organic compounds
{2-[(2-Bromo-5-methoxybenzylidene)amino]-4,5,6,7-tetrahydrobenzo[b]thiophen-3-yl}(phenyl)methanone
aDepartment of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore 570 006, India, bDepartment of Chemistry, Keene State College, 229 Main Street, Keene, NH 03435-2001, USA, and cMaterials Science Center, University of Mysore, Vijyana Bhavan Building, Manasagangothri, Mysore 570 006, India
*Correspondence e-mail: jjasinski@keene.edu
In the title compound, C23H20BrNO2S, disorder was modeled for the outer two C atoms of the cyclohexene ring over two sets of sites with an occupancy ratio of 0.580 (11):0.420 (11). Both rings have a half-chair conformation. The dihedral angles between the mean plane of the thiophene ring and the benzene and phenyl rings are 9.2 (2) and 66.1 (2)°, respectively. The benzene and phenyl rings are inclined to each other by 74.8 (8)°. In the crystal, molecules are linked by pairs of C—H⋯O hydrogen bonds, forming inversion dimers.
CCDC reference: 997010
Related literature
For applications of 2-aminothiophene derivatives, see: Sabnis et al. (1999); Puterová et al. (2010). For the biological and industrial importance of see: Desai et al. (2001); Karia & Parsania (1999); Samadhiya & Halve (2001); Singh & Dash (1988); Aydogan et al. (2001); Taggi et al. (2002). For a related structure, see: Kubicki et al. (2012). For puckering parameters, see: Cremer & Pople (1975). For standard bond lengths, see: Allen et al. (1987).
Experimental
Crystal data
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Data collection: CrysAlis PRO (Agilent, 2012); cell CrysAlis PRO; data reduction: CrysAlis RED (Agilent, 2012); program(s) used to solve structure: SUPERFLIP (Palatinus & Chapuis, 2007); program(s) used to refine structure: SHELXL2012 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009) and Mercury (Macrae et al., 2008); software used to prepare material for publication: OLEX2 (Dolomanov et al., 2009) and PLATON.
Supporting information
CCDC reference: 997010
10.1107/S1600536814008290/su2721sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814008290/su2721Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814008290/su2721Isup3.cml
To a solution of (2-amino-4,5,6,7-tetrahydro-benzo[b]thiophen-3-yl)- phenyl-methanone (200 mg, 0.79 mmol) in 10 ml of methanol an equimolar amount of 2-bromo-5-methoxybenzaldehyde (170 mg, 0.79 mmol) was added with constant stirring. The mixture was then refluxed for 6 hours and a yellow precipitate was obtained. The reaction completion was confirmed by thin layer
The precipitate was filtered and dried at room temperature overnight. Slow evaporation of a solution in CH2Cl2 gave yellow block-like crystals of the title compound.All H atoms were placed in calculated positions and refined as riding atoms: C—H = 0.95 - 0.99Å with Uiso(H) = 1.5Ueq(C-methyl) and = 1.2Ueq(C) for other H atoms. Atoms C5 and C6, of the tetrahydrobenzothiophenyl ring, are disordered over two sites (A and B) and were refined with an occupancy ratio of 0.574 (11):0.426 (11).
