organic compounds
4-(4-Methylbenzenesulfonamido)benzoic acid N,N-dimethylformamide monosolvate
aCollege of Chemistry and Science of Life, Quanzhou Normal University, Fujian 362000, People's Republic of China
*Correspondence e-mail: hml301@163.com
In the title compound, C14H13NO4S·C3H7NO, the C—S—N—C torsion angle of −64.55 (17)° defines the folded conformation of the molecule. The dihedral angle between the benzene rings is 83.367 (6)°. In a crystal, molecules are linked into a chain along a axis through intermolecular N—H⋯O and O—H⋯O hydrogen bonds. There is also an intramolecular C—H⋯π interaction.
Related literature
N-protected amino acids possess an R-CONH-R′ group analogous to the structure of O-terminal and proteins, see: Antolini et al. (1984); Menabue & Saladini (1988).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2003); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536811011949/kp2315sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811011949/kp2315Isup2.hkl
A mixture of N-p-tolysulfonylchloride (1 mmol) and 4-aminobenzoic acid (1 mmol) in water(20 ml) was stirred at room temperature for 10 h. Then HCl (12 mol/L) was slowly added to the resulting solution. The mixture was stirred for 5 min and filtrated. The block colourless single crystals suitable for X-ray analysis were obtained by recrystallization from N,N-dimethylformamide. IR(KBr): 3423(s), 3198(versus), 3059(w), 2928(s), 2510(m), 1693(versus), 1635(versus), 1607(s), 1512(m), 1433(m), 1405(s), 1383(s), 1334(s), 1291(s), 1231(m), 1159(versus), 1092(s), 1021(w), 923(s), 862(m), 827(m), 765(m), 674(s), 5757(s), 547(s), 525(m), 503(w)cm-1.
H atoms were placed in calculated positions and treated as riding on their parent atoms (C—H = 0.93–0.96 Å, N—H = 0.86 Å,O—H = 0.82 Å) and Uiso(H) = 1.2Ueq(C,N).
Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2003); data reduction: SAINT (Bruker, 2003); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C14H13NO4S·C3H7NO | F(000) = 768 |
Mr = 364.41 | Dx = 1.351 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 3230 reflections |
a = 8.0953 (10) Å | θ = 2.5–25.0° |
b = 25.151 (3) Å | µ = 0.21 mm−1 |
c = 8.8840 (11) Å | T = 296 K |
β = 98.010 (1)° | Block, colourless |
V = 1791.1 (4) Å3 | 0.39 × 0.29 × 0.25 mm |
Z = 4 |
Bruker SMART CCD area-detector diffractometer | 3336 independent reflections |
Radiation source: fine-focus sealed tube | 2570 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.024 |
phi and ω scans | θmax = 25.5°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | h = −9→9 |
Tmin = 0.923, Tmax = 0.949 | k = −23→30 |
9993 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)] = 0.039 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.111 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0517P)2 + 0.5453P] where P = (Fo2 + 2Fc2)/3 |
3336 reflections | (Δ/σ)max < 0.001 |
230 parameters | Δρmax = 0.35 e Å−3 |
0 restraints | Δρmin = −0.37 e Å−3 |
C14H13NO4S·C3H7NO | V = 1791.1 (4) Å3 |
