organic compounds
1-(4-{2-[(E)-3-(4-Chlorophenyl)-3-oxoprop-1-en-1-yl]phenoxy}butyl)-1H-indole-3-carbaldehyde
aPost Graduate and Research Department of Physics, Agurchand Manmull Jain College, Chennai 600 114, India, and bDepartment of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
*Correspondence e-mail: seshadri_pr@yahoo.com
In the title compound, C28H24ClNO3, the dihedral angles between the central benzene ring and the indole ring system and the chlorobenzene ring are 70.81 (5) and 78.62 (5)°, respectively. The molecular structure is stabilized by a weak intramolecular C—H⋯O interaction. In the crystal, pairs of C—H⋯O hydrogen bonds link the molecules into inversion dimers with an R22(14) motif.
Related literature
For the biological activity of indole derivatives, see: Olgen & Coban (2003); Ho et al. (1986); Joshi & Chand (1982); Rodriguez et al. (1985); Okabe & Adachi (1998); Merck (1973). For N-atom see: Beddoes et al. (1986). For a related structure, see: Paramasivam et al. (2012). For graph-set notation see: Bernstein et al. (1995).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: APEX2 (Bruker, 2008); cell SAINT (Bruker, 2008); 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 Windowa (Farrugia, 2012) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97, PLATON and publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536813002456/kp2444sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813002456/kp2444Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536813002456/kp2444Isup3.cml
2 g (13.7 mmol) of 1H-indole-3-carbaldehyde in 25 mL dry DMF and anhydrous potassium carbonate (2 g, 13.7 mmol) were stirred for 15 min at room temperature followed by addition of 5.4 g (13.7 mmol) of (E)-3-(2-(4-bromobutoxy)phenyl)-1-(4-chlorophenyl)prop-2-en-1-one in 30 mL dry DMF with continued stirring for about 3 h at room temperature. After the completion of the reaction as evidenced from TLC, the solvent was filtered into crushed ice and extracted with chloroform. The organic extract was dried over Na2SO4 and concentrated under reduced pressure.
of the residue eluting with hexane/ethyl acetate mixture (8:2) gave pure (E)-1-(4-(2-(3-(4-chlorophenyl)-3-oxoprop-1-enyl)phenoxy)butyl)-1H-indole-3-carbaldehyde in good yield.Hydrogen atoms were positioned geometrically and allowed to ride on their parent atoms, with C—H = 0.93 - 0.97 Å and Uiso(H) = 1.5Ueq(C) for methyl H atoms and 1.2 Ueq(C) for other H atoms.
Data collection: APEX2 (Bruker, 2008); cell
SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windowa (Farrugia, 2012) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009) and publCIF (Westrip, 2010).C28H24ClNO3 | F(000) = 960 |
