Acta Cryst. (2009). E65, o12 [ doi:10.1107/S160053680804004X ]
In the title compound, C29H27NO6S, the sulfonyl-bound phenyl ring is almost perpendicular to the indole ring system [dihedral angle = 87.96 (6)°], while the benzylphenyl ring is oriented at an angle of 76.8 (7)°. An intramolecular C-H
O hydrogen bond is observed. In the crystal structure, molecules are linked into a zigzag C(10) chain along the b axis by intermolecular C-H
O hydrogen bonds.
To a solution of diethyl-2-((2-(bromomethyl)-1-(phenylsulfonyl)-1H-indol-3-yl)methylene)malonate (0.5 g, 0.96 mmol) in dry benzene (15 ml), ZnBr2 (0.43 g, 1.90 mmol) was added. The reaction mixture was then refluxed for 5 h under N2 atmosphere. It was then poured over ice-water (50 ml) containing 1 ml of concentrated HCl, extracted with chloroform (2 × 10 ml) and dried (Na2SO4). Removal of solvent followed by flash column chromatography (silica gel, 230–420 mesh, n-hexane/ethyl acetate 99:1) led to the isolation of diethyl-2-((2-benzyl-1-(phenylsulfonyl)-1H-indol-3-yl)methylene)malonate as a colourless solid. Single crystals were obtained by recrystallization from CDCl3.
H atoms were positioned geometrically (C—H = 0.93–0.98 Å) and allowed to ride on their parent atoms, with Uiso(H) = 1.5Ueq(Cmethyl) and 1.2Ueq(C). The components of the anisotropic displacement parameters of C26 and C27 in the direction of the bond between them were restrained to be equal within an effective standard deviation of 0.001.
Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2003).
| C29H27NO6S | F(000) = 1088 |
| Mr = 517.58 | Dx = 1.304 Mg m−3 |
| Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: -P 2yn | Cell parameters from 7583 reflections |
| a = 10.8280 (9) Å | θ = 2.2–29.9° |
| b = 13.7762 (11) Å | µ = 0.17 mm−1 |
| c = 17.6832 (16) Å | T = 293 K |
| β = 91.341 (4)° | Block, colourless |
| V = 2637.1 (4) Å3 | 0.30 × 0.25 × 0.16 mm |
| Z = 4 |
| Bruker Kappa APEXII area-detector diffractometer | 7583 independent reflections |
| Radiation source: fine-focus sealed tube | 4683 reflections with I > 2σ(I) |
| graphite | Rint = 0.030 |
| ω and φ scans | θmax = 29.9°, θmin = 2.2° |
| Absorption correction: multi-scan (SADABS; Sheldrick, 2001) | h = −15→12 |
| Tmin = 0.952, Tmax = 0.968 | k = −14→19 |
| 34168 measured reflections | l = −22→24 |
| 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)] = 0.048 | Hydrogen site location: inferred from neighbouring sites |
| wR(F2) = 0.142 | H-atom parameters constrained |
