organic compounds
4-Amino-N-(4,6-dimethylpyrimidin-2-yl)benzenesulfonamide–2-nitrobenzoic acid (1/1)
aScience and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia
*Correspondence e-mail: g.smith@qut.edu.au
In the 12H14N4O2S·C7H5NO4, the sulfamethazine and 2-nitrobenzoic acid molecules form a heterodimer through intermolecular amide–carboxylic acid N—H⋯O and carboxylic acid–pyrimidine O—H⋯N hydrogen-bond pairs, giving a cyclic motif [graph set R22(8)]. The dihedral angle between the two aromatic ring systems in the sulfamethazine molecule is 88.96 (18)° and the nitro group of the acid is 50% rotationally disordered. Secondary aniline N—H⋯Osulfone hydrogen-bonding associations give a two-dimensional structure lying parallel to the ab plane.
of the title CRelated literature
For background to sulfamethazole as a model for ); Ghosh et al. (2011). For structures of 1:1 adducts of sulfamethazine with nitrobenzoic acid analogues, see: Lynch et al. (2000); Smith & Wermuth (2012). For graph-set analysis, see: Etter et al. (1990).
formation, see: Caira (2007Experimental
Crystal data
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Data collection: CrysAlis PRO (Agilent, 2012); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008) within WinGX (Farrugia, 2012); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: PLATON.
Supporting information
10.1107/S1600536813000779/gg2106sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813000779/gg2106Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536813000779/gg2106Isup3.cml
The title compound was formed in the interaction of 1 mmol quantities of 4-amino-N-(4,6-dimethylpyrimidin-2-yl)benzenesulfonamide (sulfamethazine) and 2-nitrobenzoic acid in 50 ml of 50% ethanol–water with 10 min refluxing. Partial evaporation of the solvent gave a pale yellow solid which gave crystal plates suitable for the X-ray analysis after recrystallization from ethanol.
Hydrogen atoms potentially involved in hydrogen-bonding interactions were located by difference methods but were subsequently allowed to ride in the
with Uiso(H) = 1.2Ueq(N) or 1.5Ueq(O). Other H atoms were included at calculated positions [C—H (aromatic) = 0.93 Å or C—H (methyl) = 0.96 Å] and also treated as riding, with Uiso(H) = 1.2Ueq(C) (aromatic) or 1.5Ueq(C) (methyl). The nitro group was found to be rotationally disordered giving occupancies for the oxygen atoms O21, O22 [S.O.F. = 0.51 (1)] and O23, O24 [0.49 (1)] respectively and these were fixed at 0.50 in the final cycles.Data collection: CrysAlis PRO (Agilent, 2012); cell