Mr = 457.93 | monoclinic |
Monoclinic, P21/n | Dx = 1.312 Mg m−3 |
Hall symbol: -P 2yn | Mo Kα radiation, λ = 0.71073 Å |
a = 8.7126 (3) Å | Cell parameters from 5782 reflections |
b = 19.1311 (6) Å | θ = 1.8–28.3° |
c = 13.9338 (4) Å | µ = 0.20 mm−1 |
β = 93.198 (2)° | T = 298 K |
V = 2318.89 (13) Å3 | Block, colourless |
Z = 4 | 0.20 × 0.20 × 0.20 mm |
Bruker SMART APEXII area-detector diffractometer | 4060 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.026 |
Graphite monochromator | θmax = 28.3°, θmin = 1.8° |
ω and ϕ scans | h = −8→11 |
22253 measured reflections | k = −25→21 |
5782 independent reflections | l = −18→18 |
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)] = 0.049 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.145 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0591P)2 + 0.7822P] where P = (Fo2 + 2Fc2)/3 |
5782 reflections | (Δ/σ)max < 0.001 |
298 parameters | Δρmax = 0.39 e Å−3 |
0 restraints | Δρmin = −0.46 e Å−3 |
C28H24ClNO3 | V = 2318.89 (13) Å3 |
Mr = 457.93 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 8.7126 (3) Å | µ = 0.20 mm−1 |
b = 19.1311 (6) Å | T = 298 K |
c = 13.9338 (4) Å | 0.20 × 0.20 × 0.20 mm |
β = 93.198 (2)° |
Bruker SMART APEXII area-detector diffractometer | 4060 reflections with I > 2σ(I) |
22253 measured reflections | Rint = 0.026 |
5782 independent reflections |
R[F2 > 2σ(F2)] = 0.049 | 0 restraints |
wR(F2) = 0.145 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.39 e Å−3 |
5782 reflections | Δρmin = −0.46 e Å−3 |
298 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 | −0.0037 (3) | 0.70610 (12) | 0.90463 (15) | 0.0675 (5) | |
C2 | 0.0110 (3) | 0.63646 (12) | 0.88447 (16) | 0.0743 (6) | |
H2 | −0.0351 | 0.6177 | 0.8284 | 0.089* | |
C3 | 0.0951 (3) | 0.59454 (11) | 0.94836 (14) | 0.0656 (5) | |
H3 | 0.1071 | 0.5474 | 0.9341 | 0.079* | |
C4 | 0.1623 (2) | 0.62099 (10) | 1.03343 (13) | 0.0526 (4) | |
C5 | 0.1383 (3) | 0.69100 (11) | 1.05371 (16) | 0.0700 (6) | |
H5 | 0.1781 | 0.7095 | 1.1116 | 0.084* | |
C6 | 0.0566 (3) | 0.73364 (12) | 0.98970 (18) | 0.0776 (7) | |
H6 | 0.0423 | 0.7806 | 1.0039 | 0.093* | |
C7 | 0.2526 (2) | 0.57743 (10) | 1.10492 (13) | 0.0559 (4) | |
C8 | 0.3047 (2) | 0.50761 (10) | 1.07578 (13) | 0.0552 (4) | |
H8 | 0.2842 | 0.4926 | 1.0129 | 0.066* | |
C9 | 0.3803 (2) | 0.46590 (9) | 1.13797 (12) | 0.0488 (4) | |
H9 | 0.3943 | 0.4842 | 1.1997 | 0.059* | |
C10 | 0.44511 (19) | 0.39676 (9) | 1.12663 (11) | 0.0450 (4) | |
C11 | 0.5351 (2) | 0.36906 (10) | 1.20364 (12) | 0.0535 (4) | |
H11 | 0.5511 | 0.3958 | 1.2590 | 0.064* | |