| S = 1.02 | w = 1/[σ2(Fo2) + (0.0628P)2 + 0.5537P] where P = (Fo2 + 2Fc2)/3 |
| 7583 reflections | (Δ/σ)max = 0.021 |
| 334 parameters | Δρmax = 0.25 e Å−3 |
| 1 restraint | Δρmin = −0.27 e Å−3 |
| C29H27NO6S | V = 2637.1 (4) Å3 |
| Mr = 517.58 | Z = 4 |
| Monoclinic, P21/n | Mo Kα radiation |
| a = 10.8280 (9) Å | µ = 0.17 mm−1 |
| b = 13.7762 (11) Å | T = 293 K |
| c = 17.6832 (16) Å | 0.30 × 0.25 × 0.16 mm |
| β = 91.341 (4)° |
| Bruker Kappa APEXII area-detector diffractometer | 7583 independent reflections |
| Absorption correction: multi-scan (SADABS; Sheldrick, 2001) | 4683 reflections with I > 2σ(I) |
| Tmin = 0.952, Tmax = 0.968 | Rint = 0.030 |
| 34168 measured reflections | θmax = 29.9° |
| R[F2 > 2σ(F2)] = 0.048 | H-atom parameters constrained |
| wR(F2) = 0.142 | Δρmax = 0.25 e Å−3 |
| S = 1.02 | Δρmin = −0.27 e Å−3 |
| 7583 reflections | Absolute structure: ? |
| 334 parameters | Flack parameter: ? |
| 1 restraint | Rogers parameter: ? |
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 | ||
| C2 | 0.62844 (14) | 0.59182 (11) | 0.04158 (8) | 0.0397 (3) | |
| C3 | 0.51591 (14) | 0.62397 (12) | 0.06343 (8) | 0.0413 (3) | |
| C4 | 0.46420 (15) | 0.55336 (12) | 0.11419 (8) | 0.0429 (3) | |
| C5 | 0.54970 (15) | 0.47797 (12) | 0.12226 (8) | 0.0433 (4) | |
| C6 | 0.52568 (17) | 0.39664 (14) | 0.16628 (10) | 0.0546 (4) | |
| H6 | 0.5824 | 0.3462 | 0.1707 | 0.066* | |
| C7 | 0.41513 (19) | 0.39360 (15) | 0.20291 (10) | 0.0612 (5) | |
| H7 | 0.3981 | 0.3409 | 0.2338 | 0.073* | |
| C8 | 0.32872 (18) | 0.46698 (15) | 0.19496 (10) | 0.0597 (5) | |
| H8 | 0.2546 | 0.4624 | 0.2202 | 0.072* | |
| C9 | 0.35069 (16) | 0.54695 (13) | 0.15017 (10) | 0.0524 (4) | |
| H9 | 0.2915 | 0.5954 | 0.1440 | 0.063* | |
| C10 | 0.86326 (16) | 0.49835 (14) | 0.16366 (10) | 0.0524 (4) | |
| C11 | 0.96281 (18) | 0.55897 (16) | 0.15389 (12) | 0.0648 (5) | |
| H11 | 0.9927 | 0.5708 | 0.1059 | 0.078* | |
| C12 | 1.0176 (2) | 0.60210 (19) | 0.21722 (15) | 0.0835 (7) | |
| H12 | 1.0852 | 0.6430 | 0.2118 | 0.100* | |
| C13 | 0.9725 (2) | 0.5846 (2) | 0.28747 (16) | 0.0986 (9) | |
| H13 | 1.0073 | 0.6158 | 0.3294 | 0.118* | |
| C14 | 0.8760 (3) | 0.5212 (3) | 0.29651 (13) | 0.1091 (10) | |
| H14 | 0.8478 | 0.5080 | 0.3447 | 0.131* | |
| C15 | 0.8210 (2) | 0.4773 (2) | 0.23443 (12) | 0.0856 (7) | |
| H15 | 0.7560 | 0.4340 | 0.2403 | 0.103* | |
| C16 | 0.71395 (15) | 0.64140 (12) | −0.01088 (8) | 0.0446 (4) | |
| H16A | 0.6652 | 0.6821 | −0.0449 | 0.053* | |