CrysAlis PRO (Agilent, 2012); data reduction: CrysAlis PRO (Agilent, 2012); program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008) within WinGX (Farrugia, 2012); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: PLATON (Spek, 2009).C12H14N4O2S·C7H5NO4 | F(000) = 928 |
Mr = 445.46 | Dx = 1.353 Mg m−3 |
Orthorhombic, Pna21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2c -2n | Cell parameters from 3011 reflections |
a = 14.2945 (4) Å | θ = 3.1–28.8° |
b = 8.0115 (3) Å | µ = 0.19 mm−1 |
c = 19.0962 (5) Å | T = 200 K |
V = 2186.91 (12) Å3 | Plate, yellow |
Z = 4 | 0.30 × 0.21 × 0.12 mm |
Oxford Diffraction Gemini-S CCD-detector diffractometer | 2777 independent reflections |
Radiation source: Enhance (Mo) X-ray source | 2587 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.023 |
Detector resolution: 16.077 pixels mm-1 | θmax = 26.0°, θmin = 3.1° |
ω scans | h = −17→9 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2012) | k = −8→9 |
Tmin = 0.964, Tmax = 0.980 | l = −23→8 |
5541 measured reflections |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.040 | H-atom parameters constrained |
wR(F2) = 0.099 | w = 1/[σ2(Fo2) + (0.0555P)2 + 0.5356P] where P = (Fo2 + 2Fc2)/3 |
S = 1.04 | (Δ/σ)max = 0.001 |
2777 reflections | Δρmax = 0.29 e Å−3 |
286 parameters | Δρmin = −0.21 e Å−3 |
29 restraints | Absolute structure: Flack (1983), 565 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.08 (9) |
C12H14N4O2S·C7H5NO4 | V = 2186.91 (12) Å3 |
Mr = 445.46 | Z = 4 |
Orthorhombic, Pna21 | Mo Kα radiation |
a = 14.2945 (4) Å | µ = 0.19 mm−1 |
b = 8.0115 (3) Å | T = 200 K |
c = 19.0962 (5) Å | 0.30 × 0.21 × 0.12 mm |
Oxford Diffraction Gemini-S CCD-detector diffractometer | 2777 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2012) | 2587 reflections with I > 2σ(I) |
Tmin = 0.964, Tmax = 0.980 | Rint = 0.023 |
5541 measured reflections |
R[F2 > 2σ(F2)] = 0.040 | H-atom parameters constrained |
wR(F2) = 0.099 | Δρmax = 0.29 e Å−3 |
S = 1.04 | Δρmin = −0.21 e Å−3 |
2777 reflections | Absolute structure: Flack (1983), 565 Friedel pairs |
286 parameters | Absolute structure parameter: 0.08 (9) |
29 restraints |
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 |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
S1A | 0.44672 (4) | 1.02307 (8) | 0.75273 (5) | 0.0249 (2) | |
O11A | 0.35295 (13) | 0.9968 (3) | 0.72869 (13) | 0.0342 (7) | |
O12A | 0.50151 (14) | 1.1513 (3) | 0.72083 (12) | 0.0326 (7) | |