C12 | 0.6008 (3) | 0.30409 (11) | 1.20085 (14) | 0.0647 (5) | |
H12 | 0.6605 | 0.2874 | 1.2533 | 0.078* | |
C13 | 0.5775 (3) | 0.26396 (11) | 1.11985 (15) | 0.0688 (6) | |
H13 | 0.6221 | 0.2199 | 1.1174 | 0.083* | |
C14 | 0.4884 (3) | 0.28835 (10) | 1.04196 (13) | 0.0609 (5) | |
H14 | 0.4723 | 0.2604 | 0.9878 | 0.073* | |
C15 | 0.4230 (2) | 0.35419 (9) | 1.04394 (11) | 0.0472 (4) | |
C16 | 0.2994 (3) | 0.33837 (10) | 0.88721 (13) | 0.0632 (5) | |
H16A | 0.2491 | 0.2958 | 0.9063 | 0.076* | |
H16B | 0.3921 | 0.3260 | 0.8558 | 0.076* | |
C17 | 0.1931 (3) | 0.38074 (11) | 0.82024 (13) | 0.0612 (5) | |
H17A | 0.1520 | 0.3506 | 0.7690 | 0.073* | |
H17B | 0.1074 | 0.3973 | 0.8556 | 0.073* | |
C18 | 0.2704 (2) | 0.44254 (11) | 0.77648 (12) | 0.0571 (5) | |
H18A | 0.3509 | 0.4258 | 0.7370 | 0.068* | |
H18B | 0.3183 | 0.4708 | 0.8276 | 0.068* | |
C19 | 0.1603 (2) | 0.48804 (10) | 0.71534 (12) | 0.0583 (5) | |
H19A | 0.0824 | 0.5064 | 0.7556 | 0.070* | |
H19B | 0.2167 | 0.5274 | 0.6911 | 0.070* | |
C20 | −0.0653 (2) | 0.43252 (9) | 0.62598 (12) | 0.0485 (4) | |
H20 | −0.1354 | 0.4400 | 0.6729 | 0.058* | |
C21 | −0.09949 (19) | 0.40123 (9) | 0.53853 (11) | 0.0445 (4) | |
C22 | −0.2501 (2) | 0.37870 (11) | 0.50518 (14) | 0.0564 (5) | |
H22 | −0.3284 | 0.3832 | 0.5475 | 0.068* | |
C23 | 0.04045 (18) | 0.39990 (8) | 0.48909 (11) | 0.0404 (3) | |
C24 | 0.15337 (18) | 0.43141 (8) | 0.55073 (11) | 0.0420 (3) | |
C25 | 0.3043 (2) | 0.43976 (10) | 0.52522 (13) | 0.0526 (4) | |
H25 | 0.3779 | 0.4609 | 0.5665 | 0.063* | |
C26 | 0.3401 (2) | 0.41551 (11) | 0.43653 (14) | 0.0596 (5) | |
H26 | 0.4400 | 0.4207 | 0.4172 | 0.071* | |
C27 | 0.2308 (2) | 0.38327 (11) | 0.37477 (13) | 0.0583 (5) | |
H27 | 0.2594 | 0.3668 | 0.3155 | 0.070* | |
C28 | 0.0807 (2) | 0.37520 (10) | 0.39963 (11) | 0.0492 (4) | |
H28 | 0.0082 | 0.3538 | 0.3578 | 0.059* | |
N1 | 0.08465 (17) | 0.45088 (7) | 0.63409 (9) | 0.0469 (3) | |
O1 | 0.2827 (2) | 0.59973 (9) | 1.18603 (10) | 0.0837 (5) | |
O2 | 0.33578 (16) | 0.38163 (6) | 0.96938 (8) | 0.0570 (3) | |
O3 | −0.28421 (16) | 0.35426 (9) | 0.42671 (11) | 0.0757 (4) | |
Cl1 | −0.10168 (10) | 0.76018 (4) | 0.82139 (5) | 0.1058 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0800 (14) | 0.0584 (12) | 0.0639 (12) | 0.0172 (11) | 0.0030 (10) | −0.0019 (10) |
C2 | 0.0966 (17) | 0.0648 (14) | 0.0599 (12) | 0.0149 (12) | −0.0089 (11) | −0.0127 (10) |
C3 | 0.0897 (15) | 0.0488 (11) | 0.0576 (11) | 0.0095 (10) | −0.0022 (10) | −0.0117 (9) |
C4 | 0.0585 (10) | 0.0466 (10) | 0.0532 (9) | 0.0020 (8) | 0.0097 (8) | −0.0081 (8) |
C5 | 0.0835 (15) | 0.0548 (12) | 0.0704 (13) | 0.0083 (11) | −0.0079 (11) | −0.0187 (10) |