Mr = 364.41 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 8.0953 (10) Å | µ = 0.21 mm−1 |
b = 25.151 (3) Å | T = 296 K |
c = 8.8840 (11) Å | 0.39 × 0.29 × 0.25 mm |
β = 98.010 (1)° |
Bruker SMART CCD area-detector diffractometer | 3336 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 2570 reflections with I > 2σ(I) |
Tmin = 0.923, Tmax = 0.949 | Rint = 0.024 |
9993 measured reflections |
R[F2 > 2σ(F2)] = 0.039 | 0 restraints |
wR(F2) = 0.111 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.35 e Å−3 |
3336 reflections | Δρmin = −0.37 e Å−3 |
230 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 | 0.3556 (2) | 0.05871 (7) | 0.1256 (2) | 0.0380 (4) | |
C2 | 0.4907 (2) | 0.07414 (9) | 0.0562 (2) | 0.0498 (5) | |
H2 | 0.4753 | 0.0971 | −0.0266 | 0.060* | |
C3 | 0.6483 (2) | 0.05551 (9) | 0.1098 (2) | 0.0488 (5) | |
H3 | 0.7388 | 0.0665 | 0.0637 | 0.059* | |
C4 | 0.6733 (2) | 0.02077 (8) | 0.2312 (2) | 0.0400 (4) | |
C5 | 0.5375 (2) | 0.00633 (8) | 0.3018 (2) | 0.0449 (5) | |
H5 | 0.5529 | −0.0167 | 0.3846 | 0.054* | |
C6 | 0.3800 (2) | 0.02563 (8) | 0.2509 (2) | 0.0451 (5) | |
H6 | 0.2905 | 0.0164 | 0.3008 | 0.054* | |
C7 | 0.8422 (2) | −0.00147 (8) | 0.2797 (2) | 0.0452 (5) | |
C8 | 0.1600 (2) | 0.17188 (8) | 0.1824 (2) | 0.0459 (5) | |
C9 | 0.2493 (3) | 0.21904 (9) | 0.1886 (3) | 0.0560 (6) | |
H9 | 0.2980 | 0.2302 | 0.1052 | 0.067* | |
C10 | 0.2656 (3) | 0.24944 (9) | 0.3195 (3) | 0.0632 (6) | |
H10 | 0.3253 | 0.2811 | 0.3230 | 0.076* | |
C11 | 0.1950 (3) | 0.23365 (9) | 0.4452 (3) | 0.0602 (6) | |
C12 | 0.1080 (3) | 0.18598 (10) | 0.4370 (3) | 0.0625 (6) | |
H12 | 0.0610 | 0.1745 | 0.5211 | 0.075* | |
C13 | 0.0896 (3) | 0.15518 (9) | 0.3078 (3) | 0.0555 (6) | |
H13 | 0.0303 | 0.1234 | 0.3047 | 0.067* | |
C14 | 0.2119 (4) | 0.26663 (12) | 0.5889 (4) | 0.0878 (9) | |
H14A | 0.1492 | 0.2989 | 0.5700 | 0.132* | |
H14B | 0.3273 | 0.2750 | 0.6199 | 0.132* | |
H14C | 0.1699 | 0.2469 | 0.6679 | 0.132* | |
C15 | 0.7728 (3) | 0.09910 (9) | 0.6138 (2) | 0.0540 (6) | |
H15 | 0.7882 | 0.0853 | 0.7119 | 0.065* | |
C16 | 0.6101 (3) | 0.15217 (11) | 0.4239 (3) | 0.0717 (7) | |
H16A | 0.7017 | 0.1442 | 0.3698 | 0.108* | |
H16B | 0.5986 | 0.1900 | 0.4319 | 0.108* | |
H16C | 0.5092 | 0.1375 | 0.3702 | 0.108* | |
C17 | 0.5200 (4) | 0.13996 (13) | 0.6762 (4) | 0.0936 (10) | |
H17A | 0.5620 | 0.1273 | 0.7761 | 0.140* | |
H17B | 0.4173 | 0.1221 | 0.6400 | 0.140* | |
H17C | 0.5005 | 0.1776 | 0.6802 | 0.140* | |
N1 | 0.18945 (19) | 0.07351 (7) | 0.06580 (18) | 0.0446 (4) | |
H1 | 0.1149 | 0.0489 | 0.0558 | 0.054* | |
N2 | 0.6410 (2) | 0.12933 (7) | 0.5741 (2) | 0.0518 (4) | |
O1 | 0.96596 (17) | 0.01262 (6) | 0.22823 (18) | 0.0589 (4) | |
O2 | 0.84373 (17) | −0.03862 (7) | 0.38401 (19) | 0.0628 (4) | |
H2A | 0.9385 | −0.0505 | 0.4047 | 0.094* | |
O3 | 0.2361 (2) | 0.15441 (7) | −0.08607 (17) | 0.0661 (5) | |
O4 | −0.04468 (18) | 0.12891 (6) | −0.03477 (18) | 0.0621 (4) | |
O5 | 0.87652 (19) | 0.08779 (7) | 0.53101 (19) | 0.0625 (4) | |