N1A | 0.47662 (18) | 1.1033 (3) | 0.95152 (15) | 0.0352 (8) | |
N2A | 0.43078 (16) | 1.0714 (3) | 0.83654 (14) | 0.0288 (8) | |
N3A | 0.59047 (17) | 1.0898 (3) | 0.86027 (15) | 0.0334 (8) | |
N41A | 0.65507 (17) | 0.3924 (3) | 0.7489 (2) | 0.0538 (12) | |
C2A | 0.5032 (2) | 1.0887 (4) | 0.88442 (16) | 0.0273 (9) | |
C4A | 0.6585 (2) | 1.1028 (4) | 0.9085 (2) | 0.0392 (11) | |
C5A | 0.6372 (3) | 1.1216 (5) | 0.9787 (2) | 0.0497 (14) | |
C6A | 0.5446 (3) | 1.1221 (5) | 0.99900 (19) | 0.0429 (11) | |
C11A | 0.50792 (17) | 0.8370 (3) | 0.75032 (18) | 0.0262 (8) | |
C21A | 0.60295 (19) | 0.8371 (4) | 0.73347 (16) | 0.0286 (9) | |
C31A | 0.6509 (2) | 0.6892 (4) | 0.73148 (18) | 0.0312 (9) | |
C41A | 0.60616 (19) | 0.5374 (3) | 0.7475 (2) | 0.0324 (9) | |
C42A | 0.7565 (2) | 1.0928 (6) | 0.8819 (3) | 0.0592 (15) | |
C51A | 0.5098 (2) | 0.5407 (4) | 0.76412 (18) | 0.0323 (9) | |
C61A | 0.46169 (19) | 0.6885 (4) | 0.76475 (17) | 0.0289 (9) | |
C62A | 0.5143 (3) | 1.1416 (7) | 1.0737 (2) | 0.0663 (16) | |
O11 | 0.28633 (18) | 0.8862 (4) | 0.90536 (17) | 0.0639 (10) | |
O12 | 0.30259 (17) | 1.0522 (4) | 0.99775 (15) | 0.0505 (9) | |
O21 | 0.2682 (14) | 0.800 (3) | 1.1121 (18) | 0.083 (5) | 0.500 |
O22 | 0.1915 (11) | 1.0471 (16) | 1.1479 (5) | 0.095 (4) | 0.500 |
O23 | 0.1968 (11) | 0.9621 (18) | 1.1692 (5) | 0.095 (4) | 0.500 |
O24 | 0.2837 (14) | 0.842 (3) | 1.1026 (18) | 0.083 (5) | 0.500 |
N2 | 0.2084 (2) | 0.9099 (6) | 1.1124 (2) | 0.0668 (14) | |
C1 | 0.1619 (2) | 0.9013 (4) | 0.98691 (19) | 0.0378 (10) | |
C2 | 0.1370 (2) | 0.8973 (5) | 1.05718 (19) | 0.0408 (11) | |
C3 | 0.0460 (2) | 0.8689 (5) | 1.0792 (2) | 0.0503 (14) | |
C4 | −0.0216 (3) | 0.8434 (6) | 1.0290 (3) | 0.0613 (16) | |
C5 | 0.0011 (3) | 0.8421 (7) | 0.9596 (3) | 0.0680 (18) | |
C6 | 0.0926 (3) | 0.8725 (6) | 0.9385 (2) | 0.0580 (14) | |
C11 | 0.2569 (2) | 0.9455 (5) | 0.95931 (19) | 0.0387 (11) | |
H2A | 0.37560 | 1.03330 | 0.85240 | 0.0350* | |
H5A | 0.68450 | 1.13390 | 1.01170 | 0.0600* | |
H21A | 0.63350 | 0.93690 | 0.72370 | 0.0340* | |
H31A | 0.71390 | 0.68900 | 0.71940 | 0.0380* | |
H41A | 0.71650 | 0.38280 | 0.73590 | 0.0650* | |
H42A | 0.62490 | 0.30460 | 0.75470 | 0.0650* | |
H43A | 0.78730 | 0.99840 | 0.90250 | 0.0890* | |
H44A | 0.78950 | 1.19300 | 0.89420 | 0.0890* | |
H45A | 0.75570 | 1.08070 | 0.83190 | 0.0890* | |
H51A | 0.47880 | 0.44180 | 0.77470 | 0.0390* | |
H61A | 0.39800 | 0.68950 | 0.77480 | 0.0350* | |
H62A | 0.44730 | 1.13730 | 1.07620 | 0.0990* | |
H63A | 0.53580 | 1.24710 | 1.09130 | 0.0990* | |