C6 | 0.0954 (17) | 0.0479 (12) | 0.0880 (16) | 0.0151 (11) | −0.0086 (13) | −0.0162 (11) |
C7 | 0.0657 (11) | 0.0528 (11) | 0.0494 (9) | 0.0014 (9) | 0.0058 (8) | −0.0109 (8) |
C8 | 0.0714 (12) | 0.0496 (11) | 0.0441 (9) | 0.0032 (9) | −0.0005 (8) | −0.0074 (8) |
C9 | 0.0542 (10) | 0.0505 (10) | 0.0416 (8) | −0.0067 (8) | 0.0022 (7) | −0.0085 (7) |
C10 | 0.0502 (9) | 0.0462 (9) | 0.0384 (7) | −0.0065 (7) | 0.0006 (6) | −0.0016 (7) |
C11 | 0.0612 (11) | 0.0578 (11) | 0.0405 (8) | −0.0055 (9) | −0.0066 (7) | −0.0034 (8) |
C12 | 0.0793 (14) | 0.0593 (12) | 0.0532 (10) | 0.0047 (10) | −0.0170 (9) | 0.0061 (9) |
C13 | 0.0935 (15) | 0.0495 (12) | 0.0615 (11) | 0.0115 (11) | −0.0135 (11) | 0.0028 (9) |
C14 | 0.0893 (14) | 0.0453 (10) | 0.0466 (9) | 0.0052 (10) | −0.0090 (9) | −0.0045 (8) |
C15 | 0.0603 (10) | 0.0439 (9) | 0.0369 (7) | −0.0039 (8) | −0.0040 (7) | 0.0006 (7) |
C16 | 0.0968 (15) | 0.0458 (10) | 0.0446 (9) | −0.0043 (10) | −0.0178 (9) | −0.0066 (8) |
C17 | 0.0779 (13) | 0.0559 (12) | 0.0475 (9) | −0.0123 (10) | −0.0173 (9) | −0.0022 (8) |
C18 | 0.0674 (11) | 0.0611 (12) | 0.0414 (8) | −0.0094 (9) | −0.0101 (8) | −0.0029 (8) |
C19 | 0.0799 (13) | 0.0482 (11) | 0.0452 (9) | −0.0041 (9) | −0.0111 (9) | −0.0047 (8) |
C20 | 0.0539 (10) | 0.0498 (10) | 0.0417 (8) | 0.0056 (8) | 0.0022 (7) | 0.0074 (7) |
C21 | 0.0471 (9) | 0.0440 (9) | 0.0415 (8) | 0.0005 (7) | −0.0035 (6) | 0.0086 (7) |
C22 | 0.0489 (10) | 0.0632 (12) | 0.0565 (10) | −0.0022 (8) | −0.0014 (8) | 0.0116 (9) |
C23 | 0.0458 (8) | 0.0368 (8) | 0.0377 (7) | 0.0003 (6) | −0.0057 (6) | 0.0084 (6) |
C24 | 0.0482 (9) | 0.0373 (8) | 0.0397 (7) | 0.0006 (7) | −0.0046 (6) | 0.0060 (6) |
C25 | 0.0482 (9) | 0.0525 (11) | 0.0560 (10) | −0.0046 (8) | −0.0082 (7) | 0.0065 (8) |
C26 | 0.0476 (10) | 0.0700 (13) | 0.0613 (11) | 0.0019 (9) | 0.0047 (8) | 0.0082 (10) |
C27 | 0.0614 (11) | 0.0666 (13) | 0.0473 (9) | 0.0066 (9) | 0.0075 (8) | 0.0010 (8) |
C28 | 0.0569 (10) | 0.0498 (10) | 0.0401 (8) | 0.0007 (8) | −0.0051 (7) | 0.0022 (7) |
N1 | 0.0575 (8) | 0.0443 (8) | 0.0380 (7) | 0.0004 (6) | −0.0065 (6) | 0.0009 (6) |
O1 | 0.1221 (14) | 0.0712 (10) | 0.0562 (8) | 0.0217 (9) | −0.0091 (8) | −0.0221 (7) |
O2 | 0.0842 (9) | 0.0449 (7) | 0.0396 (6) | 0.0066 (6) | −0.0160 (6) | −0.0055 (5) |
O3 | 0.0594 (8) | 0.1004 (12) | 0.0651 (9) | −0.0151 (8) | −0.0157 (7) | −0.0039 (8) |
Cl1 | 0.1481 (7) | 0.0834 (5) | 0.0832 (4) | 0.0471 (5) | −0.0170 (4) | −0.0014 (3) |
C1—C2 | 1.369 (3) | C16—C17 | 1.513 (3) |
C1—C6 | 1.374 (3) | C16—H16A | 0.9700 |
C1—Cl1 | 1.742 (2) | C16—H16B | 0.9700 |
C2—C3 | 1.378 (3) | C17—C18 | 1.506 (3) |
C2—H2 | 0.9300 | C17—H17A | 0.9700 |
