organic compounds
3-Bromomethyl-4-methoxy-2-(2-nitrophenyl)-9-phenylsulfonyl-9H-carbazole
aDepartment of Physics, RKM Vivekananda College (Autonomous), Chennai 600 004, India, and bDepartment of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
*Correspondence e-mail: ksethusankar@yahoo.co.in
In the title compound, C26H19BrN2O5S, the carbazole tricycle is essentially planar, with the largest deviation being 0.126 (3) Å for the C atom connected to the nitrophenyl group. The carbazole moiety is almost orthogonal to the benzene rings of the adjacent phenylsulfonyl and nitrophenyl groups, making dihedral angles of 85.43 (15) and 88.62 (12)°, respectively. The molecular conformation is stabilized by two C—H⋯O hydrogen bonds involving the sulfone group, which form similar six-membered rings. In the crystal, molecules symmetrically related by a glide plane are linked in C(6) chains parallel to [001] by C—H⋯O hydrogen bonds formed with the participation of the nitro group. The chains are reinforced by additional C—H⋯π interactions.
CCDC reference: 1003645
Related literature
For the uses and biological importance of carbazoles, see: Itoigawa et al. (2000); Ramsewak et al. (1999). For electronic properties and applications, see: Friend et al. (1999); Zhang et al. (2004). For related structures, see: Narayanan et al. (2014); Gopinath et al. (2014). For the Thorpe–Ingold effect, see: Bassindale (1984). For bond-length distortions, see: Allen et al. (1987). For graph-set notation, see: Bernstein et al. (1995).
Experimental
Crystal data
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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 Windows (Farrugia, 2012) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supporting information
CCDC reference: 1003645
10.1107/S160053681401143X/ld2127sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053681401143X/ld2127Isup2.hkl
Supporting information file. DOI: 10.1107/S160053681401143X/ld2127Isup3.cml
A mixture of 4-methoxy-3-methyl-2-(2-nitrophenyl)-9- (phenylsulfonyl)-9H-carbazole(1.65 g, 3.5 mmol) and NBS(0.93 g, 5.25 mmol) in dry CCl4(100 ml) containing a catalytic amount of AIBN(50 mg) was refluxed for 1 h. Then, it was cooled to room temperature and the additional equivalent of NBS(0.93 g, 5.25 mmol) and AIBN(50 mg) were added and allowed to reflux for 1 h. Then the reaction mixture was cooled to room temperature and the floated succinimide was filtered off through Na2So4 pad and washed with hot CCl4 (20 ml). The subsequent removal of solvent in vacuo followed by tituration of the crude product with MeOH(10 ml) afforded 3-(bromomethyl)-4-methoxy-2-(2-nitrophenyl)-9-(phenylsulfonyl) -9Hcarbazole(1.71 g, 89%) as a dull white solid. Single crystals suitable for X-ray diffraction was prepared by slow evapouration of a solution of the title compound in methanol at room temperature.
m.p. = 483 K–485 K.
The positions of the hydrogen atoms were localized from the difference electron density maps and the distances were geometrically constrained. The hydrogen atoms bound to the C atoms are treated as riding atoms, with d(C–H) = 0.93 Å and Uiso(H) = 1.2Ueq (c) for aromatic and methoxy group, d(C–H) = 0.96 Å and Uiso(H) = 1.5Ueq(c) for the bromomethyl group. The rotation angle for the methyl group was optimized by least squares.