Data collection: CrysAlis PRO (Agilent, 2012); cell
CrysAlis PRO (Agilent, 2012); data reduction: CrysAlis RED (Agilent, 2012); program(s) used to solve structure: SUPERFLIP (Palatinus & Chapuis, 2007); program(s) used to refine structure: SHELXL2012 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009) and Mercury (Macrae et al., 2008); software used to prepare material for publication: OLEX2 (Dolomanov et al., 2009) and PLATON (Spek, 2009).C23H20BrNO2S | F(000) = 928 |
Mr = 454.37 | Dx = 1.508 Mg m−3 |
Monoclinic, P21/n | Cu Kα radiation, λ = 1.54184 Å |
a = 8.84813 (17) Å | Cell parameters from 5917 reflections |
b = 12.5563 (2) Å | θ = 4.3–71.4° |
c = 18.4384 (4) Å | µ = 3.92 mm−1 |
β = 102.363 (2)° | T = 173 K |
V = 2001.00 (7) Å3 | Irregular, yellow |
Z = 4 | 0.26 × 0.22 × 0.14 mm |
Agilent Eos Gemini diffractometer | 3440 reflections with I > 2σ(I) |
Radiation source: Enhance (Cu) X-ray Source | Rint = 0.034 |
ω scans | θmax = 71.3°, θmin = 4.3° |
Absorption correction: multi-scan (CrysAlis PRO and CrysAlis RED; Agilent, 2012) | h = −10→10 |
Tmin = 0.725, Tmax = 1.000 | k = −15→13 |
12404 measured reflections | l = −22→22 |
3853 independent reflections |
Refinement on F2 | 0 restraints |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.032 | H-atom parameters constrained |
wR(F2) = 0.087 | w = 1/[σ2(Fo2) + (0.0539P)2 + 0.1502P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max < 0.001 |
3853 reflections | Δρmax = 0.56 e Å−3 |
273 parameters | Δρmin = −0.31 e Å−3 |
C23H20BrNO2S | V = 2001.00 (7) Å3 |
Mr = 454.37 | Z = 4 |
Monoclinic, P21/n | Cu Kα radiation |
a = 8.84813 (17) Å | µ = 3.92 mm−1 |
b = 12.5563 (2) Å | T = 173 K |
c = 18.4384 (4) Å | 0.26 × 0.22 × 0.14 mm |
β = 102.363 (2)° |
Agilent Eos Gemini diffractometer | 3853 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO and CrysAlis RED; Agilent, 2012) | 3440 reflections with I > 2σ(I) |
Tmin = 0.725, Tmax = 1.000 | Rint = 0.034 |
12404 measured reflections |
R[F2 > 2σ(F2)] = 0.032 | 0 restraints |
wR(F2) = 0.087 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.56 e Å−3 |
3853 reflections | Δρmin = −0.31 e Å−3 |
273 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
Br1 | 0.09686 (3) | 0.02458 (2) | 0.60828 (2) | 0.03755 (10) | |
S1 | 0.37522 (6) | −0.13254 (4) | 0.41239 (3) | 0.02972 (12) | |