| H16B | 0.7534 | 0.5923 | −0.0414 | 0.053* | |
| C17 | 0.81366 (14) | 0.70333 (12) | 0.02598 (9) | 0.0426 (3) | |
| C18 | 0.93068 (15) | 0.70523 (13) | −0.00413 (10) | 0.0510 (4) | |
| H18 | 0.9470 | 0.6673 | −0.0462 | 0.061* | |
| C19 | 1.02346 (18) | 0.76232 (15) | 0.02708 (12) | 0.0647 (5) | |
| H19 | 1.1014 | 0.7624 | 0.0061 | 0.078* | |
| C20 | 1.00051 (19) | 0.81899 (17) | 0.08912 (13) | 0.0724 (6) | |
| H20 | 1.0630 | 0.8570 | 0.1107 | 0.087* | |
| C21 | 0.8847 (2) | 0.81906 (17) | 0.11901 (12) | 0.0741 (6) | |
| H21 | 0.8686 | 0.8581 | 0.1605 | 0.089* | |
| C22 | 0.79141 (16) | 0.76163 (14) | 0.08807 (10) | 0.0567 (5) | |
| H22 | 0.7135 | 0.7622 | 0.1091 | 0.068* | |
| C23 | 0.46256 (15) | 0.71538 (13) | 0.03676 (9) | 0.0477 (4) | |
| H23 | 0.4694 | 0.7277 | −0.0147 | 0.057* | |
| C24 | 0.40536 (15) | 0.78361 (12) | 0.07624 (9) | 0.0476 (4) | |
| C25 | 0.36165 (19) | 0.87182 (15) | 0.03489 (12) | 0.0619 (5) | |
| C26 | 0.2677 (3) | 1.02592 (18) | 0.04540 (15) | 0.1004 (9) | |
| H26A | 0.3365 | 1.0636 | 0.0270 | 0.120* | |
| H26B | 0.2122 | 1.0115 | 0.0030 | 0.120* | |
| C27 | 0.2032 (3) | 1.0801 (2) | 0.10279 (18) | 0.1203 (12) | |
| H27A | 0.1723 | 1.1397 | 0.0814 | 0.180* | |
| H27B | 0.2591 | 1.0943 | 0.1442 | 0.180* | |
| H27C | 0.1355 | 1.0421 | 0.1206 | 0.180* | |
| C28 | 0.38732 (16) | 0.77720 (12) | 0.15970 (10) | 0.0502 (4) | |
| C29 | 0.4911 (2) | 0.74032 (19) | 0.27630 (11) | 0.0809 (7) | |
| H29A | 0.4125 | 0.7117 | 0.2892 | 0.097* | |
| H29B | 0.5012 | 0.8004 | 0.3043 | 0.097* | |
| C30 | 0.5929 (3) | 0.6728 (2) | 0.29586 (14) | 0.1064 (9) | |
| H30A | 0.5924 | 0.6590 | 0.3491 | 0.160* | |
| H30B | 0.6703 | 0.7020 | 0.2834 | 0.160* | |
| H30C | 0.5821 | 0.6136 | 0.2679 | 0.160* | |
| N1 | 0.65221 (12) | 0.50118 (10) | 0.07694 (7) | 0.0434 (3) | |
| O1 | 0.76255 (13) | 0.34702 (9) | 0.10092 (8) | 0.0690 (4) | |
| O2 | 0.85555 (12) | 0.46945 (10) | 0.01832 (7) | 0.0633 (4) | |
| O3 | 0.3719 (2) | 0.88321 (13) | −0.03157 (9) | 0.1094 (7) | |
| O4 | 0.31220 (15) | 0.93642 (10) | 0.08018 (8) | 0.0764 (4) | |
| O5 | 0.29041 (13) | 0.78452 (13) | 0.18992 (8) | 0.0796 (4) | |
| O6 | 0.49406 (12) | 0.75941 (10) | 0.19517 (6) | 0.0585 (3) | |
| S1 | 0.78964 (4) | 0.44550 (3) | 0.08437 (2) | 0.04989 (13) |
| U11 | U22 | U33 | U12 | U13 | U23 | |
| C2 | 0.0459 (8) | 0.0424 (8) | 0.0309 (7) | 0.0023 (7) | 0.0020 (6) | −0.0038 (6) |
| C3 | 0.0452 (8) | 0.0447 (8) | 0.0340 (7) | 0.0016 (7) | 0.0032 (6) | −0.0048 (6) |