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 Windows (Farrugia, 2012) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).Fig. 1. The molecular Structure of the title compound with the atom numbering scheme, displacement ellipsoids are drawn at 30% probability level. H atoms are present as small spheres of arbitrary radius. | |
Fig. 2. The packing arrangement of the title compound viewed down a axis. The dashed line indicate the C—H···O intermolecular interaction. Symmetry Code: (i) x, -y + 3/2, +z - 1/2 | |
Fig. 3. Part of the crystal packing of the title compound viewed down b axis. the dashed lines indicate C22—H22···Cg1ii interactions, where the Cg1 is the centre of the gravity of (C7–C12). Symmetry code: (ii) x, -y + 1/2, +z - 3/2 |
C26H19BrN2O5S | F(000) = 1120 |
Mr = 551.40 | Dx = 1.588 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 6652 reflections |
a = 10.3176 (4) Å | θ = 2.0–27.0° |
b = 14.4431 (6) Å | µ = 1.92 mm−1 |
c = 15.4901 (6) Å | T = 296 K |
β = 92.329 (2)° | Block, white |
V = 2306.40 (16) Å3 | 0.35 × 0.30 × 0.25 mm |
Z = 4 |
Bruker Kappa APEXII CCD diffractometer | 6652 independent reflections |
Radiation source: fine-focus sealed tube | 3939 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.037 |
ω &ϕ scans | θmax = 30.0°, θmin = 2.0° |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | h = −14→13 |
Tmin = 0.901, Tmax = 0.905 | k = −20→19 |
28756 measured reflections | l = −17→21 |
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)] = 0.050 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.161 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0816P)2 + 0.8074P] where P = (Fo2 + 2Fc2)/3 |
6652 reflections | (Δ/σ)max = 0.001 |
317 parameters | Δρmax = 0.42 e Å−3 |
0 restraints | Δρmin = −0.74 e Å−3 |
C26H19BrN2O5S | V = 2306.40 (16) Å3 |
Mr = 551.40 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 10.3176 (4) Å | µ = 1.92 mm−1 |
b = 14.4431 (6) Å | T = 296 K |
c = 15.4901 (6) Å | 0.35 × 0.30 × 0.25 mm |
β = 92.329 (2)° |
Bruker Kappa APEXII CCD diffractometer | 6652 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | 3939 reflections with I > 2σ(I) |
Tmin = 0.901, Tmax = 0.905 | Rint = 0.037 |
28756 measured reflections |
R[F2 > 2σ(F2)] = 0.050 | 0 restraints |
wR(F2) = 0.161 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.42 e Å−3 |
6652 reflections | Δρmin = −0.74 e Å−3 |
317 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 | 0.5239 (3) | 0.9609 (2) | 0.16131 (19) | 0.0406 (6) | |
C2 | 0.4792 (3) | 1.0177 (2) | 0.2262 (2) | 0.0545 (8) | |