O1 | 0.3841 (2) | 0.10568 (12) | 0.20797 (8) | 0.0407 (4) | |
O2 | 0.17717 (19) | 0.45920 (12) | 0.48309 (10) | 0.0405 (4) | |
N1 | 0.31360 (18) | 0.08489 (13) | 0.41394 (9) | 0.0273 (3) | |
C1 | 0.4306 (2) | 0.10714 (15) | 0.27533 (11) | 0.0277 (4) | |
C2 | 0.4297 (2) | 0.00672 (15) | 0.31824 (11) | 0.0252 (4) | |
C3 | 0.4776 (2) | −0.09409 (15) | 0.29439 (10) | 0.0260 (4) | |
C4 | 0.5456 (2) | −0.11311 (16) | 0.22707 (12) | 0.0326 (4) | |
H4AA | 0.4632 | −0.1074 | 0.1815 | 0.039* | 0.580 (11) |
H4AB | 0.6246 | −0.0581 | 0.2247 | 0.039* | 0.580 (11) |
H4BC | 0.6560 | −0.0922 | 0.2382 | 0.039* | 0.420 (11) |
H4BD | 0.4906 | −0.0689 | 0.1852 | 0.039* | 0.420 (11) |
C5A | 0.6185 (8) | −0.2219 (3) | 0.2307 (3) | 0.0388 (14) | 0.580 (11) |
H5AA | 0.7174 | −0.2213 | 0.2680 | 0.047* | 0.580 (11) |
H5AB | 0.6418 | −0.2394 | 0.1819 | 0.047* | 0.580 (11) |
C6A | 0.5129 (10) | −0.3069 (3) | 0.2513 (3) | 0.0427 (14) | 0.580 (11) |
H6AA | 0.5568 | −0.3783 | 0.2462 | 0.051* | 0.580 (11) |
H6AB | 0.4100 | −0.3028 | 0.2173 | 0.051* | 0.580 (11) |
C5B | 0.5303 (11) | −0.2343 (5) | 0.2047 (4) | 0.0386 (18) | 0.420 (11) |
H5BA | 0.4198 | −0.2524 | 0.1865 | 0.046* | 0.420 (11) |
H5BB | 0.5848 | −0.2476 | 0.1639 | 0.046* | 0.420 (11) |
C6B | 0.5977 (12) | −0.3033 (5) | 0.2695 (4) | 0.0411 (17) | 0.420 (11) |
H6BA | 0.7060 | −0.2820 | 0.2904 | 0.049* | 0.420 (11) |
H6BB | 0.5974 | −0.3786 | 0.2536 | 0.049* | 0.420 (11) |
C7 | 0.4959 (3) | −0.29043 (15) | 0.33123 (12) | 0.0353 (4) | |
H7AA | 0.4128 | −0.3367 | 0.3419 | 0.042* | 0.580 (11) |
H7AB | 0.5938 | −0.3089 | 0.3662 | 0.042* | 0.580 (11) |
H7BC | 0.3994 | −0.3322 | 0.3165 | 0.042* | 0.420 (11) |
H7BD | 0.5543 | −0.3186 | 0.3793 | 0.042* | 0.420 (11) |
C8 | 0.4568 (2) | −0.17526 (15) | 0.34010 (11) | 0.0269 (4) | |
C9 | 0.3723 (2) | −0.00049 (15) | 0.38167 (11) | 0.0255 (4) | |
C10 | 0.4899 (2) | 0.20856 (15) | 0.31299 (10) | 0.0267 (4) | |
C11 | 0.5983 (2) | 0.20984 (17) | 0.38015 (12) | 0.0346 (4) | |
H11 | 0.6293 | 0.1451 | 0.4057 | 0.041* | |
C12 | 0.6606 (3) | 0.3059 (2) | 0.40951 (14) | 0.0441 (5) | |
H12 | 0.7362 | 0.3069 | 0.4547 | 0.053* | |
C13 | 0.6125 (3) | 0.40071 (19) | 0.37281 (15) | 0.0483 (6) | |
H13 | 0.6558 | 0.4664 | 0.3928 | 0.058* | |
C14 | 0.5021 (3) | 0.39969 (18) | 0.30749 (14) | 0.0444 (5) | |
H14 | 0.4674 | 0.4647 | 0.2832 | 0.053* | |