H64A | 0.54040 | 1.05310 | 1.10130 | 0.0990* | |
H3 | 0.03110 | 0.86720 | 1.12660 | 0.0600* | |
H4 | −0.08350 | 0.82690 | 1.04260 | 0.0740* | |
H5 | −0.04480 | 0.82070 | 0.92630 | 0.0820* | |
H6 | 0.10710 | 0.87350 | 0.89100 | 0.0690* | |
H12 | 0.36150 | 1.06900 | 0.98230 | 0.0760* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1A | 0.0215 (3) | 0.0274 (3) | 0.0259 (3) | 0.0012 (2) | −0.0003 (3) | −0.0001 (4) |
O11A | 0.0246 (10) | 0.0395 (11) | 0.0385 (13) | 0.0037 (8) | −0.0055 (10) | −0.0031 (10) |
O12A | 0.0320 (11) | 0.0301 (11) | 0.0357 (12) | −0.0002 (8) | 0.0019 (10) | 0.0056 (11) |
N1A | 0.0352 (14) | 0.0415 (16) | 0.0289 (14) | −0.0063 (12) | 0.0044 (12) | −0.0024 (13) |
N2A | 0.0196 (12) | 0.0357 (13) | 0.0312 (14) | −0.0001 (10) | 0.0047 (11) | −0.0042 (12) |
N3A | 0.0287 (13) | 0.0381 (15) | 0.0334 (15) | −0.0045 (11) | 0.0021 (12) | −0.0023 (13) |
N41A | 0.0292 (12) | 0.0281 (13) | 0.104 (3) | 0.0001 (10) | 0.0144 (19) | 0.000 (2) |
C2A | 0.0290 (15) | 0.0261 (15) | 0.0267 (16) | −0.0033 (12) | 0.0013 (13) | −0.0014 (13) |
C4A | 0.0333 (17) | 0.0414 (18) | 0.043 (2) | −0.0065 (14) | −0.0031 (17) | −0.0012 (17) |
C5A | 0.047 (2) | 0.063 (3) | 0.039 (2) | −0.0157 (18) | −0.0120 (18) | 0.003 (2) |
C6A | 0.048 (2) | 0.050 (2) | 0.0306 (18) | −0.0159 (17) | 0.0001 (16) | −0.0002 (17) |
C11A | 0.0234 (12) | 0.0310 (14) | 0.0242 (13) | 0.0008 (10) | −0.0014 (14) | −0.0014 (15) |
C21A | 0.0236 (13) | 0.0308 (14) | 0.0314 (17) | −0.0061 (11) | 0.0053 (12) | 0.0009 (13) |
C31A | 0.0209 (13) | 0.0333 (15) | 0.0395 (19) | 0.0001 (11) | 0.0049 (13) | −0.0029 (14) |
C41A | 0.0264 (13) | 0.0318 (14) | 0.0391 (17) | −0.0005 (11) | 0.0013 (17) | 0.0005 (17) |
C42A | 0.0316 (19) | 0.079 (3) | 0.067 (3) | −0.007 (2) | −0.006 (2) | −0.008 (3) |
C51A | 0.0278 (14) | 0.0282 (14) | 0.041 (2) | −0.0072 (11) | 0.0010 (15) | −0.0015 (15) |
C61A | 0.0190 (12) | 0.0346 (15) | 0.033 (2) | −0.0056 (10) | 0.0014 (13) | −0.0021 (14) |
C62A | 0.080 (3) | 0.090 (3) | 0.029 (2) | −0.017 (3) | 0.001 (2) | −0.004 (2) |
O11 | 0.0497 (15) | 0.092 (2) | 0.0499 (18) | −0.0238 (14) | 0.0210 (14) | −0.0240 (17) |
O12 | 0.0360 (13) | 0.0713 (17) | 0.0443 (16) | −0.0111 (12) | 0.0148 (12) | −0.0126 (15) |
O21 | 0.054 (6) | 0.123 (10) | 0.073 (8) | 0.001 (7) | −0.004 (4) | 0.065 (6) |
O22 | 0.060 (3) | 0.186 (12) | 0.039 (5) | −0.011 (7) | 0.000 (5) | −0.033 (6) |
O23 | 0.060 (3) | 0.186 (12) | 0.039 (5) | −0.011 (7) | 0.000 (5) | −0.033 (6) |
O24 | 0.054 (6) | 0.123 (10) | 0.073 (8) | 0.001 (7) | −0.004 (4) | 0.065 (6) |