H2 | 0.4971 | 1.0808 | 0.2272 | 0.065* | |
C3 | 0.4077 (3) | 0.9774 (3) | 0.2886 (2) | 0.0624 (9) | |
H3 | 0.3769 | 1.0139 | 0.3328 | 0.075* | |
C4 | 0.3802 (3) | 0.8829 (3) | 0.2873 (2) | 0.0597 (9) | |
H4 | 0.3326 | 0.8573 | 0.3310 | 0.072* | |
C5 | 0.4221 (3) | 0.8274 (2) | 0.2225 (2) | 0.0488 (7) | |
H5 | 0.4023 | 0.7645 | 0.2214 | 0.059* | |
C6 | 0.4952 (3) | 0.8669 (2) | 0.15814 (19) | 0.0393 (6) | |
C7 | 0.5591 (3) | 0.82841 (18) | 0.08476 (18) | 0.0363 (6) | |
C8 | 0.6265 (3) | 0.89955 (18) | 0.04518 (18) | 0.0368 (6) | |
C9 | 0.7036 (3) | 0.88394 (19) | −0.02381 (18) | 0.0396 (6) | |
H9 | 0.7454 | 0.9326 | −0.0505 | 0.048* | |
C10 | 0.7173 (3) | 0.79316 (19) | −0.05237 (18) | 0.0366 (6) | |
C11 | 0.6474 (3) | 0.72050 (18) | −0.01624 (17) | 0.0370 (6) | |
C12 | 0.5667 (3) | 0.73930 (18) | 0.05171 (18) | 0.0363 (6) | |
C13 | 0.3650 (3) | 0.6679 (3) | 0.0589 (2) | 0.0654 (10) | |
H13A | 0.3240 | 0.7248 | 0.0748 | 0.098* | |
H13B | 0.3216 | 0.6168 | 0.0848 | 0.098* | |
H13C | 0.3600 | 0.6614 | −0.0028 | 0.098* | |
C14 | 0.8317 (3) | 1.0435 (2) | 0.1570 (2) | 0.0443 (7) | |
C15 | 0.9401 (3) | 1.0058 (2) | 0.1228 (2) | 0.0546 (8) | |
H15 | 0.9433 | 0.9957 | 0.0636 | 0.065* | |
C16 | 1.0440 (4) | 0.9831 (3) | 0.1767 (3) | 0.0678 (10) | |
H16 | 1.1179 | 0.9574 | 0.1541 | 0.081* | |
C17 | 1.0389 (4) | 0.9983 (3) | 0.2642 (3) | 0.0755 (12) | |
H17 | 1.1099 | 0.9838 | 0.3006 | 0.091* | |
C18 | 0.9288 (4) | 1.0349 (4) | 0.2979 (3) | 0.0779 (12) | |
H18 | 0.9251 | 1.0441 | 0.3572 | 0.093* | |
C19 | 0.8250 (4) | 1.0576 (3) | 0.2448 (2) | 0.0641 (10) | |
H19 | 0.7505 | 1.0824 | 0.2675 | 0.077* | |
C20 | 0.8034 (3) | 0.77497 (18) | −0.12588 (17) | 0.0372 (6) | |
C21 | 0.7515 (3) | 0.7773 (2) | −0.2098 (2) | 0.0536 (8) | |
H21 | 0.6637 | 0.7901 | −0.2192 | 0.064* | |
C22 | 0.8278 (4) | 0.7609 (3) | −0.2803 (2) | 0.0641 (10) | |
H22 | 0.7906 | 0.7626 | −0.3360 | 0.077* | |
C23 | 0.9561 (4) | 0.7425 (3) | −0.2683 (2) | 0.0633 (10) | |
H23 | 1.0071 | 0.7328 | −0.3157 | 0.076* | |
C24 | 1.0099 (3) | 0.7381 (2) | −0.1871 (2) | 0.0531 (8) | |
H24 | 1.0975 | 0.7240 | −0.1786 | 0.064* | |
C25 | 0.9345 (3) | 0.75469 (19) | −0.11715 (17) | 0.0386 (6) | |
C26 | 0.6569 (3) | 0.6230 (2) | −0.0488 (2) | 0.0472 (7) | |
H26A | 0.6094 | 0.5762 | −0.0237 | 0.057* | |
H26B | 0.7103 | 0.6095 | −0.0940 | 0.057* | |
N1 | 0.6006 (2) | 0.98366 (15) | 0.08997 (16) | 0.0407 (5) | |
N2 | 1.0011 (3) | 0.7494 (2) | −0.03198 (18) | 0.0520 (7) | |
O1 | 0.9650 (3) | 0.7991 (2) | 0.02487 (15) | 0.0771 (8) | |