S1 | 0.13037 (6) | 0.13338 (2) | 0.01515 (6) | 0.04889 (17) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0357 (10) | 0.0379 (10) | 0.0400 (10) | 0.0011 (8) | 0.0036 (8) | −0.0049 (8) |
C2 | 0.0447 (12) | 0.0610 (14) | 0.0444 (11) | 0.0025 (10) | 0.0084 (9) | 0.0134 (10) |
C3 | 0.0369 (11) | 0.0612 (14) | 0.0501 (12) | −0.0020 (9) | 0.0124 (9) | 0.0063 (10) |
C4 | 0.0336 (10) | 0.0438 (11) | 0.0424 (10) | −0.0017 (8) | 0.0044 (8) | −0.0040 (9) |
C5 | 0.0387 (11) | 0.0504 (12) | 0.0459 (11) | 0.0025 (9) | 0.0073 (8) | 0.0092 (9) |
C6 | 0.0348 (11) | 0.0506 (12) | 0.0517 (12) | 0.0004 (9) | 0.0122 (9) | 0.0067 (9) |
C7 | 0.0353 (10) | 0.0476 (12) | 0.0522 (12) | −0.0024 (9) | 0.0046 (8) | −0.0041 (9) |
C8 | 0.0364 (11) | 0.0419 (12) | 0.0582 (12) | 0.0028 (8) | 0.0025 (9) | 0.0042 (9) |
C9 | 0.0480 (13) | 0.0471 (13) | 0.0736 (15) | −0.0006 (10) | 0.0112 (11) | 0.0114 (11) |
C10 | 0.0536 (14) | 0.0423 (13) | 0.0934 (18) | −0.0078 (10) | 0.0091 (13) | −0.0037 (12) |
C11 | 0.0488 (13) | 0.0527 (14) | 0.0794 (16) | −0.0030 (11) | 0.0103 (11) | −0.0146 (12) |
C12 | 0.0592 (14) | 0.0635 (15) | 0.0682 (15) | −0.0128 (12) | 0.0207 (11) | −0.0104 (12) |
C13 | 0.0540 (13) | 0.0482 (13) | 0.0659 (14) | −0.0130 (10) | 0.0142 (11) | −0.0056 (11) |
C14 | 0.083 (2) | 0.0776 (19) | 0.106 (2) | −0.0165 (16) | 0.0240 (17) | −0.0388 (17) |
C15 | 0.0571 (14) | 0.0541 (14) | 0.0479 (12) | −0.0114 (11) | −0.0028 (10) | 0.0104 (10) |
C16 | 0.0728 (17) | 0.0799 (18) | 0.0596 (14) | 0.0280 (14) | −0.0006 (12) | 0.0042 (13) |
C17 | 0.091 (2) | 0.102 (2) | 0.100 (2) | 0.0006 (17) | 0.0533 (18) | −0.0015 (18) |
N1 | 0.0352 (9) | 0.0432 (10) | 0.0532 (10) | −0.0005 (7) | −0.0017 (7) | −0.0013 (7) |
N2 | 0.0465 (10) | 0.0578 (11) | 0.0517 (10) | 0.0023 (8) | 0.0088 (8) | 0.0015 (8) |
O1 | 0.0336 (8) | 0.0704 (11) | 0.0740 (10) | −0.0024 (7) | 0.0121 (7) | 0.0075 (8) |
O2 | 0.0371 (8) | 0.0679 (11) | 0.0827 (11) | 0.0070 (7) | 0.0059 (8) | 0.0237 (9) |
O3 | 0.0747 (11) | 0.0672 (11) | 0.0587 (9) | 0.0091 (8) | 0.0173 (8) | 0.0190 (8) |
O4 | 0.0481 (9) | 0.0665 (11) | 0.0659 (10) | 0.0111 (7) | −0.0123 (7) | 0.0033 (8) |
O5 | 0.0456 (9) | 0.0688 (11) | 0.0723 (10) | 0.0096 (7) | 0.0055 (8) | 0.0127 (8) |
S1 | 0.0447 (3) | 0.0511 (3) | 0.0492 (3) | 0.0066 (2) | 0.0007 (2) | 0.0071 (2) |
C1—C6 | 1.381 (3) | C12—C13 | 1.375 (3) |
C1—C2 | 1.384 (3) | C12—H12 | 0.9300 |
C1—N1 | 1.425 (2) | C13—H13 | 0.9300 |
C2—C3 | 1.380 (3) | C14—H14A | 0.9600 |
C2—H2 | 0.9300 | C14—H14B | 0.9600 |
C3—C4 | 1.380 (3) | C14—H14C | 0.9600 |
C3—H3 | 0.9300 | C15—O5 | 1.224 (3) |
C4—C5 | 1.388 (2) | C15—N2 | 1.317 (3) |
C4—C7 | 1.485 (3) | C15—H15 | 0.9300 |
C5—C6 | 1.380 (3) | C16—N2 | 1.442 (3) |
C5—H5 | 0.9300 | C16—H16A | 0.9600 |
C6—H6 | 0.9300 | C16—H16B | 0.9600 |
C7—O1 | 1.211 (2) | C16—H16C | 0.9600 |
C7—O2 | 1.315 (2) | C17—N2 | 1.450 (3) |
C8—C13 | 1.386 (3) | C17—H17A | 0.9600 |
C8—C9 | 1.386 (3) | C17—H17B | 0.9600 |
C8—S1 | 1.762 (2) | C17—H17C | 0.9600 |
C9—C10 | 1.382 (3) | N1—S1 | 1.6243 (17) |