C3—C4 | 1.388 (3) | C17—H17B | 0.9700 |
C3—H3 | 0.9300 | C18—C19 | 1.520 (3) |
C4—C5 | 1.387 (3) | C18—H18A | 0.9700 |
C4—C7 | 1.489 (3) | C18—H18B | 0.9700 |
C5—C6 | 1.377 (3) | C19—N1 | 1.462 (2) |
C5—H5 | 0.9300 | C19—H19A | 0.9700 |
C6—H6 | 0.9300 | C19—H19B | 0.9700 |
C7—O1 | 1.223 (2) | C20—N1 | 1.352 (2) |
C7—C8 | 1.475 (3) | C20—C21 | 1.375 (2) |
C8—C9 | 1.326 (3) | C20—H20 | 0.9300 |
C8—H8 | 0.9300 | C21—C23 | 1.434 (2) |
C9—C10 | 1.450 (3) | C21—C22 | 1.434 (2) |
C9—H9 | 0.9300 | C22—O3 | 1.211 (2) |
C10—C11 | 1.398 (2) | C22—H22 | 0.9300 |
C10—C15 | 1.415 (2) | C23—C28 | 1.396 (2) |
C11—C12 | 1.370 (3) | C23—C24 | 1.405 (2) |
C11—H11 | 0.9300 | C24—N1 | 1.387 (2) |
C12—C13 | 1.371 (3) | C24—C25 | 1.390 (2) |
C12—H12 | 0.9300 | C25—C26 | 1.372 (3) |
C13—C14 | 1.380 (3) | C25—H25 | 0.9300 |
C13—H13 | 0.9300 | C26—C27 | 1.392 (3) |
C14—C15 | 1.383 (3) | C26—H26 | 0.9300 |
C14—H14 | 0.9300 | C27—C28 | 1.380 (3) |
C15—O2 | 1.3583 (19) | C27—H27 | 0.9300 |
C16—O2 | 1.434 (2) | C28—H28 | 0.9300 |
C2—C1—C6 | 121.0 (2) | H16A—C16—H16B | 108.6 |
C2—C1—Cl1 | 119.29 (18) | C18—C17—C16 | 113.45 (17) |
C6—C1—Cl1 | 119.75 (17) | C18—C17—H17A | 108.9 |
C1—C2—C3 | 119.1 (2) | C16—C17—H17A | 108.9 |
C1—C2—H2 | 120.5 | C18—C17—H17B | 108.9 |
C3—C2—H2 | 120.5 | C16—C17—H17B | 108.9 |
C2—C3—C4 | 121.55 (19) | H17A—C17—H17B | 107.7 |
C2—C3—H3 | 119.2 | C17—C18—C19 | 113.20 (16) |
C4—C3—H3 | 119.2 | C17—C18—H18A | 108.9 |
C5—C4—C3 | 117.70 (19) | C19—C18—H18A | 108.9 |
C5—C4—C7 | 118.95 (17) | C17—C18—H18B | 108.9 |
C3—C4—C7 | 123.30 (17) | C19—C18—H18B | 108.9 |
C6—C5—C4 | 121.2 (2) | H18A—C18—H18B | 107.8 |
C6—C5—H5 | 119.4 | N1—C19—C18 | 113.48 (15) |
C4—C5—H5 | 119.4 | N1—C19—H19A | 108.9 |
C1—C6—C5 | 119.4 (2) | C18—C19—H19A | 108.9 |
C1—C6—H6 | 120.3 | N1—C19—H19B | 108.9 |
C5—C6—H6 | 120.3 | C18—C19—H19B | 108.9 |
O1—C7—C8 | 121.14 (18) | H19A—C19—H19B | 107.7 |
O1—C7—C4 | 120.06 (17) | N1—C20—C21 | 110.35 (15) |
C8—C7—C4 | 118.80 (15) | N1—C20—H20 | 124.8 |
C9—C8—C7 | 120.95 (16) | C21—C20—H20 | 124.8 |
C9—C8—H8 | 119.5 | C20—C21—C23 | 106.59 (14) |
C7—C8—H8 | 119.5 | C20—C21—C22 | 124.54 (17) |
C8—C9—C10 | 131.29 (16) | C23—C21—C22 | 128.79 (16) |
C8—C9—H9 | 114.4 | O3—C22—C21 | 125.64 (18) |
C10—C9—H9 | 114.4 | O3—C22—H22 | 117.2 |
C11—C10—C15 | 116.86 (16) | C21—C22—H22 | 117.2 |
C11—C10—C9 | 117.85 (15) | C28—C23—C24 | 119.25 (15) |
C15—C10—C9 | 125.28 (15) | C28—C23—C21 | 134.26 (15) |
C12—C11—C10 | 122.66 (17) | C24—C23—C21 | 106.49 (14) |
C12—C11—H11 | 118.7 | N1—C24—C25 | 129.92 (15) |
C10—C11—H11 | 118.7 | N1—C24—C23 | 107.87 (14) |
C11—C12—C13 | 119.26 (18) | C25—C24—C23 | 122.20 (15) |