O2 | 1.0921 (3) | 0.6960 (2) | −0.0230 (2) | 0.0881 (9) | |
O3 | 0.6318 (3) | 1.14928 (15) | 0.12702 (17) | 0.0634 (6) | |
O4 | 0.7410 (3) | 1.08277 (15) | 0.00314 (15) | 0.0575 (6) | |
O5 | 0.4979 (2) | 0.66924 (14) | 0.08849 (14) | 0.0482 (5) | |
S1 | 0.69953 (8) | 1.07490 (5) | 0.08859 (5) | 0.0460 (2) | |
Br1 | 0.80182 (4) | 0.55845 (2) | 0.01227 (2) | 0.06233 (16) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0317 (14) | 0.0433 (15) | 0.0466 (16) | 0.0042 (11) | 0.0016 (12) | −0.0051 (13) |
C2 | 0.0420 (18) | 0.0529 (19) | 0.069 (2) | 0.0071 (14) | 0.0026 (16) | −0.0164 (17) |
C3 | 0.0446 (19) | 0.082 (3) | 0.061 (2) | 0.0042 (18) | 0.0081 (16) | −0.021 (2) |
C4 | 0.0427 (18) | 0.085 (3) | 0.0519 (19) | −0.0037 (17) | 0.0084 (15) | −0.0034 (18) |
C5 | 0.0413 (17) | 0.0549 (18) | 0.0504 (18) | −0.0038 (14) | 0.0027 (14) | −0.0001 (15) |
C6 | 0.0295 (14) | 0.0421 (15) | 0.0459 (15) | 0.0027 (11) | −0.0025 (12) | −0.0004 (12) |
C7 | 0.0283 (13) | 0.0367 (14) | 0.0434 (15) | 0.0008 (10) | −0.0047 (11) | 0.0007 (12) |
C8 | 0.0345 (14) | 0.0303 (13) | 0.0452 (15) | 0.0016 (11) | −0.0042 (12) | −0.0011 (11) |
C9 | 0.0397 (15) | 0.0339 (14) | 0.0453 (16) | −0.0051 (11) | 0.0034 (13) | 0.0009 (12) |
C10 | 0.0313 (14) | 0.0369 (14) | 0.0412 (15) | −0.0007 (11) | −0.0038 (11) | −0.0035 (12) |
C11 | 0.0383 (14) | 0.0300 (13) | 0.0421 (15) | 0.0004 (11) | −0.0063 (12) | −0.0038 (11) |
C12 | 0.0344 (14) | 0.0313 (13) | 0.0427 (15) | −0.0041 (10) | −0.0042 (12) | 0.0032 (11) |
C13 | 0.055 (2) | 0.077 (2) | 0.064 (2) | −0.0356 (19) | 0.0000 (18) | −0.0043 (19) |
C14 | 0.0468 (17) | 0.0392 (15) | 0.0472 (17) | −0.0111 (12) | 0.0052 (14) | −0.0028 (13) |
C15 | 0.059 (2) | 0.056 (2) | 0.0495 (18) | −0.0072 (16) | 0.0124 (16) | −0.0026 (15) |
C16 | 0.054 (2) | 0.070 (2) | 0.080 (3) | 0.0002 (18) | 0.0105 (19) | 0.001 (2) |
C17 | 0.061 (3) | 0.088 (3) | 0.077 (3) | −0.011 (2) | −0.013 (2) | 0.008 (2) |
C18 | 0.068 (3) | 0.119 (4) | 0.046 (2) | −0.010 (2) | 0.0014 (19) | −0.003 (2) |
C19 | 0.052 (2) | 0.091 (3) | 0.050 (2) | −0.0078 (18) | 0.0075 (17) | −0.0119 (18) |
C20 | 0.0411 (15) | 0.0327 (13) | 0.0376 (14) | −0.0031 (11) | −0.0020 (12) | −0.0027 (11) |
C21 | 0.0506 (18) | 0.0586 (19) | 0.0505 (18) | −0.0020 (15) | −0.0117 (15) | −0.0032 (15) |
C22 | 0.083 (3) | 0.074 (2) | 0.0340 (17) | −0.007 (2) | −0.0107 (17) | −0.0052 (16) |
C23 | 0.078 (3) | 0.071 (2) | 0.0413 (18) | −0.0043 (19) | 0.0129 (18) | −0.0095 (16) |
C24 | 0.0504 (19) | 0.058 (2) | 0.0514 (19) | 0.0013 (15) | 0.0104 (15) | −0.0059 (15) |