C9—H9 | 0.9300 | N1—H1 | 0.8600 |
C10—C11 | 1.382 (3) | O2—H2A | 0.8200 |
C10—H10 | 0.9300 | O3—S1 | 1.4266 (16) |
C11—C12 | 1.387 (3) | O4—S1 | 1.4291 (15) |
C11—C14 | 1.512 (3) | ||
C6—C1—C2 | 119.62 (17) | C12—C13—H13 | 120.3 |
C6—C1—N1 | 118.66 (16) | C8—C13—H13 | 120.3 |
C2—C1—N1 | 121.62 (17) | C11—C14—H14A | 109.5 |
C3—C2—C1 | 120.08 (18) | C11—C14—H14B | 109.5 |
C3—C2—H2 | 120.0 | H14A—C14—H14B | 109.5 |
C1—C2—H2 | 120.0 | C11—C14—H14C | 109.5 |
C2—C3—C4 | 120.81 (18) | H14A—C14—H14C | 109.5 |
C2—C3—H3 | 119.6 | H14B—C14—H14C | 109.5 |
C4—C3—H3 | 119.6 | O5—C15—N2 | 124.8 (2) |
C3—C4—C5 | 118.68 (17) | O5—C15—H15 | 117.6 |
C3—C4—C7 | 119.61 (17) | N2—C15—H15 | 117.6 |
C5—C4—C7 | 121.68 (18) | N2—C16—H16A | 109.5 |
C6—C5—C4 | 120.87 (18) | N2—C16—H16B | 109.5 |
C6—C5—H5 | 119.6 | H16A—C16—H16B | 109.5 |
C4—C5—H5 | 119.6 | N2—C16—H16C | 109.5 |
C5—C6—C1 | 119.87 (17) | H16A—C16—H16C | 109.5 |
C5—C6—H6 | 120.1 | H16B—C16—H16C | 109.5 |
C1—C6—H6 | 120.1 | N2—C17—H17A | 109.5 |
O1—C7—O2 | 123.18 (18) | N2—C17—H17B | 109.5 |
O1—C7—C4 | 123.84 (19) | H17A—C17—H17B | 109.5 |
O2—C7—C4 | 112.97 (16) | N2—C17—H17C | 109.5 |
C13—C8—C9 | 119.9 (2) | H17A—C17—H17C | 109.5 |
C13—C8—S1 | 119.26 (16) | H17B—C17—H17C | 109.5 |
C9—C8—S1 | 120.86 (17) | C1—N1—S1 | 124.87 (13) |
C10—C9—C8 | 119.7 (2) | C1—N1—H1 | 117.6 |
C10—C9—H9 | 120.2 | S1—N1—H1 | 117.6 |
C8—C9—H9 | 120.2 | C15—N2—C16 | 120.48 (18) |
C11—C10—C9 | 121.2 (2) | C15—N2—C17 | 122.1 (2) |
C11—C10—H10 | 119.4 | C16—N2—C17 | 117.4 (2) |
C9—C10—H10 | 119.4 | C7—O2—H2A | 109.5 |
C10—C11—C12 | 118.0 (2) | O3—S1—O4 | 119.31 (10) |
C10—C11—C14 | 121.7 (2) | O3—S1—N1 | 109.82 (9) |
C12—C11—C14 | 120.3 (2) | O4—S1—N1 | 104.71 (9) |
C13—C12—C11 | 121.7 (2) | O3—S1—C8 | 107.75 (10) |
C13—C12—H12 | 119.1 | O4—S1—C8 | 108.51 (9) |
C11—C12—H12 | 119.1 | N1—S1—C8 | 106.00 (9) |
C12—C13—C8 | 119.4 (2) | ||
C6—C1—C2—C3 | 1.5 (3) | C10—C11—C12—C13 | −0.8 (4) |
N1—C1—C2—C3 | −174.66 (19) | C14—C11—C12—C13 | 179.6 (2) |
C1—C2—C3—C4 | 1.0 (3) | C11—C12—C13—C8 | 0.3 (4) |
C2—C3—C4—C5 | −2.2 (3) | C9—C8—C13—C12 | 0.6 (3) |
C2—C3—C4—C7 | 175.86 (19) | S1—C8—C13—C12 | −177.99 (18) |
C3—C4—C5—C6 | 0.9 (3) | C6—C1—N1—S1 | 135.20 (17) |
C7—C4—C5—C6 | −177.16 (19) | C2—C1—N1—S1 | −48.6 (2) |
C4—C5—C6—C1 | 1.7 (3) | O5—C15—N2—C16 | −0.3 (4) |
C2—C1—C6—C5 | −2.9 (3) | O5—C15—N2—C17 | 178.1 (2) |
N1—C1—C6—C5 | 173.46 (18) | C1—N1—S1—O3 | 51.58 (18) |
C3—C4—C7—O1 | 7.1 (3) | C1—N1—S1—O4 | −179.18 (15) |
C5—C4—C7—O1 | −174.9 (2) | C1—N1—S1—C8 | −64.55 (17) |
C3—C4—C7—O2 | −172.33 (19) | C13—C8—S1—O3 | −170.90 (16) |
C5—C4—C7—O2 | 5.7 (3) | C9—C8—S1—O3 | 10.6 (2) |
C13—C8—C9—C10 | −0.8 (3) | C13—C8—S1—O4 | 58.62 (19) |
S1—C8—C9—C10 | 177.71 (17) | C9—C8—S1—O4 | −119.92 (17) |
C8—C9—C10—C11 | 0.2 (3) | C13—C8—S1—N1 | −53.38 (19) |
C9—C10—C11—C12 | 0.6 (4) | C9—C8—S1—N1 | 128.09 (17) |
C9—C10—C11—C14 | −179.9 (2) |
Cg1 is the centroid of the C1–C6 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.86 | 2.27 | 2.903 (2) | 131 |