N2 | 0.0385 (19) | 0.125 (3) | 0.037 (2) | −0.011 (2) | 0.0077 (17) | 0.001 (2) |
C1 | 0.0342 (16) | 0.046 (2) | 0.0333 (18) | −0.0038 (14) | 0.0065 (16) | 0.0044 (17) |
C2 | 0.0335 (17) | 0.052 (2) | 0.037 (2) | −0.0019 (15) | 0.0062 (16) | 0.0041 (17) |
C3 | 0.043 (2) | 0.070 (3) | 0.038 (2) | −0.0094 (18) | 0.0142 (18) | 0.003 (2) |
C4 | 0.036 (2) | 0.088 (3) | 0.060 (3) | −0.020 (2) | 0.010 (2) | −0.001 (3) |
C5 | 0.042 (2) | 0.113 (4) | 0.049 (3) | −0.023 (2) | −0.008 (2) | 0.006 (3) |
C6 | 0.043 (2) | 0.096 (3) | 0.035 (2) | −0.015 (2) | 0.0038 (17) | 0.005 (2) |
C11 | 0.0347 (18) | 0.048 (2) | 0.0335 (19) | −0.0029 (15) | 0.0057 (16) | −0.0002 (17) |
S1A—O11A | 1.432 (2) | C21A—C31A | 1.369 (4) |
S1A—O12A | 1.428 (2) | C31A—C41A | 1.408 (4) |
S1A—N2A | 1.662 (3) | C41A—C51A | 1.414 (4) |
S1A—C11A | 1.729 (2) | C51A—C61A | 1.369 (4) |
O11—C11 | 1.210 (5) | C5A—H5A | 0.9300 |
O12—C11 | 1.302 (5) | C21A—H21A | 0.9300 |
O21—N2 | 1.23 (2) | C31A—H31A | 0.9300 |
O22—N2 | 1.314 (13) | C42A—H45A | 0.9600 |
O23—N2 | 1.174 (11) | C42A—H43A | 0.9600 |
O24—N2 | 1.22 (2) | C42A—H44A | 0.9600 |
O12—H12 | 0.9000 | C51A—H51A | 0.9300 |
N1A—C6A | 1.338 (5) | C61A—H61A | 0.9300 |
N1A—C2A | 1.342 (4) | C62A—H62A | 0.9600 |
N2A—C2A | 1.388 (4) | C62A—H63A | 0.9600 |
N3A—C2A | 1.330 (4) | C62A—H64A | 0.9600 |
N3A—C4A | 1.343 (4) | C1—C6 | 1.375 (5) |
N41A—C41A | 1.356 (3) | C1—C11 | 1.499 (4) |
N2A—H2A | 0.9000 | C1—C2 | 1.389 (5) |
N41A—H41A | 0.9200 | C2—C3 | 1.386 (4) |
N41A—H42A | 0.8300 | C3—C4 | 1.376 (6) |
N2—C2 | 1.471 (5) | C4—C5 | 1.365 (8) |
C4A—C42A | 1.492 (4) | C5—C6 | 1.390 (6) |
C4A—C5A | 1.383 (5) | C3—H3 | 0.9300 |
C5A—C6A | 1.379 (6) | C4—H4 | 0.9300 |
C6A—C62A | 1.499 (5) | C5—H5 | 0.9300 |
C11A—C21A | 1.396 (4) | C6—H6 | 0.9300 |
C11A—C61A | 1.389 (4) | ||
O11A—S1A—O12A | 118.83 (14) | C11A—C21A—H21A | 120.00 |
O11A—S1A—N2A | 102.39 (13) | C31A—C21A—H21A | 120.00 |
O11A—S1A—C11A | 109.77 (13) | C21A—C31A—H31A | 120.00 |
O12A—S1A—N2A | 108.56 (13) | C41A—C31A—H31A | 120.00 |
O12A—S1A—C11A | 109.35 (13) | H43A—C42A—H44A | 109.00 |
N2A—S1A—C11A | 107.21 (15) | C4A—C42A—H44A | 109.00 |
C2A—N1A—C6A | 116.8 (3) | C4A—C42A—H43A | 109.00 |
S1A—N2A—C2A | 123.7 (2) | H44A—C42A—H45A | 109.00 |
C2A—N3A—C4A | 116.2 (3) | H43A—C42A—H45A | 109.00 |
C2A—N2A—H2A | 118.00 | C4A—C42A—H45A | 109.00 |
S1A—N2A—H2A | 111.00 | C61A—C51A—H51A | 120.00 |
C41A—N41A—H41A | 124.00 | C41A—C51A—H51A | 120.00 |
H41A—N41A—H42A | 118.00 | C11A—C61A—H61A | 120.00 |
C41A—N41A—H42A | 117.00 | C51A—C61A—H61A | 120.00 |