| C4 | 0.0464 (8) | 0.0455 (9) | 0.0370 (8) | −0.0037 (7) | 0.0048 (6) | −0.0059 (7) |
| C5 | 0.0489 (9) | 0.0456 (9) | 0.0355 (7) | −0.0019 (7) | 0.0027 (6) | −0.0039 (6) |
| C6 | 0.0612 (11) | 0.0529 (10) | 0.0498 (10) | −0.0033 (8) | 0.0006 (8) | 0.0058 (8) |
| C7 | 0.0703 (12) | 0.0621 (12) | 0.0514 (10) | −0.0159 (10) | 0.0063 (9) | 0.0086 (9) |
| C8 | 0.0590 (11) | 0.0694 (13) | 0.0512 (10) | −0.0182 (10) | 0.0143 (8) | −0.0059 (9) |
| C9 | 0.0486 (9) | 0.0565 (10) | 0.0524 (10) | −0.0037 (8) | 0.0107 (8) | −0.0101 (8) |
| C10 | 0.0457 (9) | 0.0609 (11) | 0.0506 (9) | 0.0128 (8) | 0.0012 (7) | 0.0029 (8) |
| C11 | 0.0536 (11) | 0.0751 (13) | 0.0653 (12) | 0.0044 (10) | −0.0044 (9) | 0.0152 (10) |
| C12 | 0.0632 (13) | 0.0920 (17) | 0.0942 (18) | −0.0040 (12) | −0.0210 (13) | 0.0058 (14) |
| C13 | 0.0718 (16) | 0.141 (2) | 0.0823 (18) | 0.0089 (16) | −0.0203 (13) | −0.0306 (17) |
| C14 | 0.0797 (17) | 0.195 (3) | 0.0526 (13) | −0.012 (2) | 0.0023 (12) | −0.0129 (17) |
| C15 | 0.0687 (13) | 0.137 (2) | 0.0510 (12) | −0.0199 (14) | 0.0061 (10) | −0.0014 (13) |
| C16 | 0.0485 (9) | 0.0516 (9) | 0.0338 (7) | 0.0050 (7) | 0.0063 (6) | −0.0001 (7) |
| C17 | 0.0439 (8) | 0.0426 (8) | 0.0415 (8) | 0.0067 (7) | 0.0062 (6) | 0.0043 (7) |
| C18 | 0.0505 (9) | 0.0530 (10) | 0.0499 (9) | 0.0071 (8) | 0.0113 (7) | 0.0025 (8) |
| C19 | 0.0500 (10) | 0.0672 (13) | 0.0775 (13) | −0.0016 (9) | 0.0109 (9) | 0.0031 (11) |
| C20 | 0.0570 (11) | 0.0733 (14) | 0.0868 (15) | −0.0107 (10) | −0.0022 (10) | −0.0109 (12) |
| C21 | 0.0729 (13) | 0.0775 (15) | 0.0720 (13) | −0.0009 (11) | 0.0059 (11) | −0.0294 (11) |
| C22 | 0.0480 (9) | 0.0650 (12) | 0.0575 (10) | 0.0042 (8) | 0.0101 (8) | −0.0138 (9) |
| C23 | 0.0488 (9) | 0.0541 (10) | 0.0405 (8) | 0.0058 (8) | 0.0053 (7) | 0.0017 (7) |
| C24 | 0.0456 (8) | 0.0496 (9) | 0.0477 (9) | 0.0084 (7) | 0.0050 (7) | 0.0033 (7) |
| C25 | 0.0677 (12) | 0.0595 (11) | 0.0588 (11) | 0.0184 (10) | 0.0064 (9) | 0.0085 (9) |
| C26 | 0.132 (2) | 0.0731 (16) | 0.0966 (17) | 0.0495 (15) | 0.0213 (15) | 0.0311 (13) |
| C27 | 0.153 (3) | 0.0816 (18) | 0.128 (2) | 0.0647 (19) | 0.038 (2) | 0.0285 (16) |
| C28 | 0.0561 (10) | 0.0433 (9) | 0.0516 (9) | 0.0084 (8) | 0.0111 (8) | −0.0023 (7) |
| C29 | 0.1101 (18) | 0.0912 (16) | 0.0414 (10) | −0.0064 (14) | −0.0021 (11) | −0.0033 (10) |
| C30 | 0.152 (3) | 0.098 (2) | 0.0674 (15) | 0.0107 (19) | −0.0347 (16) | 0.0001 (14) |
| N1 | 0.0451 (7) | 0.0462 (7) | 0.0392 (7) | 0.0041 (6) | 0.0041 (5) | 0.0004 (6) |