O2—H2A···O5ii | 0.82 | 1.79 | 2.598 (2) | 168 |
C16—H16C···Cg1 | 0.96 | 2.98 | 3.576 (3) | 121 |
Symmetry codes: (i) x−1, y, z; (ii) −x+2, −y, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C14H13NO4S·C3H7NO |
Mr | 364.41 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 296 |
a, b, c (Å) | 8.0953 (10), 25.151 (3), 8.8840 (11) |
β (°) | 98.010 (1) |
V (Å3) | 1791.1 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.21 |
Crystal size (mm) | 0.39 × 0.29 × 0.25 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2003) |
Tmin, Tmax | 0.923, 0.949 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9993, 3336, 2570 |
Rint | 0.024 |
(sin θ/λ)max (Å−1) | 0.606 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.039, 0.111, 1.04 |
No. of reflections | 3336 |
No. of parameters | 230 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.35, −0.37 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2003), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Cg1 is the centroid of the C1–C6 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.86 | 2.27 | 2.903 (2) | 131 |
O2—H2A···O5ii | 0.82 | 1.79 | 2.598 (2) | 168 |
C16—H16C···Cg1 | 0.96 | 2.98 | 3.576 (3) | 121 |
Symmetry codes: (i) x−1, y, z; (ii) −x+2, −y, −z+1. |
Acknowledgements
This work was supported by the Education Department Foundation of Fujian Province of China (grant No. 2008 F5053) and the Master Construction Project of Quanzhou Normal University.
References
Antolini, L., Menabue, L., Saladini, M., Pellacani, G. C., Battaglia, L. P., Sola, M. & Bonamartini Corradi, A. (1984). J. Chem. Soc. Dalton Trans. pp. 2319–2323. CSD CrossRef Web of Science Google Scholar
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N-Protected amino acids possess R-CONH-R' group analogous to the structure of O-terminal peptides and proteins (Menabue, et al., 1988, Antolini, et al., 1984). The substitution of an Ar—SO2-group on amine addes to 4-aminobenzeoic acid the coordination donors of three types-O, N donors from carboxyl, sulfoxyl and amine respectively, which may result in different coordination modes. In this paper, we synthesized the desired ligand in N,N-dimethylformamide solvent.
The title compound contains one N-p-tolysulfonyl-4-aminobenzoic acid molecule and a solvent N, N-dimethylformamide in the asymmetric unit (Fig. 1). The molecule has a C1—N1—S1—C8 of 64.552 (2) °, and the dihedral angle between the benzene rings is 83.367 (6) °. There are intermolecular hydrogen bonds between carboxylate group oxygen atoms, nitrogen atoms and solvent oxygen atoms of the types N—H···O and O—H···O generating a chain along a axis (Figs. 2 and 3, Table 1). There are intramolecular CH···π interactions between H(16 C) and H(17B) of solvent and the centre of two aromatic rings of the title molecule(C16—H16C···C1—C2—C3—C4—C5—C6 and C17—H17B···C8—C9—C10—C11—C12—C13; the distances of H to the centre of the aromatic rings are 2.982 (3) and 3.84 (3) Å, respectively).