O24—N2—C2 | 118.1 (16) | H63A—C62A—H64A | 110.00 |
O23—N2—C2 | 126.1 (8) | C6A—C62A—H62A | 109.00 |
O21—N2—O22 | 137.0 (16) | C6A—C62A—H63A | 109.00 |
O21—N2—C2 | 115.5 (15) | H62A—C62A—H63A | 109.00 |
O22—N2—C2 | 107.4 (7) | H62A—C62A—H64A | 110.00 |
N1A—C2A—N3A | 126.6 (3) | C6A—C62A—H64A | 109.00 |
N1A—C2A—N2A | 115.3 (3) | C2—C1—C11 | 125.3 (3) |
N2A—C2A—N3A | 118.2 (3) | C6—C1—C11 | 117.1 (3) |
N3A—C4A—C5A | 120.9 (3) | C2—C1—C6 | 117.5 (3) |
C5A—C4A—C42A | 122.9 (4) | N2—C2—C3 | 116.4 (3) |
N3A—C4A—C42A | 116.2 (4) | C1—C2—C3 | 122.5 (3) |
C4A—C5A—C6A | 119.0 (4) | N2—C2—C1 | 120.9 (3) |
N1A—C6A—C5A | 120.4 (3) | C2—C3—C4 | 118.2 (4) |
N1A—C6A—C62A | 116.6 (4) | C3—C4—C5 | 120.7 (4) |
C5A—C6A—C62A | 123.0 (4) | C4—C5—C6 | 120.3 (4) |
C21A—C11A—C61A | 120.6 (2) | C1—C6—C5 | 120.8 (4) |
S1A—C11A—C61A | 119.5 (2) | O11—C11—C1 | 121.4 (3) |
S1A—C11A—C21A | 119.9 (2) | O12—C11—C1 | 114.3 (3) |
C11A—C21A—C31A | 119.5 (3) | O11—C11—O12 | 124.3 (3) |
C21A—C31A—C41A | 120.9 (3) | C2—C3—H3 | 121.00 |
C31A—C41A—C51A | 118.4 (2) | C4—C3—H3 | 121.00 |
N41A—C41A—C31A | 120.7 (3) | C3—C4—H4 | 120.00 |
N41A—C41A—C51A | 120.9 (3) | C5—C4—H4 | 120.00 |
C41A—C51A—C61A | 120.5 (3) | C4—C5—H5 | 120.00 |
C11A—C61A—C51A | 120.0 (3) | C6—C5—H5 | 120.00 |
C4A—C5A—H5A | 121.00 | C1—C6—H6 | 120.00 |
C6A—C5A—H5A | 120.00 | C5—C6—H6 | 120.00 |
O11A—S1A—N2A—C2A | 172.1 (2) | O23—N2—C2—C3 | −31.7 (11) |
O12A—S1A—N2A—C2A | −61.5 (3) | O24—N2—C2—C1 | −36.8 (15) |
C11A—S1A—N2A—C2A | 56.6 (3) | O24—N2—C2—C3 | 138.5 (14) |
O11A—S1A—C11A—C21A | 145.0 (3) | O22—N2—C2—C3 | −67.6 (7) |
O11A—S1A—C11A—C61A | −34.6 (3) | O23—N2—C2—C1 | 153.1 (9) |
O12A—S1A—C11A—C21A | 13.0 (3) | C42A—C4A—C5A—C6A | −177.1 (4) |
O12A—S1A—C11A—C61A | −166.6 (3) | N3A—C4A—C5A—C6A | 1.8 (5) |
N2A—S1A—C11A—C21A | −104.5 (3) | C4A—C5A—C6A—N1A | 0.5 (6) |
N2A—S1A—C11A—C61A | 75.9 (3) | C4A—C5A—C6A—C62A | 180.0 (4) |
O24—O21—N2—O23 | −106 (6) | C61A—C11A—C21A—C31A | −0.3 (5) |
O24—O21—N2—C2 | 102 (6) | S1A—C11A—C61A—C51A | −178.9 (3) |
O24—O21—N2—O22 | −74 (7) | S1A—C11A—C21A—C31A | −179.8 (3) |
O23—O22—N2—C2 | 127.6 (15) | C21A—C11A—C61A—C51A | 1.5 (5) |
O23—O22—N2—O21 | −56 (3) | C11A—C21A—C31A—C41A | −1.2 (5) |
O23—O22—N2—O24 | −82 (3) | C21A—C31A—C41A—N41A | −176.6 (3) |
O22—O23—N2—C2 | −69.3 (18) | C21A—C31A—C41A—C51A | 1.5 (5) |
O22—O23—N2—O24 | 120 (2) | C31A—C41A—C51A—C61A | −0.2 (5) |
O22—O23—N2—O21 | 142.5 (18) | N41A—C41A—C51A—C61A | 177.9 (3) |
O21—O24—N2—O22 | 124 (5) | C41A—C51A—C61A—C11A | −1.3 (5) |