| O1 | 0.0787 (9) | 0.0475 (7) | 0.0809 (9) | 0.0133 (7) | 0.0053 (7) | 0.0002 (7) |
| O2 | 0.0642 (8) | 0.0748 (9) | 0.0517 (7) | 0.0226 (7) | 0.0178 (6) | −0.0014 (6) |
| O3 | 0.1778 (19) | 0.0924 (12) | 0.0589 (10) | 0.0551 (13) | 0.0223 (11) | 0.0235 (8) |
| O4 | 0.0987 (11) | 0.0608 (9) | 0.0703 (9) | 0.0373 (8) | 0.0117 (8) | 0.0129 (7) |
| O5 | 0.0693 (9) | 0.1000 (12) | 0.0707 (9) | 0.0266 (8) | 0.0279 (7) | 0.0055 (8) |
| O6 | 0.0627 (8) | 0.0694 (8) | 0.0434 (6) | −0.0004 (6) | 0.0007 (6) | −0.0052 (6) |
| S1 | 0.0533 (3) | 0.0490 (3) | 0.0476 (2) | 0.01314 (19) | 0.00624 (18) | −0.00205 (18) |
| C2—C3 | 1.361 (2) | C18—H18 | 0.93 |
| C2—N1 | 1.417 (2) | C19—C20 | 1.374 (3) |
| C2—C16 | 1.492 (2) | C19—H19 | 0.93 |
| C3—C4 | 1.445 (2) | C20—C21 | 1.372 (3) |
| C3—C23 | 1.459 (2) | C20—H20 | 0.93 |
| C4—C5 | 1.396 (2) | C21—C22 | 1.386 (3) |
| C4—C9 | 1.400 (2) | C21—H21 | 0.93 |
| C5—C6 | 1.392 (2) | C22—H22 | 0.93 |
| C5—N1 | 1.421 (2) | C23—C24 | 1.332 (2) |
| C6—C7 | 1.375 (3) | C23—H23 | 0.93 |
| C6—H6 | 0.93 | C24—C25 | 1.490 (2) |
| C7—C8 | 1.382 (3) | C24—C28 | 1.496 (2) |
| C7—H7 | 0.93 | C25—O3 | 1.193 (2) |
| C8—C9 | 1.381 (3) | C25—O4 | 1.319 (2) |
| C8—H8 | 0.93 | C26—C27 | 1.452 (4) |
| C9—H9 | 0.93 | C26—O4 | 1.455 (2) |
| C10—C15 | 1.373 (3) | C26—H26A | 0.97 |
| C10—C11 | 1.378 (3) | C26—H26B | 0.97 |
| C10—S1 | 1.7548 (18) | C27—H27A | 0.96 |
| C11—C12 | 1.389 (3) | C27—H27B | 0.96 |
| C11—H11 | 0.93 | C27—H27C | 0.96 |
| C12—C13 | 1.367 (4) | C28—O5 | 1.193 (2) |
| C12—H12 | 0.93 | C28—O6 | 1.325 (2) |
| C13—C14 | 1.373 (4) | C29—O6 | 1.460 (2) |
| C13—H13 | 0.93 | C29—C30 | 1.477 (4) |
| C14—C15 | 1.377 (3) | C29—H29A | 0.97 |
| C14—H14 | 0.93 | C29—H29B | 0.97 |
| C15—H15 | 0.93 | C30—H30A | 0.96 |
| C16—C17 | 1.512 (2) | C30—H30B | 0.96 |
| C16—H16A | 0.97 | C30—H30C | 0.96 |
| C16—H16B | 0.97 | N1—S1 | 1.6766 (13) |
| C17—C18 | 1.386 (2) | O1—S1 | 1.4199 (14) |
| C17—C22 | 1.386 (2) | O2—S1 | 1.4216 (13) |
| C18—C19 | 1.381 (3) | ||
| C3—C2—N1 | 108.43 (13) | C21—C20—C19 | 119.47 (19) |
| C3—C2—C16 | 126.91 (14) | C21—C20—H20 | 120.3 |
| N1—C2—C16 | 124.67 (13) | C19—C20—H20 | 120.3 |
| C2—C3—C4 | 108.64 (14) | C20—C21—C22 | 120.78 (19) |
| C2—C3—C23 | 122.64 (15) | C20—C21—H21 | 119.6 |
| C4—C3—C23 | 128.71 (14) | C22—C21—H21 | 119.6 |
| C5—C4—C9 | 119.58 (15) | C21—C22—C17 | 120.34 (16) |
| C5—C4—C3 | 107.37 (14) | C21—C22—H22 | 119.8 |
| C9—C4—C3 | 132.97 (16) | C17—C22—H22 | 119.8 |
