (15) | −0.0024 (10) | 0.0143 (12) | 0.0006 (10) |
C13 | 0.0632 (17) | 0.0253 (11) | 0.0490 (15) | 0.0040 (10) | 0.0218 (13) | 0.0007 (10) |
I1A—C2 | 2.082 (3) | C4—C5 | 1.370 (5) |
I1B—C2 | 2.150 (5) | C5—C6 | 1.374 (4) |
Cl1—C10 | 1.731 (3) | C7—C12 | 1.380 (4) |
S1—O1 | 1.423 (2) | C7—C8 | 1.388 (3) |
S1—O2 | 1.4403 (17) | C8—C9 | 1.399 (3) |
S1—N1 | 1.614 (2) | C9—C10 | 1.388 (4) |
S1—C1 | 1.775 (3) | C9—C13 | 1.494 (4) |
O3—C13 | 1.318 (4) | C10—C11 | 1.384 (4) |
O4—C13 | 1.201 (3) | C11—C12 | 1.379 (4) |
O3—H3O | 0.76 (4) | C3—H3 | 0.9300 |
N1—C7 | 1.409 (3) | C4—H4 | 0.9300 |
N1—H1 | 0.8600 | C5—H5 | 0.9300 |
C1—C6 | 1.392 (4) | C6—H6 | 0.9300 |
C1—C2 | 1.387 (4) | C8—H8 | 0.9300 |
C2—C3 | 1.386 (4) | C11—H11 | 0.9300 |
C3—C4 | 1.373 (5) | C12—H12 | 0.9300 |
I1A···O2 | 3.446 (2) | C1···C8 | 3.215 (3) |
I1A···N1 | 3.540 (3) | C2···C4ii | 3.552 (5) |
I1A···Cl1i | 3.4575 (16) | C4···C2ii | 3.552 (5) |
I1A···C5ii | 3.851 (4) | C4···O1x | 3.293 (4) |
I1B···O2 | 3.271 (6) | C5···I1Aii | 3.851 (4) |
I1B···N1 | 3.438 (6) | C5···I1Bii | 3.835 (6) |
I1B···C5ii | 3.835 (6) | C6···C8 | 3.445 (4) |
I1B···Cl1i | 3.381 (5) | C6···O2xi | 3.419 (3) |
I1A···H12iii | 3.2900 | C7···Cl1v | 3.549 (3) |
I1A···H11iii | 3.3600 | C8···O1 | 3.193 (3) |
Cl1···O4 | 2.939 (3) | C8···C6 | 3.445 (4) |
Cl1···I1Aiv | 3.4575 (16) | C8···C1 | 3.215 (3) |
Cl1···I1Biv | 3.381 (5) | C9···C11v | 3.499 (4) |
Cl1···C7v | 3.549 (3) | C10···C10iii | 3.552 (4) |
S1···H3Ovi | 3.15 (4) | C11···C11iii | 3.568 (4) |
S1···H8 | 2.7800 | C11···C9v | 3.499 (4) |
O1···C8 | 3.193 (3) | C1···H8 | 2.8100 |
O1···C4vii | 3.293 (4) | C6···H8 | 2.7700 |
O2···O3vi | 2.714 (3) | C13···H1ix | 2.9400 |
O2···I1B | 3.271 (6) | H1···O4vi | 2.0700 |
O2···I1A | 3.446 (2) | H1···C13vi | 2.9400 |
O2···C6viii | 3.419 (3) | H1···H12 | 2.3500 |
O3···O2ix | 2.714 (3) | H3···O3x | 2.7800 |
O4···N1ix | 2.903 (3) | H3O···S1ix | 3.15 (4) |
O4···Cl1 | 2.939 (3) | H3O···O2ix | 1.95 (4) |
O1···H8 | 2.5700 | H4···O1x | 2.4800 |
O1···H4vii | 2.4800 | H5···O1xi | 2.7600 |
O1···H6 | 2.3600 | H6···O1 | 2.3600 |
O1···H5viii | 2.7600 | H6···O2xi | 2.6700 |
O2···H6viii | 2.6700 | H8···S1 | 2.7800 |
O2···H3Ovi | 1.95 (4) | H8···O1 | 2.5700 |
O3···H3vii | 2.7800 | H8···O3 | 2.2800 |
O3···H8 | 2.2800 | H8···C1 | 2.8100 |
O4···H1ix | 2.0700 | H8···C6 | 2.7700 |
N1···I1A | 3.540 (3) | H11···I1Aiii | 3.3600 |
N1···I1B | 3.438 (6) | H12···H1 | 2.3500 |
N1···O4vi | 2.903 (3) | H12···I1Aiii | 3.2900 |
O1—S1—O2 | 117.89 (12) | C8—C9—C10 | 118.2 (2) |
O1—S1—N1 | 110.08 (12) | C8—C9—C13 | 117.2 (2) |
O1—S1—C1 | 106.41 (12) | C10—C9—C13 | 124.6 (2) |
O2—S1—N1 | 105.12 (11) | Cl1—C10—C9 | 123.3 (2) |
O2—S1—C1 | 110.15 (12) | Cl1—C10—C11 | 116.3 (2) |
N1—S1—C1 | 106.73 (12) | C9—C10—C11 | 120.4 (3) |
C13—O3—H3O | 118 (3) | C10—C11—C12 | 120.8 (3) |
S1—N1—C7 | 125.69 (16) | C7—C12—C11 | 119.9 (2) |