C15 | 0.4416 (3) | 0.30354 (16) | 0.27719 (12) | 0.0345 (4) | |
H15 | 0.3668 | 0.3029 | 0.2318 | 0.041* | |
C16 | 0.2623 (2) | 0.07449 (15) | 0.47319 (11) | 0.0277 (4) | |
H16 | 0.2647 | 0.0067 | 0.4964 | 0.033* | |
C17 | 0.1995 (2) | 0.16678 (16) | 0.50565 (11) | 0.0281 (4) | |
C18 | 0.1202 (2) | 0.15806 (16) | 0.56306 (11) | 0.0299 (4) | |
C19 | 0.0562 (2) | 0.24697 (18) | 0.58977 (12) | 0.0348 (4) | |
H19 | −0.0009 | 0.2392 | 0.6276 | 0.042* | |
C20 | 0.0754 (2) | 0.34625 (17) | 0.56152 (12) | 0.0358 (5) | |
H20 | 0.0319 | 0.4071 | 0.5799 | 0.043* | |
C21 | 0.1592 (2) | 0.35725 (16) | 0.50552 (12) | 0.0319 (4) | |
C22 | 0.2189 (2) | 0.26847 (16) | 0.47765 (11) | 0.0299 (4) | |
H22 | 0.2739 | 0.2763 | 0.4390 | 0.036* | |
C23 | 0.2887 (3) | 0.47572 (17) | 0.43904 (14) | 0.0413 (5) | |
H23A | 0.2536 | 0.4414 | 0.3906 | 0.062* | |
H23B | 0.3879 | 0.4449 | 0.4642 | 0.062* | |
H23C | 0.3015 | 0.5523 | 0.4320 | 0.062* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.04351 (15) | 0.03807 (15) | 0.03571 (15) | −0.00469 (8) | 0.01879 (10) | 0.00195 (8) |
S1 | 0.0388 (3) | 0.0250 (2) | 0.0288 (2) | −0.00344 (17) | 0.0148 (2) | 0.00060 (17) |
O1 | 0.0647 (10) | 0.0314 (7) | 0.0247 (7) | 0.0017 (7) | 0.0063 (7) | −0.0007 (6) |
O2 | 0.0448 (9) | 0.0312 (7) | 0.0485 (9) | 0.0077 (6) | 0.0168 (7) | 0.0049 (7) |
N1 | 0.0286 (8) | 0.0273 (8) | 0.0282 (8) | −0.0024 (6) | 0.0107 (6) | −0.0035 (6) |
C1 | 0.0306 (9) | 0.0271 (9) | 0.0278 (10) | 0.0021 (7) | 0.0116 (7) | 0.0006 (7) |
C2 | 0.0252 (9) | 0.0253 (9) | 0.0259 (9) | −0.0015 (7) | 0.0075 (7) | −0.0021 (7) |
C3 | 0.0256 (8) | 0.0259 (9) | 0.0270 (9) | −0.0015 (7) | 0.0070 (7) | −0.0027 (7) |
C4 | 0.0370 (10) | 0.0313 (10) | 0.0336 (11) | 0.0019 (8) | 0.0167 (8) | −0.0013 (8) |
C5A | 0.046 (3) | 0.031 (2) | 0.046 (3) | 0.0047 (19) | 0.027 (3) | −0.0045 (17) |
C6A | 0.058 (4) | 0.028 (2) | 0.051 (3) | −0.003 (2) | 0.030 (3) | −0.0095 (18) |
C5B | 0.044 (4) | 0.038 (3) | 0.037 (3) | −0.001 (3) | 0.016 (3) | −0.010 (2) |
C6B | 0.047 (4) | 0.033 (3) | 0.047 (4) | 0.005 (3) | 0.017 (3) | −0.011 (2) |
C7 | 0.0453 (11) | 0.0235 (10) | 0.0386 (11) | −0.0014 (8) | 0.0125 (9) | −0.0031 (8) |
C8 | 0.0262 (9) | 0.0260 (9) | 0.0291 (10) | −0.0018 (7) | 0.0073 (7) | −0.0033 (7) |
C9 | 0.0272 (9) | 0.0231 (8) | 0.0278 (9) | −0.0023 (7) | 0.0092 (7) | 0.0002 (7) |