| C6—C5—C4 | 121.58 (15) | C24—C23—C3 | 128.67 (15) |
| C6—C5—N1 | 130.93 (16) | C24—C23—H23 | 115.7 |
| C4—C5—N1 | 107.45 (13) | C3—C23—H23 | 115.7 |
| C7—C6—C5 | 117.64 (18) | C23—C24—C25 | 117.68 (16) |
| C7—C6—H6 | 121.2 | C23—C24—C28 | 123.27 (15) |
| C5—C6—H6 | 121.2 | C25—C24—C28 | 119.02 (15) |
| C6—C7—C8 | 121.64 (18) | O3—C25—O4 | 123.89 (18) |
| C6—C7—H7 | 119.2 | O3—C25—C24 | 123.70 (18) |
| C8—C7—H7 | 119.2 | O4—C25—C24 | 112.41 (16) |
| C9—C8—C7 | 121.09 (17) | C27—C26—O4 | 107.5 (2) |
| C9—C8—H8 | 119.5 | C27—C26—H26A | 110.2 |
| C7—C8—H8 | 119.5 | O4—C26—H26A | 110.2 |
| C8—C9—C4 | 118.42 (17) | C27—C26—H26B | 110.2 |
| C8—C9—H9 | 120.8 | O4—C26—H26B | 110.2 |
| C4—C9—H9 | 120.8 | H26A—C26—H26B | 108.5 |
| C15—C10—C11 | 121.37 (19) | C26—C27—H27A | 109.5 |
| C15—C10—S1 | 119.07 (16) | C26—C27—H27B | 109.5 |
| C11—C10—S1 | 119.56 (15) | H27A—C27—H27B | 109.5 |
| C10—C11—C12 | 118.6 (2) | C26—C27—H27C | 109.5 |
| C10—C11—H11 | 120.7 | H27A—C27—H27C | 109.5 |
| C12—C11—H11 | 120.7 | H27B—C27—H27C | 109.5 |
| C13—C12—C11 | 120.2 (2) | O5—C28—O6 | 124.78 (17) |
| C13—C12—H12 | 119.9 | O5—C28—C24 | 124.99 (17) |
| C11—C12—H12 | 119.9 | O6—C28—C24 | 110.20 (14) |
| C12—C13—C14 | 120.5 (2) | O6—C29—C30 | 108.07 (19) |
| C12—C13—H13 | 119.8 | O6—C29—H29A | 110.1 |
| C14—C13—H13 | 119.8 | C30—C29—H29A | 110.1 |
| C13—C14—C15 | 120.2 (2) | O6—C29—H29B | 110.1 |
| C13—C14—H14 | 119.9 | C30—C29—H29B | 110.1 |
| C15—C14—H14 | 119.9 | H29A—C29—H29B | 108.4 |
| C10—C15—C14 | 119.1 (2) | C29—C30—H30A | 109.5 |
| C10—C15—H15 | 120.4 | C29—C30—H30B | 109.5 |
| C14—C15—H15 | 120.4 | H30A—C30—H30B | 109.5 |
| C2—C16—C17 | 115.95 (12) | C29—C30—H30C | 109.5 |
| C2—C16—H16A | 108.3 | H30A—C30—H30C | 109.5 |
| C17—C16—H16A | 108.3 | H30B—C30—H30C | 109.5 |
| C2—C16—H16B | 108.3 | C2—N1—C5 | 108.11 (12) |
| C17—C16—H16B | 108.3 | C2—N1—S1 | 126.11 (11) |
| H16A—C16—H16B | 107.4 | C5—N1—S1 | 123.82 (11) |
| C18—C17—C22 | 118.08 (16) | C25—O4—C26 | 116.75 (17) |
| C18—C17—C16 | 119.68 (14) | C28—O6—C29 | 117.36 (16) |
| C22—C17—C16 | 122.21 (14) | O1—S1—O2 | 120.08 (9) |
| C19—C18—C17 | 121.36 (17) | O1—S1—N1 | 105.43 (8) |
| C19—C18—H18 | 119.3 | O2—S1—N1 | 106.92 (7) |
| C17—C18—H18 | 119.3 | O1—S1—C10 | 108.90 (9) |
| C20—C19—C18 | 119.95 (18) | O2—S1—C10 | 109.44 (9) |
| C20—C19—H19 | 120.0 | N1—S1—C10 | 104.98 (7) |
| C18—C19—H19 | 120.0 | ||
| N1—C2—C3—C4 | 0.01 (17) | C3—C2—N1—S1 | −164.69 (11) |
| C16—C2—C3—C4 | 179.63 (14) | C16—C2—N1—S1 | 15.7 (2) |