C25 | 0.0405 (15) | 0.0413 (15) | 0.0337 (14) | −0.0024 (12) | −0.0018 (12) | 0.0004 (11) |
C26 | 0.0557 (18) | 0.0365 (15) | 0.0492 (17) | −0.0043 (13) | 0.0000 (14) | −0.0066 (13) |
N1 | 0.0402 (13) | 0.0304 (11) | 0.0515 (14) | 0.0017 (10) | 0.0030 (11) | −0.0057 (10) |
N2 | 0.0368 (14) | 0.0698 (18) | 0.0488 (16) | −0.0042 (13) | −0.0049 (12) | 0.0064 (14) |
O1 | 0.0648 (17) | 0.127 (3) | 0.0389 (13) | 0.0121 (16) | −0.0058 (12) | −0.0149 (15) |
O2 | 0.0648 (18) | 0.109 (2) | 0.088 (2) | 0.0272 (17) | −0.0267 (16) | 0.0025 (17) |
O3 | 0.0786 (17) | 0.0319 (11) | 0.0798 (17) | 0.0056 (11) | 0.0028 (13) | −0.0074 (11) |
O4 | 0.0847 (17) | 0.0381 (11) | 0.0497 (13) | −0.0083 (11) | 0.0030 (12) | 0.0064 (9) |
O5 | 0.0499 (12) | 0.0393 (11) | 0.0554 (12) | −0.0096 (9) | 0.0016 (10) | 0.0074 (9) |
S1 | 0.0590 (5) | 0.0277 (3) | 0.0511 (4) | −0.0022 (3) | 0.0013 (4) | −0.0011 (3) |
Br1 | 0.0740 (3) | 0.0455 (2) | 0.0674 (3) | 0.01137 (16) | 0.00214 (19) | 0.00155 (15) |
C1—C2 | 1.390 (4) | C14—S1 | 1.752 (3) |
C1—C6 | 1.391 (4) | C15—C16 | 1.371 (5) |
C1—N1 | 1.423 (4) | C15—H15 | 0.9300 |
C2—C3 | 1.369 (5) | C16—C17 | 1.376 (6) |
C2—H2 | 0.9300 | C16—H16 | 0.9300 |
C3—C4 | 1.394 (6) | C17—C18 | 1.374 (6) |
C3—H3 | 0.9300 | C17—H17 | 0.9300 |
C4—C5 | 1.368 (5) | C18—C19 | 1.365 (6) |
C4—H4 | 0.9300 | C18—H18 | 0.9300 |
C5—C6 | 1.397 (4) | C19—H19 | 0.9300 |
C5—H5 | 0.9300 | C20—C25 | 1.385 (4) |
C6—C7 | 1.448 (4) | C20—C21 | 1.386 (4) |
C7—C12 | 1.389 (4) | C21—C22 | 1.393 (5) |
C7—C8 | 1.396 (4) | C21—H21 | 0.9300 |
C8—C9 | 1.377 (4) | C22—C23 | 1.355 (5) |
C8—N1 | 1.429 (4) | C22—H22 | 0.9300 |
C9—C10 | 1.393 (4) | C23—C24 | 1.355 (5) |
C9—H9 | 0.9300 | C23—H23 | 0.9300 |
C10—C11 | 1.402 (4) | C24—C25 | 1.381 (4) |
C10—C20 | 1.496 (4) | C24—H24 | 0.9300 |
C11—C12 | 1.395 (4) | C25—N2 | 1.465 (4) |
C11—C26 | 1.500 (4) | C26—Br1 | 1.971 (3) |
C12—O5 | 1.373 (3) | C26—H26A | 0.9300 |
C13—O5 | 1.428 (4) | C26—H26B | 0.9300 |
C13—H13A | 0.9600 | N1—S1 | 1.668 (2) |
C13—H13B | 0.9600 | N2—O1 | 1.207 (4) |
C13—H13C | 0.9600 | N2—O2 | 1.218 (4) |
C14—C15 | 1.370 (5) | O3—S1 | 1.425 (2) |
C14—C19 | 1.379 (5) | O4—S1 | 1.412 (2) |
C2—C1—C6 | 121.7 (3) | C15—C16—H16 | 120.0 |
C2—C1—N1 | 129.6 (3) | C17—C16—H16 | 120.0 |
C6—C1—N1 | 108.8 (2) | C18—C17—C16 | 120.1 (4) |
C3—C2—C1 | 117.6 (3) | C18—C17—H17 | 120.0 |
C3—C2—H2 | 121.2 | C16—C17—H17 | 120.0 |
C1—C2—H2 | 121.2 | C19—C18—C17 | 120.2 (4) |
C2—C3—C4 | 121.4 (3) | C19—C18—H18 | 119.9 |
C2—C3—H3 | 119.3 | C17—C18—H18 | 119.9 |
C4—C3—H3 | 119.3 | C18—C19—C14 | 119.3 (4) |