C10 | 0.0308 (9) | 0.0267 (9) | 0.0267 (9) | −0.0021 (7) | 0.0154 (7) | −0.0011 (7) |
C11 | 0.0352 (10) | 0.0351 (11) | 0.0354 (11) | −0.0033 (8) | 0.0119 (8) | −0.0009 (8) |
C12 | 0.0424 (12) | 0.0498 (14) | 0.0425 (13) | −0.0135 (10) | 0.0144 (10) | −0.0113 (10) |
C13 | 0.0623 (15) | 0.0338 (12) | 0.0562 (15) | −0.0214 (11) | 0.0295 (12) | −0.0137 (11) |
C14 | 0.0671 (15) | 0.0253 (10) | 0.0479 (13) | −0.0045 (10) | 0.0279 (12) | 0.0012 (9) |
C15 | 0.0463 (12) | 0.0289 (10) | 0.0323 (11) | −0.0002 (8) | 0.0169 (9) | 0.0023 (8) |
C16 | 0.0282 (9) | 0.0281 (9) | 0.0279 (9) | −0.0009 (7) | 0.0086 (7) | −0.0006 (7) |
C17 | 0.0256 (9) | 0.0311 (10) | 0.0288 (10) | 0.0003 (7) | 0.0085 (7) | −0.0031 (8) |
C18 | 0.0289 (9) | 0.0342 (10) | 0.0286 (10) | −0.0008 (7) | 0.0107 (8) | 0.0012 (8) |
C19 | 0.0290 (9) | 0.0471 (12) | 0.0318 (10) | 0.0034 (8) | 0.0140 (8) | −0.0043 (9) |
C20 | 0.0329 (10) | 0.0377 (11) | 0.0387 (11) | 0.0095 (8) | 0.0123 (9) | −0.0047 (9) |
C21 | 0.0297 (9) | 0.0304 (10) | 0.0352 (11) | 0.0042 (7) | 0.0061 (8) | 0.0004 (8) |
C22 | 0.0291 (9) | 0.0356 (10) | 0.0270 (9) | 0.0015 (7) | 0.0105 (8) | −0.0007 (8) |
C23 | 0.0443 (12) | 0.0361 (12) | 0.0447 (13) | −0.0001 (9) | 0.0121 (10) | 0.0061 (9) |
Br1—C18 | 1.903 (2) | C6B—C7 | 1.603 (7) |
S1—C8 | 1.7314 (19) | C7—H7AA | 0.9900 |
S1—C9 | 1.7506 (19) | C7—H7AB | 0.9900 |
O1—C1 | 1.222 (2) | C7—H7BC | 0.9900 |
O2—C21 | 1.365 (3) | C7—H7BD | 0.9900 |
O2—C23 | 1.421 (3) | C7—C8 | 1.504 (3) |
N1—C9 | 1.380 (3) | C10—C11 | 1.395 (3) |
N1—C16 | 1.277 (2) | C10—C15 | 1.386 (3) |
C1—C2 | 1.489 (3) | C11—H11 | 0.9500 |
C1—C10 | 1.491 (3) | C11—C12 | 1.387 (3) |
C2—C3 | 1.433 (3) | C12—H12 | 0.9500 |
C2—C9 | 1.374 (3) | C12—C13 | 1.391 (4) |
C3—C4 | 1.510 (3) | C13—H13 | 0.9500 |
C3—C8 | 1.360 (3) | C13—C14 | 1.379 (4) |
C4—H4AA | 0.9900 | C14—H14 | 0.9500 |
C4—H4AB | 0.9900 | C14—C15 | 1.389 (3) |
C4—H4BC | 0.9900 | C15—H15 | 0.9500 |
C4—H4BD | 0.9900 | C16—H16 | 0.9500 |
C4—C5A | 1.506 (4) | C16—C17 | 1.467 (3) |
C4—C5B | 1.575 (6) | C17—C18 | 1.394 (3) |
C5A—H5AA | 0.9900 | C17—C22 | 1.402 (3) |
C5A—H5AB | 0.9900 | C18—C19 | 1.389 (3) |
C5A—C6A | 1.519 (8) | C19—H19 | 0.9500 |
C6A—H6AA | 0.9900 | C19—C20 | 1.375 (3) |
C6A—H6AB | 0.9900 | C20—H20 | 0.9500 |
C6A—C7 | 1.526 (5) | C20—C21 | 1.401 (3) |