O21—O24—N2—O23 | 83 (6) | C6—C1—C2—N2 | 173.8 (4) |
O21—O24—N2—C2 | −88 (6) | C6—C1—C2—C3 | −1.2 (6) |
C2A—N1A—C6A—C62A | 178.9 (4) | C11—C1—C2—N2 | −10.5 (6) |
C6A—N1A—C2A—N2A | −179.3 (3) | C11—C1—C2—C3 | 174.5 (4) |
C6A—N1A—C2A—N3A | 0.5 (5) | C2—C1—C6—C5 | 0.6 (6) |
C2A—N1A—C6A—C5A | −1.7 (5) | C11—C1—C6—C5 | −175.6 (4) |
S1A—N2A—C2A—N1A | −170.5 (2) | C2—C1—C11—O11 | 149.7 (4) |
S1A—N2A—C2A—N3A | 9.7 (4) | C2—C1—C11—O12 | −30.9 (5) |
C4A—N3A—C2A—N2A | −178.5 (3) | C6—C1—C11—O11 | −34.5 (5) |
C2A—N3A—C4A—C5A | −2.9 (5) | C6—C1—C11—O12 | 144.8 (4) |
C4A—N3A—C2A—N1A | 1.8 (5) | N2—C2—C3—C4 | −175.0 (4) |
C2A—N3A—C4A—C42A | 176.1 (3) | C1—C2—C3—C4 | 0.2 (6) |
O21—N2—C2—C3 | 115.3 (15) | C2—C3—C4—C5 | 1.6 (7) |
O22—N2—C2—C1 | 117.1 (7) | C3—C4—C5—C6 | −2.3 (8) |
O21—N2—C2—C1 | −60.0 (15) | C4—C5—C6—C1 | 1.2 (8) |
D—H···A | D—H | H···A | D···A | D—H···A |
O12—H12···N1A | 0.90 | 1.77 | 2.671 (4) | 180 |
N2A—H2A···O11 | 0.90 | 2.01 | 2.862 (4) | 158 |
N41A—H41A···O11Ai | 0.92 | 2.18 | 2.990 (3) | 147 |
N41A—H42A···O12Aii | 0.83 | 2.24 | 2.973 (3) | 146 |
C3—H3···O12Aiii | 0.93 | 2.54 | 3.289 (4) | 138 |
C21A—H21A···O12A | 0.93 | 2.55 | 2.915 (4) | 104 |
C31A—H31A···O11Ai | 0.93 | 2.49 | 3.250 (4) | 139 |
C51A—H51A···O12Aii | 0.93 | 2.57 | 3.230 (4) | 129 |
Symmetry codes: (i) x+1/2, −y+3/2, z; (ii) x, y−1, z; (iii) −x+1/2, y−1/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C12H14N4O2S·C7H5NO4 |
Mr | 445.46 |
Crystal system, space group | Orthorhombic, Pna21 |
Temperature (K) | 200 |
a, b, c (Å) | 14.2945 (4), 8.0115 (3), 19.0962 (5) |
V (Å3) | 2186.91 (12) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.19 |
Crystal size (mm) | 0.30 × 0.21 × 0.12 |
Data collection | |
Diffractometer | Oxford Diffraction Gemini-S CCD-detector diffractometer |
Absorption correction | Multi-scan (CrysAlis PRO; Agilent, 2012) |
Tmin, Tmax | 0.964, 0.980 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5541, 2777, 2587 |
Rint | 0.023 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.040, 0.099, 1.04 |
No. of reflections | 2777 |
No. of parameters | 286 |
No. of restraints | 29 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.29, −0.21 |
Absolute structure | Flack (1983), 565 Friedel pairs |
Absolute structure parameter | 0.08 (9) |
Computer programs: CrysAlis PRO (Agilent, 2012), SIR92 (Altomare et al., 1993), SHELXL97 (Sheldrick, 2008) within WinGX (Farrugia, 2012), PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
O12—H12···N1A | 0.90 | 1.77 | 2.671 (4) | 180 |
N2A—H2A···O11 | 0.90 | 2.01 | 2.862 (4) | 158 |