| N1—C2—C3—C23 | −179.53 (13) | C6—C5—N1—C2 | 177.89 (16) |
| C16—C2—C3—C23 | 0.1 (2) | C4—C5—N1—C2 | 0.36 (16) |
| C2—C3—C4—C5 | 0.22 (17) | C6—C5—N1—S1 | −17.2 (2) |
| C23—C3—C4—C5 | 179.72 (15) | C4—C5—N1—S1 | 165.27 (11) |
| C2—C3—C4—C9 | −176.51 (17) | O4—C25—O3—O3 | 0.0 (3) |
| C23—C3—C4—C9 | 3.0 (3) | C24—C25—O3—O3 | 0.0 (3) |
| C9—C4—C5—C6 | −0.9 (2) | O3—C25—O4—C26 | 0.4 (4) |
| C3—C4—C5—C6 | −178.16 (14) | O3—C25—O4—C26 | 0.4 (4) |
| C9—C4—C5—N1 | 176.89 (14) | C24—C25—O4—C26 | 179.4 (2) |
| C3—C4—C5—N1 | −0.35 (17) | C27—C26—O4—C25 | 172.6 (2) |
| C4—C5—C6—C7 | −1.1 (2) | O5—C28—O6—C29 | 4.8 (3) |
| N1—C5—C6—C7 | −178.33 (16) | C24—C28—O6—C29 | −173.44 (16) |
| C5—C6—C7—C8 | 1.8 (3) | C30—C29—O6—C28 | 148.87 (19) |
| C6—C7—C8—C9 | −0.5 (3) | O1—O1—S1—O2 | 0.00 (10) |
| C7—C8—C9—C4 | −1.5 (3) | O1—O1—S1—O2 | 0.00 (10) |
| C5—C4—C9—C8 | 2.2 (2) | O1—O1—S1—O2 | 0.00 (10) |
| C3—C4—C9—C8 | 178.61 (16) | O1—O1—S1—N1 | 0.00 (9) |
| C15—C10—C11—C12 | −2.5 (3) | O1—O1—S1—C10 | 0.00 (10) |
| S1—C10—C11—C12 | 178.27 (16) | O2—O2—S1—O1 | 0.00 (6) |
| C10—C11—C12—C13 | −0.3 (3) | O2—O2—S1—O1 | 0.00 (6) |
| C11—C12—C13—C14 | 2.7 (4) | O2—O2—S1—O1 | 0.00 (6) |
| C12—C13—C14—C15 | −2.3 (5) | O2—O2—S1—O1 | 0.00 (6) |
| C11—C10—C15—C14 | 2.9 (4) | O2—O2—S1—O2 | 0.00 (4) |
| S1—C10—C15—C14 | −177.9 (2) | O2—O2—S1—O2 | 0.00 (4) |
| C13—C14—C15—C10 | −0.5 (5) | O2—O2—S1—N1 | 0.00 (2) |
| C3—C2—C16—C17 | 95.29 (18) | O2—O2—S1—N1 | 0.00 (2) |
| N1—C2—C16—C17 | −85.15 (19) | O2—O2—S1—C10 | 0.00 (5) |
| C2—C16—C17—C22 | −40.0 (2) | O2—O2—S1—C10 | 0.00 (5) |
| C2—C16—C17—C18 | 142.20 (15) | C2—N1—S1—O1 | −161.77 (13) |
| C22—C17—C18—C19 | 0.9 (3) | C5—N1—S1—O1 | 36.07 (15) |
| C16—C17—C18—C19 | 178.73 (16) | C2—N1—S1—O1 | −161.77 (13) |
| C17—C18—C19—C20 | −0.2 (3) | C5—N1—S1—O1 | 36.07 (15) |
| C18—C19—C20—C21 | −0.7 (3) | C2—N1—S1—O2 | −32.90 (15) |
| C19—C20—C21—C22 | 1.0 (4) | C5—N1—S1—O2 | 164.94 (13) |
| C20—C21—C22—C17 | −0.3 (3) | C2—N1—S1—O2 | −32.90 (15) |
| C18—C17—C22—C21 | −0.6 (3) | C5—N1—S1—O2 | 164.94 (13) |
| C16—C17—C22—C21 | −178.43 (18) | C2—N1—S1—O2 | −32.90 (15) |
| C2—C3—C23—C24 | −135.86 (19) | C5—N1—S1—O2 | 164.94 (13) |
| C4—C3—C23—C24 | 44.7 (3) | C2—N1—S1—C10 | 83.29 (14) |
| C3—C23—C24—C25 | 178.68 (17) | C5—N1—S1—C10 | −78.86 (14) |
| C3—C23—C24—C28 | 0.9 (3) | C15—C10—S1—O1 | −41.3 (2) |
| C23—C24—C25—O3 | 2.2 (3) | C11—C10—S1—O1 | 137.98 (16) |
| C28—C24—C25—O3 | −179.9 (2) | C15—C10—S1—O1 | −41.3 (2) |
| C23—C24—C25—O3 | 2.2 (3) | C11—C10—S1—O1 | 137.98 (16) |