C5B—H5BA | 0.9900 | C21—C22 | 1.379 (3) |
C5B—H5BB | 0.9900 | C22—H22 | 0.9500 |
C5B—C6B | 1.494 (12) | C23—H23A | 0.9800 |
C6B—H6BA | 0.9900 | C23—H23B | 0.9800 |
C6B—H6BB | 0.9900 | C23—H23C | 0.9800 |
C8—S1—C9 | 91.38 (9) | C8—C7—H7AA | 110.1 |
C21—O2—C23 | 116.75 (16) | C8—C7—H7AB | 110.1 |
C16—N1—C9 | 121.68 (17) | C8—C7—H7BC | 109.5 |
O1—C1—C2 | 119.22 (18) | C8—C7—H7BD | 109.5 |
O1—C1—C10 | 119.64 (18) | C3—C8—S1 | 112.26 (14) |
C2—C1—C10 | 121.13 (17) | C3—C8—C7 | 126.05 (18) |
C3—C2—C1 | 123.31 (17) | C7—C8—S1 | 121.68 (15) |
C9—C2—C1 | 123.55 (17) | N1—C9—S1 | 125.24 (14) |
C9—C2—C3 | 112.97 (17) | C2—C9—S1 | 110.80 (15) |
C2—C3—C4 | 126.00 (17) | C2—C9—N1 | 123.88 (18) |
C8—C3—C2 | 112.57 (17) | C11—C10—C1 | 122.00 (18) |
C8—C3—C4 | 121.43 (17) | C15—C10—C1 | 118.12 (18) |
C3—C4—H4AA | 109.6 | C15—C10—C11 | 119.77 (19) |
C3—C4—H4AB | 109.6 | C10—C11—H11 | 120.1 |
C3—C4—H4BC | 109.7 | C12—C11—C10 | 119.8 (2) |
C3—C4—H4BD | 109.7 | C12—C11—H11 | 120.1 |
C3—C4—C5B | 110.0 (3) | C11—C12—H12 | 120.0 |
H4AA—C4—H4AB | 108.1 | C11—C12—C13 | 120.0 (2) |
H4BC—C4—H4BD | 108.2 | C13—C12—H12 | 120.0 |
C5A—C4—C3 | 110.4 (2) | C12—C13—H13 | 119.9 |
C5A—C4—H4AA | 109.6 | C14—C13—C12 | 120.2 (2) |
C5A—C4—H4AB | 109.6 | C14—C13—H13 | 119.9 |
C5B—C4—H4BC | 109.7 | C13—C14—H14 | 120.0 |
C5B—C4—H4BD | 109.7 | C13—C14—C15 | 120.0 (2) |
C4—C5A—H5AA | 109.3 | C15—C14—H14 | 120.0 |
C4—C5A—H5AB | 109.3 | C10—C15—C14 | 120.2 (2) |
C4—C5A—C6A | 111.6 (5) | C10—C15—H15 | 119.9 |
H5AA—C5A—H5AB | 108.0 | C14—C15—H15 | 119.9 |
C6A—C5A—H5AA | 109.3 | N1—C16—H16 | 119.9 |
C6A—C5A—H5AB | 109.3 | N1—C16—C17 | 120.24 (18) |
C5A—C6A—H6AA | 109.7 | C17—C16—H16 | 119.9 |
C5A—C6A—H6AB | 109.7 | C18—C17—C16 | 122.95 (18) |
C5A—C6A—C7 | 109.8 (5) | C18—C17—C22 | 118.20 (18) |
H6AA—C6A—H6AB | 108.2 | C22—C17—C16 | 118.85 (17) |
C7—C6A—H6AA | 109.7 | C17—C18—Br1 | 121.43 (15) |
C7—C6A—H6AB | 109.7 | C19—C18—Br1 | 117.50 (15) |
C4—C5B—H5BA | 109.5 | C19—C18—C17 | 121.06 (19) |
C4—C5B—H5BB | 109.5 | C18—C19—H19 | 120.0 |
H5BA—C5B—H5BB | 108.1 | C20—C19—C18 | 120.08 (19) |
C6B—C5B—C4 | 110.7 (6) | C20—C19—H19 | 120.0 |
C6B—C5B—H5BA | 109.5 | C19—C20—H20 | 120.1 |
C6B—C5B—H5BB | 109.5 | C19—C20—C21 | 119.75 (19) |
C5B—C6B—H6BA | 109.9 | C21—C20—H20 | 120.1 |
C5B—C6B—H6BB | 109.9 | O2—C21—C20 | 115.47 (18) |
C5B—C6B—C7 | 108.8 (6) | O2—C21—C22 | 124.50 (19) |