C7—N1—H1 | 117.00 | O3—C13—O4 | 122.7 (3) |
S1—N1—H1 | 117.00 | O3—C13—C9 | 111.8 (2) |
S1—C1—C6 | 116.10 (19) | O4—C13—C9 | 125.5 (3) |
S1—C1—C2 | 124.0 (2) | C2—C3—H3 | 120.00 |
C2—C1—C6 | 119.9 (2) | C4—C3—H3 | 120.00 |
I1A—C2—C1 | 125.8 (2) | C3—C4—H4 | 120.00 |
I1A—C2—C3 | 115.4 (2) | C5—C4—H4 | 120.00 |
C1—C2—C3 | 118.9 (3) | C4—C5—H5 | 120.00 |
I1B—C2—C1 | 120.5 (2) | C6—C5—H5 | 120.00 |
I1B—C2—C3 | 120.7 (3) | C1—C6—H6 | 120.00 |
C2—C3—C4 | 120.7 (3) | C5—C6—H6 | 120.00 |
C3—C4—C5 | 120.5 (3) | C7—C8—H8 | 119.00 |
C4—C5—C6 | 119.8 (3) | C9—C8—H8 | 119.00 |
C1—C6—C5 | 120.3 (3) | C10—C11—H11 | 120.00 |
C8—C7—C12 | 119.5 (2) | C12—C11—H11 | 120.00 |
N1—C7—C8 | 122.2 (2) | C7—C12—H12 | 120.00 |
N1—C7—C12 | 118.31 (19) | C11—C12—H12 | 120.00 |
C7—C8—C9 | 121.2 (3) | ||
O1—S1—N1—C7 | −65.6 (2) | C3—C4—C5—C6 | 0.1 (5) |
O2—S1—N1—C7 | 166.5 (2) | C4—C5—C6—C1 | 0.7 (5) |
C1—S1—N1—C7 | 49.5 (2) | N1—C7—C8—C9 | −177.1 (2) |
O1—S1—C1—C2 | 177.4 (2) | C12—C7—C8—C9 | 2.3 (4) |
O1—S1—C1—C6 | −1.6 (2) | N1—C7—C12—C11 | 178.7 (2) |
O2—S1—C1—C2 | −53.8 (3) | C8—C7—C12—C11 | −0.7 (4) |
O2—S1—C1—C6 | 127.3 (2) | C7—C8—C9—C10 | −2.3 (4) |
N1—S1—C1—C2 | 59.8 (3) | C7—C8—C9—C13 | 176.6 (2) |
N1—S1—C1—C6 | −119.1 (2) | C8—C9—C10—Cl1 | 179.79 (19) |
S1—N1—C7—C8 | 15.6 (4) | C8—C9—C10—C11 | 0.8 (4) |
S1—N1—C7—C12 | −163.8 (2) | C13—C9—C10—Cl1 | 1.0 (4) |
S1—C1—C2—I1A | 0.7 (4) | C13—C9—C10—C11 | −178.1 (2) |
S1—C1—C2—C3 | −178.5 (2) | C8—C9—C13—O3 | −10.3 (3) |
C6—C1—C2—I1A | 179.6 (2) | C8—C9—C13—O4 | 170.0 (3) |
C6—C1—C2—C3 | 0.4 (4) | C10—C9—C13—O3 | 168.5 (3) |
S1—C1—C6—C5 | 178.0 (2) | C10—C9—C13—O4 | −11.2 (4) |
C2—C1—C6—C5 | −0.9 (4) | Cl1—C10—C11—C12 | −178.3 (2) |
I1A—C2—C3—C4 | −178.9 (3) | C9—C10—C11—C12 | 0.8 (4) |
C1—C2—C3—C4 | 0.4 (5) | C10—C11—C12—C7 | −0.8 (4) |
C2—C3—C4—C5 | −0.7 (5) |
Symmetry codes: (i) −x, y−1, −z+1/2; (ii) −x+1/2, −y+3/2, −z+1; (iii) −x, y, −z+1/2; (iv) −x, y+1, −z+1/2; (v) −x, −y+2, −z; (vi) x, y−1, z; (vii) x, −y+2, z−1/2; (viii) −x+1/2, y−1/2, −z+1/2; (ix) x, y+1, z; (x) x, −y+2, z+1/2; (xi) −x+1/2, y+1/2, −z+1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O4vi | 0.86 | 2.07 | 2.903 (3) | 164 |
O3—H3O···O2ix | 0.76 (4) | 1.95 (4) | 2.714 (3) | 176 (5) |
C4—H4···O1x | 0.93 | 2.48 | 3.293 (4) | 146 |
C6—H6···O1 | 0.93 | 2.36 | 2.792 (3) | 108 |
C8—H8···O1 | 0.93 | 2.57 | 3.193 (3) | 125 |
C8—H8···O3 | 0.93 | 2.28 | 2.631 (3) | 102 |
Symmetry codes: (vi) x, y−1, z; (ix) x, y+1, z; (x) x, −y+2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C13H9ClINO4S |
Mr | 437.62 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 296 |
a, b, c (Å) | 26.6375 (9), 8.5532 (2), 14.2696 (5) |
β (°) | 111.923 (2) |
V (Å3) | 3016.03 (17) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 2.45 |
Crystal size (mm) | 0.25 × 0.12 × 0.08 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.708, 0.819 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 16794, 3738, 2909 |