N41A—H41A···O11Ai | 0.92 | 2.18 | 2.990 (3) | 147 |
N41A—H42A···O12Aii | 0.83 | 2.24 | 2.973 (3) | 146 |
Symmetry codes: (i) x+1/2, −y+3/2, z; (ii) x, y−1, z. |
Acknowledgements
The authors acknowledge financial support from the Australian Reseach Council and the Science and Engineering Faculty and the University Library, Queensland University of Technology.
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.
The drug sulfamethazine [4-amino-N-(4,6-dimethylpyrimidin-2-yl)benzenesulfonamide] has been used as a model for co-crystal formation (Caira, 2007; Ghosh et al., 2011)), commonly forming 1:1 adducts with carboxylic acids and amides, particularly the benzoic acid analogues. The structures of a number of these are known, including those with 4-nitrobenzoic acid (Smith & Wermuth, 2012) and 2,4-dinitrobenzoic acid (Lynch et al., 2000). In these co-crystals, and in sulfamethazine adducts generally a common structural feature is the cyclic heterodimeric hydrogen-bonding association involving amide N—H···Ocarboxyl–carboxylic acid O—H···Npyrimidine pairs [graph set R22(8) (Etter et al., 1990)].
Our 1:1 stoichiometric interaction of sulfamethazine with 2-nitrobenzoic acid gave the co-crystalline adduct C12H14N4O2S. C7H5NO4, the title compound and the structure is reported herein. In the sulfamethazine component (Fig. 1) the dihedral angle between the pyrimidine ring and the phenyl ring is 89.98 (18)° which compares with 82.33 (9)° and 78.77 (8)° for the two independent molecules in the 4-nitrobenzoic acid analogue (Smith & Wermuth, 2012). The angles between these two rings and the phenyl ring of the 2-nitrobenzoic acid molecule are 9.65 (19) and 88.22 (19)°, respectively. In the crystal the sulfamethazine and 2-nitrobenzoic acid molecules interact as previously described, giving cyclic R22(8) hydrogen-bonded heterodimers (Table 1, Fig. 1).
Intermolecular amine N—H···Osulfone hydrogen-bonding interactions link the heterodimer units along a (Fig. 2) as well as down b, forming two-dimensional sheet structures which extend along [110]. Unlike the isomeric 4-nitrobenzoic acid adduct there are no π–π interactions present in the structure but there are 52.2 Å3 potential solvent accessible voids present. The oxygen atoms of the nitro group of the adduct acid molecule are rotationally disordered over four 50% occupancy sites [O21, O22 and O23, O24]. In the absence of chirality in the molecules, the Flack absolute structure parameter [0.08 (9)] is of no structural significance.