C5—C4—C3 | 121.0 (3) | C18—C19—H19 | 120.3 |
C5—C4—H4 | 119.5 | C14—C19—H19 | 120.3 |
C3—C4—H4 | 119.5 | C25—C20—C21 | 115.8 (3) |
C4—C5—C6 | 118.7 (3) | C25—C20—C10 | 124.8 (2) |
C4—C5—H5 | 120.7 | C21—C20—C10 | 119.4 (3) |
C6—C5—H5 | 120.7 | C20—C21—C22 | 121.5 (3) |
C1—C6—C5 | 119.6 (3) | C20—C21—H21 | 119.3 |
C1—C6—C7 | 107.4 (2) | C22—C21—H21 | 119.3 |
C5—C6—C7 | 132.9 (3) | C23—C22—C21 | 120.4 (3) |
C12—C7—C8 | 118.9 (3) | C23—C22—H22 | 119.8 |
C12—C7—C6 | 132.8 (3) | C21—C22—H22 | 119.8 |
C8—C7—C6 | 108.3 (2) | C22—C23—C24 | 119.8 (3) |
C9—C8—C7 | 122.3 (3) | C22—C23—H23 | 120.1 |
C9—C8—N1 | 129.9 (3) | C24—C23—H23 | 120.1 |
C7—C8—N1 | 107.8 (2) | C23—C24—C25 | 119.9 (3) |
C8—C9—C10 | 118.0 (3) | C23—C24—H24 | 120.1 |
C8—C9—H9 | 121.0 | C25—C24—H24 | 120.1 |
C10—C9—H9 | 121.0 | C24—C25—C20 | 122.6 (3) |
C9—C10—C11 | 121.2 (3) | C24—C25—N2 | 116.0 (3) |
C9—C10—C20 | 118.6 (2) | C20—C25—N2 | 121.3 (3) |
C11—C10—C20 | 120.2 (2) | C11—C26—Br1 | 110.0 (2) |
C12—C11—C10 | 119.2 (2) | C11—C26—H26A | 120.0 |
C12—C11—C26 | 119.0 (3) | Br1—C26—H26A | 81.8 |
C10—C11—C26 | 121.8 (3) | C11—C26—H26B | 120.0 |
O5—C12—C7 | 119.5 (3) | Br1—C26—H26B | 78.5 |
O5—C12—C11 | 120.3 (2) | H26A—C26—H26B | 120.0 |
C7—C12—C11 | 120.2 (2) | C1—N1—C8 | 107.6 (2) |
O5—C13—H13A | 109.5 | C1—N1—S1 | 123.50 (19) |
O5—C13—H13B | 109.5 | C8—N1—S1 | 122.6 (2) |
H13A—C13—H13B | 109.5 | O1—N2—O2 | 123.5 (3) |
O5—C13—H13C | 109.5 | O1—N2—C25 | 118.6 (3) |
H13A—C13—H13C | 109.5 | O2—N2—C25 | 117.9 (3) |
H13B—C13—H13C | 109.5 | C12—O5—C13 | 112.5 (2) |
C15—C14—C19 | 121.0 (3) | O4—S1—O3 | 120.22 (15) |
C15—C14—S1 | 119.8 (2) | O4—S1—N1 | 106.54 (14) |
C19—C14—S1 | 119.3 (3) | O3—S1—N1 | 106.23 (14) |
C14—C15—C16 | 119.3 (3) | O4—S1—C14 | 109.25 (16) |
C14—C15—H15 | 120.3 | O3—S1—C14 | 108.98 (15) |
C16—C15—H15 | 120.3 | N1—S1—C14 | 104.43 (13) |
C15—C16—C17 | 120.1 (4) | ||
C6—C1—C2—C3 | 1.5 (5) | C9—C10—C20—C25 | 90.5 (4) |
N1—C1—C2—C3 | −179.1 (3) | C11—C10—C20—C25 | −92.5 (3) |
C1—C2—C3—C4 | −0.3 (5) | C9—C10—C20—C21 | −90.0 (3) |
C2—C3—C4—C5 | −1.0 (5) | C11—C10—C20—C21 | 87.0 (4) |
C3—C4—C5—C6 | 1.0 (5) | C25—C20—C21—C22 | −0.5 (5) |
C2—C1—C6—C5 | −1.5 (4) | C10—C20—C21—C22 | 179.9 (3) |
N1—C1—C6—C5 | 179.0 (3) | C20—C21—C22—C23 | −0.3 (6) |
C2—C1—C6—C7 | −178.4 (3) | C21—C22—C23—C24 | 1.3 (6) |
N1—C1—C6—C7 | 2.0 (3) | C22—C23—C24—C25 | −1.6 (6) |
C4—C5—C6—C1 | 0.2 (4) | C23—C24—C25—C20 | 0.7 (5) |
C4—C5—C6—C7 | 176.2 (3) | C23—C24—C25—N2 | −179.4 (3) |
C1—C6—C7—C12 | 178.5 (3) | C21—C20—C25—C24 | 0.3 (4) |