C11—C12—H12 | 120.4 | C26—C25—C24 | 117.22 (17) |
C13—C12—H12 | 120.4 | C26—C25—H25 | 121.4 |
C12—C13—C14 | 120.61 (19) | C24—C25—H25 | 121.4 |
C12—C13—H13 | 119.7 | C25—C26—C27 | 121.62 (18) |
C14—C13—H13 | 119.7 | C25—C26—H26 | 119.2 |
C13—C14—C15 | 120.43 (17) | C27—C26—H26 | 119.2 |
C13—C14—H14 | 119.8 | C28—C27—C26 | 121.32 (17) |
C15—C14—H14 | 119.8 | C28—C27—H27 | 119.3 |
O2—C15—C14 | 123.39 (15) | C26—C27—H27 | 119.3 |
O2—C15—C10 | 116.42 (15) | C27—C28—C23 | 118.38 (16) |
C14—C15—C10 | 120.19 (16) | C27—C28—H28 | 120.8 |
O2—C16—C17 | 106.49 (16) | C23—C28—H28 | 120.8 |
O2—C16—H16A | 110.4 | C20—N1—C24 | 108.69 (14) |
C17—C16—H16A | 110.4 | C20—N1—C19 | 125.67 (15) |
O2—C16—H16B | 110.4 | C24—N1—C19 | 125.58 (15) |
C17—C16—H16B | 110.4 | C15—O2—C16 | 118.49 (14) |
C6—C1—C2—C3 | −3.7 (4) | C17—C18—C19—N1 | −60.3 (2) |
Cl1—C1—C2—C3 | 176.83 (19) | N1—C20—C21—C23 | 0.29 (19) |
C1—C2—C3—C4 | 1.4 (4) | N1—C20—C21—C22 | −176.78 (16) |
C2—C3—C4—C5 | 1.9 (3) | C20—C21—C22—O3 | 176.1 (2) |
C2—C3—C4—C7 | 179.3 (2) | C23—C21—C22—O3 | −0.3 (3) |
C3—C4—C5—C6 | −2.9 (3) | C20—C21—C23—C28 | 179.59 (18) |
C7—C4—C5—C6 | 179.5 (2) | C22—C21—C23—C28 | −3.5 (3) |
C2—C1—C6—C5 | 2.7 (4) | C20—C21—C23—C24 | −0.24 (18) |
Cl1—C1—C6—C5 | −177.9 (2) | C22—C21—C23—C24 | 176.67 (17) |
C4—C5—C6—C1 | 0.7 (4) | C28—C23—C24—N1 | −179.75 (14) |
C5—C4—C7—O1 | 12.0 (3) | C21—C23—C24—N1 | 0.11 (17) |
C3—C4—C7—O1 | −165.4 (2) | C28—C23—C24—C25 | 0.9 (2) |
C5—C4—C7—C8 | −167.82 (19) | C21—C23—C24—C25 | −179.28 (15) |
C3—C4—C7—C8 | 14.8 (3) | N1—C24—C25—C26 | −179.55 (17) |
O1—C7—C8—C9 | 2.8 (3) | C23—C24—C25—C26 | −0.3 (3) |
C4—C7—C8—C9 | −177.42 (18) | C24—C25—C26—C27 | −0.6 (3) |
C7—C8—C9—C10 | −178.63 (18) | C25—C26—C27—C28 | 0.9 (3) |
C8—C9—C10—C11 | 172.6 (2) | C26—C27—C28—C23 | −0.3 (3) |
C8—C9—C10—C15 | −8.3 (3) | C24—C23—C28—C27 | −0.5 (2) |
C15—C10—C11—C12 | 0.3 (3) | C21—C23—C28—C27 | 179.67 (18) |
C9—C10—C11—C12 | 179.50 (18) | C21—C20—N1—C24 | −0.22 (19) |
C10—C11—C12—C13 | −0.3 (3) | C21—C20—N1—C19 | 177.14 (15) |
C11—C12—C13—C14 | −0.3 (4) | C25—C24—N1—C20 | 179.39 (17) |
C12—C13—C14—C15 | 0.9 (4) | C23—C24—N1—C20 | 0.06 (18) |
C13—C14—C15—O2 | 179.22 (19) | C25—C24—N1—C19 | 2.0 (3) |
C13—C14—C15—C10 | −0.9 (3) | C23—C24—N1—C19 | −177.31 (15) |
C11—C10—C15—O2 | −179.82 (15) | C18—C19—N1—C20 | 109.0 (2) |
C9—C10—C15—O2 | 1.1 (3) | C18—C19—N1—C24 | −74.1 (2) |
C11—C10—C15—C14 | 0.3 (3) | C14—C15—O2—C16 | 5.0 (3) |
C9—C10—C15—C14 | −178.79 (18) | C10—C15—O2—C16 | −174.84 (17) |
O2—C16—C17—C18 | 68.2 (2) | C17—C16—O2—C15 | 176.03 (16) |
C16—C17—C18—C19 | −175.60 (16) |
D—H···A | D—H | H···A | D···A | D—H···A |