H6BA—C6B—H6BB | 108.3 | C22—C21—C20 | 120.02 (19) |
C7—C6B—H6BA | 109.9 | C17—C22—H22 | 119.6 |
C7—C6B—H6BB | 109.9 | C21—C22—C17 | 120.81 (18) |
C6A—C7—H7AA | 110.1 | C21—C22—H22 | 119.6 |
C6A—C7—H7AB | 110.1 | O2—C23—H23A | 109.5 |
C6B—C7—H7BC | 109.5 | O2—C23—H23B | 109.5 |
C6B—C7—H7BD | 109.5 | O2—C23—H23C | 109.5 |
H7AA—C7—H7AB | 108.4 | H23A—C23—H23B | 109.5 |
H7BC—C7—H7BD | 108.1 | H23A—C23—H23C | 109.5 |
C8—C7—C6A | 107.9 (2) | H23B—C23—H23C | 109.5 |
C8—C7—C6B | 110.6 (3) | ||
Br1—C18—C19—C20 | 177.08 (17) | C5B—C6B—C7—C8 | −43.3 (8) |
O1—C1—C2—C3 | 42.7 (3) | C6B—C7—C8—S1 | −169.4 (4) |
O1—C1—C2—C9 | −132.2 (2) | C6B—C7—C8—C3 | 11.4 (5) |
O1—C1—C10—C11 | −153.30 (19) | C8—S1—C9—N1 | 177.94 (17) |
O1—C1—C10—C15 | 22.8 (3) | C8—S1—C9—C2 | 0.96 (15) |
O2—C21—C22—C17 | 177.79 (19) | C8—C3—C4—C5A | −13.9 (4) |
N1—C16—C17—C18 | 169.70 (19) | C8—C3—C4—C5B | 19.7 (5) |
N1—C16—C17—C22 | −9.9 (3) | C9—S1—C8—C3 | −1.23 (15) |
C1—C2—C3—C4 | 4.7 (3) | C9—S1—C8—C7 | 179.49 (17) |
C1—C2—C3—C8 | −175.86 (17) | C9—N1—C16—C17 | −179.50 (17) |
C1—C2—C9—S1 | 174.92 (15) | C9—C2—C3—C4 | −179.91 (18) |
C1—C2—C9—N1 | −2.1 (3) | C9—C2—C3—C8 | −0.4 (2) |
C1—C10—C11—C12 | 174.01 (19) | C10—C1—C2—C3 | −136.11 (19) |
C1—C10—C15—C14 | −175.38 (19) | C10—C1—C2—C9 | 48.9 (3) |
C2—C1—C10—C11 | 25.5 (3) | C10—C11—C12—C13 | 1.4 (3) |
C2—C1—C10—C15 | −158.38 (18) | C11—C10—C15—C14 | 0.8 (3) |
C2—C3—C4—C5A | 165.5 (3) | C11—C12—C13—C14 | 0.5 (4) |
C2—C3—C4—C5B | −160.9 (4) | C12—C13—C14—C15 | −1.7 (4) |
C2—C3—C8—S1 | 1.2 (2) | C13—C14—C15—C10 | 1.1 (3) |
C2—C3—C8—C7 | −179.59 (18) | C15—C10—C11—C12 | −2.0 (3) |
C3—C2—C9—S1 | −0.5 (2) | C16—N1—C9—S1 | 3.8 (3) |
C3—C2—C9—N1 | −177.51 (17) | C16—N1—C9—C2 | −179.59 (19) |
C3—C4—C5A—C6A | 46.7 (7) | C16—C17—C18—Br1 | 3.6 (3) |
C3—C4—C5B—C6B | −53.2 (8) | C16—C17—C18—C19 | −176.87 (19) |
C4—C3—C8—S1 | −179.33 (15) | C16—C17—C22—C21 | 178.74 (18) |
C4—C3—C8—C7 | −0.1 (3) | C17—C18—C19—C20 | −2.4 (3) |
C4—C5A—C6A—C7 | −67.6 (8) | C18—C17—C22—C21 | −0.9 (3) |
C4—C5B—C6B—C7 | 65.5 (9) | C18—C19—C20—C21 | 0.2 (3) |
C5A—C4—C5B—C6B | 43.5 (7) | C19—C20—C21—O2 | −177.5 (2) |
C5A—C6A—C7—C6B | −51.1 (7) | C19—C20—C21—C22 | 1.6 (3) |
C5A—C6A—C7—C8 | 49.3 (7) | C20—C21—C22—C17 | −1.3 (3) |
C6A—C7—C8—S1 | 161.2 (4) | C22—C17—C18—Br1 | −176.77 (14) |