C5—C6—C7—C12 | 2.1 (5) | C10—C20—C25—C24 | 179.8 (3) |
C1—C6—C7—C8 | 0.6 (3) | C21—C20—C25—N2 | −179.5 (3) |
C5—C6—C7—C8 | −175.8 (3) | C10—C20—C25—N2 | 0.0 (4) |
C12—C7—C8—C9 | −2.1 (4) | C12—C11—C26—Br1 | −92.0 (3) |
C6—C7—C8—C9 | 176.1 (3) | C10—C11—C26—Br1 | 88.1 (3) |
C12—C7—C8—N1 | 178.8 (2) | C2—C1—N1—C8 | 176.7 (3) |
C6—C7—C8—N1 | −2.9 (3) | C6—C1—N1—C8 | −3.9 (3) |
C7—C8—C9—C10 | −2.2 (4) | C2—C1—N1—S1 | 24.2 (4) |
N1—C8—C9—C10 | 176.6 (3) | C6—C1—N1—S1 | −156.4 (2) |
C8—C9—C10—C11 | 4.5 (4) | C9—C8—N1—C1 | −174.8 (3) |
C8—C9—C10—C20 | −178.5 (2) | C7—C8—N1—C1 | 4.2 (3) |
C9—C10—C11—C12 | −2.5 (4) | C9—C8—N1—S1 | −22.0 (4) |
C20—C10—C11—C12 | −179.4 (2) | C7—C8—N1—S1 | 157.0 (2) |
C9—C10—C11—C26 | 177.4 (3) | C24—C25—N2—O1 | 147.7 (3) |
C20—C10—C11—C26 | 0.5 (4) | C20—C25—N2—O1 | −32.5 (4) |
C8—C7—C12—O5 | −178.1 (2) | C24—C25—N2—O2 | −30.9 (4) |
C6—C7—C12—O5 | 4.2 (5) | C20—C25—N2—O2 | 148.9 (3) |
C8—C7—C12—C11 | 4.2 (4) | C7—C12—O5—C13 | 81.0 (3) |
C6—C7—C12—C11 | −173.5 (3) | C11—C12—O5—C13 | −101.3 (3) |
C10—C11—C12—O5 | −179.6 (2) | C1—N1—S1—O4 | −170.5 (2) |
C26—C11—C12—O5 | 0.5 (4) | C8—N1—S1—O4 | 41.0 (3) |
C10—C11—C12—C7 | −2.0 (4) | C1—N1—S1—O3 | −41.2 (3) |
C26—C11—C12—C7 | 178.1 (3) | C8—N1—S1—O3 | 170.3 (2) |
C19—C14—C15—C16 | −0.9 (5) | C1—N1—S1—C14 | 73.9 (2) |
S1—C14—C15—C16 | 178.7 (3) | C8—N1—S1—C14 | −74.6 (2) |
C14—C15—C16—C17 | −0.1 (6) | C15—C14—S1—O4 | −18.4 (3) |
C15—C16—C17—C18 | 1.1 (7) | C19—C14—S1—O4 | 161.3 (3) |
C16—C17—C18—C19 | −1.0 (7) | C15—C14—S1—O3 | −151.5 (3) |
C17—C18—C19—C14 | 0.0 (7) | C19—C14—S1—O3 | 28.1 (3) |
C15—C14—C19—C18 | 0.9 (5) | C15—C14—S1—N1 | 95.3 (3) |
S1—C14—C19—C18 | −178.7 (3) | C19—C14—S1—N1 | −85.1 (3) |
Cg1 is the centroid of the C7–C12 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O3 | 0.93 | 2.34 | 2.941 (4) | 122 |
C9—H9···O4 | 0.93 | 2.32 | 2.925 (4) | 122 |
C23—H23···O1i | 0.93 | 2.53 | 3.264 (4) | 136 |
C22—H22···Cg1ii | 0.93 | 2.95 | 3.810 (4) | 155 |
Symmetry codes: (i) x, −y+3/2, z−1/2; (ii) x, −y+1/2, z−3/2. |
Cg1 is the centroid of the C7–C12 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O3 | 0.93 | 2.34 | 2.941 (4) | 122 |
C9—H9···O4 | 0.93 | 2.32 | 2.925 (4) | 122 |
C23—H23···O1i | 0.93 | 2.53 | 3.264 (4) | 135.7 |
C22—H22···Cg1ii | 0.93 | 2.95 | 3.810 (4) | 155 |
Symmetry codes: (i) x, −y+3/2, z−1/2; (ii) x, −y+1/2, z−3/2. |
Acknowledgements
SG and KS thank Dr Babu Varghese, Senior Scientific Officer, SAIF, IIT, Madras, India for the data collection.