C8—H8···O2 | 0.93 | 2.26 | 2.850 (2) | 121 |
C9—H9···O1 | 0.93 | 2.42 | 2.791 (2) | 104 |
C20—H20···O1i | 0.93 | 2.52 | 3.374 (2) | 152 |
Symmetry code: (i) −x, −y+1, −z+2. |
Experimental details
Crystal data | |
Chemical formula | C28H24ClNO3 |
Mr | 457.93 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 298 |
a, b, c (Å) | 8.7126 (3), 19.1311 (6), 13.9338 (4) |
β (°) | 93.198 (2) |
V (Å3) | 2318.89 (13) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.20 |
Crystal size (mm) | 0.20 × 0.20 × 0.20 |
Data collection | |
Diffractometer | Bruker SMART APEXII area-detector diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 22253, 5782, 4060 |
Rint | 0.026 |
(sin θ/λ)max (Å−1) | 0.668 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.145, 1.03 |
No. of reflections | 5782 |
No. of parameters | 298 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.39, −0.46 |
Computer programs: APEX2 (Bruker, 2008), SAINT (Bruker, 2008), SHELXS97 (Sheldrick, 2008), ORTEP-3 for Windowa (Farrugia, 2012) and PLATON (Spek, 2009), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009) and publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
C8—H8···O2 | 0.93 | 2.26 | 2.850 (2) | 120.8 |
C20—H20···O1i | 0.93 | 2.52 | 3.374 (2) | 152.0 |
Symmetry code: (i) −x, −y+1, −z+2. |
Acknowledgements
The authors acknowledge the Technology Business Incubator (TBI), CAS in Crystallography, University of Madras, Chennai 600 025, India, for the data collection.
References
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Indole derivatives exhibit antioxidant (Olgen & Coban, 2003), central nervous system depressant and muscle relaxant properties (Ho et al., 1986), antifungicidal (Joshi & Chand, 1982), antimicrobial, antiinflammatory and antiimplantation (Rodriguez et al., 1985), antibacterial (Okabe & Adachi, 1998) and antihypertensive (Merck, 1973) activities. Against this background, the title compound was chosen for X-ray structure analysis (Fig. 1).
The indole ring is planar and it makes the dihedral angle with the chlorophenyl ring of 78.62 (05)°.
The sum of the bond angles around N1 [359.94 (44)°] indicates sp2 hybridization (Beddoes et al., 1986). The geometric parameters of the title molecule (Fig. 1) agree well with reported similar structure (Paramasivam et al., 2012).
The molecular structure is stabilised by a weak C—H···O intramolecular interaction and the crystal packing reveals a weak C—H···O hydrogen bonds (Fig. 2). In the crystal structure, the molecules at (x, y, z) and (- x, - y + 1, - z + 2) are linked by C20—H20···O1 hydrogen bond, generating a centrosymmetric dimeric ring motif R22(14) (Bernstein et al., 1995).