| C28—C24—C25—O3 | −179.9 (2) | C15—C10—S1—O2 | −174.34 (17) |
| C23—C24—C25—O4 | −176.75 (17) | C11—C10—S1—O2 | 4.93 (18) |
| C28—C24—C25—O4 | 1.1 (3) | C15—C10—S1—O2 | −174.34 (17) |
| C23—C24—C28—O5 | −126.2 (2) | C11—C10—S1—O2 | 4.93 (18) |
| C25—C24—C28—O5 | 56.1 (3) | C15—C10—S1—O2 | −174.34 (17) |
| C23—C24—C28—O6 | 52.0 (2) | C11—C10—S1—O2 | 4.93 (18) |
| C25—C24—C28—O6 | −125.73 (17) | C15—C10—S1—N1 | 71.20 (19) |
| C3—C2—N1—C5 | −0.23 (16) | C11—C10—S1—N1 | −109.53 (15) |
| C16—C2—N1—C5 | −179.86 (13) |
| D—H···A | D—H | H···A | D···A | D—H···A |
| C6—H6···O1 | 0.93 | 2.33 | 2.919 (2) | 121 |
| C7—H7···O5i | 0.93 | 2.59 | 3.317 (2) | 135 |
| Symmetry codes: (i) −x+1/2, y−1/2, −z+1/2. |
| D—H···A | D—H | H···A | D···A | D—H···A |
| C6—H6···O1 | 0.93 | 2.33 | 2.919 (2) | 121 |
| C7—H7···O5i | 0.93 | 2.59 | 3.317 (2) | 135 |
| Symmetry codes: (i) −x+1/2, y−1/2, −z+1/2. |
TK thanks Dr Babu Varghese, SAIF, IIT-Madras, Chennai, India, for his help with the data collection. VD thanks UGC, India, for financial support.
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Indole derivatives have been found to exhibit antibacterial, antifungal (Wang & Ng, 2002; Singh et al., 2000; Tsotinis et al., 1997; Quetin-Leclercq et al., 1995) and antitumour activities (Andreani et al., 2001).
The longer C—N distances [N1—C2 = 1.417 (2) Å and N1—C5 = 1.421 (2) Å] are indicative of the electronic withdrawing character of the phenylsulfonyl group. Atom S1 has a distorted tetrahedral configuration. The widening of the O1—S1—O2 angle to 120.09 (8)°, and the resultant narrowing of the N1—S1—C10 to 104.99 (8)°, from the ideal tetrahedral values, are attributed to the Thorpe- Ingold effect (Bassindale, 1984). The indole ring system is planar. The sum of bond angles around N1 (358.0°) indicates that N1 is in sp2 hybridization. The sulfonyl bound phenyl ring is almost perpendicular to the indole ring system, with a dihedral angle of 87.96 (6)°. The benzylphenyl ring is oriented at an angle of 76.69 (5)° with respect to the indole ring system. The ester groups attached to the indole ring system assume extended conformations [C3—C23—C24—C25 = 178.7 (2)°, C23—C24—C25—O4 = -176.8 (2)°, C24—C25—O4—C26 =179.4 (2)°, C25—O4—C26—C27 = 172.6 (2)°]. An intramolecular C6—H6···O1 hydrogen bond is observed.
In the crystal structure, the molecules are linked into a zigzag C(10) chain along the b axis by intermolecular C—H···O hydrogen bonds (Table 1 and Fig.2).