Rint | 0.023 |
(sin θ/λ)max (Å−1) | 0.666 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.026, 0.069, 1.05 |
No. of reflections | 3738 |
No. of parameters | 203 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.54, −0.31 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2003), WinGX (Farrugia, 1999) and PLATON (Spek, 2003).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O4i | 0.86 | 2.07 | 2.903 (3) | 164 |
O3—H3O···O2ii | 0.76 (4) | 1.95 (4) | 2.714 (3) | 176 (5) |
C4—H4···O1iii | 0.93 | 2.48 | 3.293 (4) | 146 |
C6—H6···O1 | 0.93 | 2.36 | 2.792 (3) | 108 |
C8—H8···O1 | 0.93 | 2.57 | 3.193 (3) | 125 |
C8—H8···O3 | 0.93 | 2.28 | 2.631 (3) | 102 |
Symmetry codes: (i) x, y−1, z; (ii) x, y+1, z; (iii) x, −y+2, z+1/2. |
Acknowledgements
MNA gratefully acknowledges the Higher Education Commision, Islamabad, Pakistan, for providing a scholarship under the Indigenous PhD Program (PIN 042-120607-PS2-183).
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
In continuation to our researches with sulfonamides (Arshad, Tahir, Khan, Ahmad & Shafiq, 2008; Arshad, Tahir, Khan, Shafiq & Siddiqui, 2008; Arshad et al., 2009), the title compound has been synthesized, and we report herein its crystal structure.
The structure of the title compound, (I), (Fig 1), differs from 4-[(2-iodo- phenyl)sulfonyl]aminobenzoic acid hydrate, (II) (Arshad et al., 2009), due to the attachment of Cl atom and the change of the position of carboxylate group. Also in (I), there is no water molecule. The coordination around the S atom is a distorted tetrahedral. Rings A(C1-C6) and B(C7-C12) are oriented at a dihedral angle of 74.46 (9)°, which is nearly the same with the corresponding value [74.18 (17)°] in (II). The intramolecular C-H···O hydrogen bonds (Table 1) result in the formations of two five- and one six-membered rings: C (S1/O1/C1/C6/H6), D (O3/C8/C9/C13/H8) and E (S1/O1/N1/C7/C8/H8). Ring C is planar. Ring D adopts envelope conformation with O3 atom displaced by -0.260 (4) Å from the plane of the other rings atoms, while ring E has twisted conformation. The dihedral angle between rings A and C is 2.18 (3)°.
In the crystal structure, intermolecular N-H···O and O-H···O hydrogen bonds (Table 1) link the molecules to form R22(8) ring motifs (Bernstein et al., 1995), they are further linked by C-H···O hydrogen bonds (Table 1, Fig. 2), in which they may be effective in the stabilization of the structure. The π-π contacts between the phenyl rings and the benzene rings, Cg1—Cg1i and Cg2—Cg2ii [symmetry codes: (i) 1/2 - x, 3/2 - y, 1 - z; (ii) -x, 2 - y, -z, where Cg1 and Cg2 are centroids of the rings A (C1-C6) and B(C7-C12), respectively] may further stabilize the structure, with centroid-centroid distances of 3.709 (3) Å and 3.772 (3) Å.