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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.
Carbazole and its derivatives have become quite attractive compounds owing to their applications in pharmacy and molecular electronics. It has been reported that carbazole derivatives exihibit various biological activities such as antitumor and antioxidative (Itoigawa, et al. 2000), and anti- inflammatory and anti-mutagenic (Ramsewak, et al. 1999). They also exhibit electroactivity and luminenscence and are considered to be potential candidates for electronic applications such as colour displays, organic, semi- conductors, laser and solar cells (Friend, et al. 1999; Zhang et al. 2004).
The title compound, Fig. 1, comprises a carbazole ring system which is attached to a phenylsulfonyl group, a nitrophenyl, a methoxy and a bromomethyl group. The carbazole ring system is essentially planar with maximum deviation of -0.126 (3) Å for the carbon atom C10. The oxygen atom O5 significantly deviates from the carbazole ring by 0.1560 (22) Å. The carbazole ring is almost orthagonal to phenyl ring attached to sulfonyl group and nitrophenyl ring with dihedral angles of 85.43 (15)° and 88.62 (12)°, respectively.
As a result of electron-withdrawing character of phenysulfonyl group, the bond lengths N1–C1 = 1.424 (4) Å and N1–C8 = 1.430 (3) Å in the molecule are longer than the mean value of 1.355 (14) Å (Allen, et al. 1987). The atom S1 has a distorted tetrahedral configuration. The widening of angle O3—S1—O4 [120.22 (15)°] and narrowing angle N1—S1—C14 [104.44 (13)°] from the ideal tetrahedral value are attributed to the Thorpe-Ingold effect (Bassindale, et al. 1984).
The sum of the bond angles around N1 [353.6°] indicate the sp2 hybridization. The nitrogen atom N2 is almost in the plane of phenyl ring with the torsional angle of C21–C20–C25–N2 = -179.6 (3)°. The bromine atom forms the torsional angle of C10– C11–C26–Br1 = 88.1 (3)°.
The molecular structure is stabilized by C—H···O hydrogen bonds (Table 1 Fig. 1), which generate two S(6) ring motifs. In the crystal packing, molecules are linked via C23—H23···O1i intermolecular hydrogen bonding, which generate C(6) infinite chains running parallel to the base vector [0 0 1]. The crystal packing is further stabilized by C22—H22···Cg1ii intermolecular interaction, where the Cg1 is the centre of gravity of the benzene ring(C7–C12) (Bernstein, et al. 1995). The packing view of the title compound shown in the Fig-2 and Fig-3. The symmetry codes are: (i) x, -y + 1/2 + 1, +z - 1/2 (ii) x, 3/2 - y, -1/2 + z