C6A—C7—C8—C3 | −17.9 (4) | C22—C17—C18—C19 | 2.7 (3) |
C5B—C4—C5A—C6A | −48.4 (6) | C23—O2—C21—C20 | 166.49 (19) |
C5B—C6B—C7—C6A | 46.2 (7) | C23—O2—C21—C22 | −12.6 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C20—H20···O2i | 0.95 | 2.58 | 3.294 (3) | 132 |
Symmetry code: (i) −x, −y+1, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C20—H20···O2i | 0.95 | 2.58 | 3.294 (3) | 132 |
Symmetry code: (i) −x, −y+1, −z+1. |
Acknowledgements
MK is grateful to the CPEPA–UGC for the award of a Junior Research Fellowship and thanks the University of Mysore for research facilities. JPJ acknowledges the NSF–MRI program (grant No. CHE-1039027) for funds to purchase the X-ray diffractometer.
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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.
2-Aminothiophene derivatives have been used in a number of applications in pesticides, dyes and pharmaceuticals (Sabnis et al. 1999; Puterová et al. 2010). Schiff base compounds show biological activities including antibacterial, antifungal, anticancer and herbicidal activities (Desai et al., 2001; Karia & Parsania, 1999; Samadhiya & Halve, 2001; Singh & Dash, 1988) and have been used as starting materials in the synthesis of compounds of industrial (Aydogan et al., 2001) and biological interest such as β-lactams (Taggi et al., 2002). In continuation of our work on the Schiff base derivatives of 2-aminothiophenes (Kubicki et al., 2012), we report herein on the crystal structure of the title compound.
In the title compound, Fig. 1, disorder was modeled for atoms C5 and C6 of the cyclohexene ring over two sites (A and B) with an occupancy ratio of 0.580 (11):0.420 (11). Both rings have half-chair conformations with puckering parameters (Cremer & Pople, 1975) Q,θ, and ϕ being = 0.520 (6) Å, 49.9 (4) ° and 154.8 (6) °, respectively, for ring A and being = 0.527 (8) Å, 130.1 (5) ° and 322.0 (7) °, respectively, for ring B. The dihedral angles between the mean plane of the thiophene ring and the benzene and phenyl rings are 9.2 (2) ° and 66.1 (2) °, respectively. The benzene and phenyl rings are twisted with respect to each other by 74.8 (8)°. Bond lengths are in normal ranges (Allen et al., 1987).
In the crystal, molecules are linked by pairs of C-H···O hydrogen bonds forming inversion dimers (Table 1 and Fig. 2).