organic compounds
(5Z)-5-(2-Methylbenzylidene)-3-phenyl-2-thioxo-1,3-thiazolidin-4-one
aDepartment of Chemistry, Government College University, Lahore, Pakistan, and bDepartment of Physics, University of Sargodha, Sargodha, Pakistan
*Correspondence e-mail: dmntahir_uos@yahoo.com
In the title compound, C17H13NOS2, the heterocyclic ring is oriented at a dihedral angle of 74.43 (5)° with respect to the anilinic benzene ring and at a dihedral angle of 17.31 (9)° with respect to phenyl ring. An intramolecular C—H⋯S interaction occurs, resulting in an S(6) ring. In the crystal, the packing is consolidated by C—H⋯π interactions and possible very weak aromatic π–π stacking [centroid–centroid separation = 4.025 (1) Å].
Related literature
For related structures, see: Linden et al. (1999); Shahwar et al. (2009a,b,c). For graph-set theory, see: Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); 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 (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON.
Supporting information
https://doi.org/10.1107/S1600536809044304/hb5181sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809044304/hb5181Isup2.hkl
3-Phenyl-2-thioxo-1,3-thiazolidin-4-one (0.419 g, 0.2 mol), 2-Methylbenzaldehyde (0.240 g, 0.2 mol) and K2CO3 (0.553 g, 0.4 mol) were dissolved in 10 ml distilled water at room temperature. The stirring was continued for 24 h and reaction was monitored by TLC. The precipitates were formed during neutalization of the reaction mixture with 5% HCl. The precipitates were filtered off and washed with
of NaCl. The crude material obtained was recrystalized in ethyl acetate to affoard yellow prisms of (I).The H-atoms were positioned geometrically (C–H = 0.93–0.96 Å) and refined as riding with Uiso(H) = xUeq(C), where x = 1.5 for methyl and 1.2 for other H atoms.
The title compound (I, Fig. 1), has been prepared and being reported in continuation of synthesizing various derivatives of rhodanine. In this context we have reported the
of (II) (5Z)-5-(2-Hydroxybenzylidene)-3-phenyl-2-thioxo-1,3-thiazolidin-4-one (Shahwar et al., 2009a), (III) (5Z)-5-(2-Hydroxybenzylidene)-2-thioxo-1,3-thiazolidin-4-one methanol hemisolvate (Shahwar et al., 2009b) and (IV) (5E)-5-(4-Hydroxy-3-methoxybenzylidene)-2-thioxo-1,3-thiazolidin- 4-one methanol monosolvate (Shahwar et al., 2009c).The
of (I) differs from (V) 3-Phenyl-5-(phenylmethylidene)-2-thioxo-1,3-thiazolidin-4-one (Linden et al., 1999) due to attachement of methyl group.In (I) the heterocyclic ring A (N1/C7/S1/C8/C9), two benzene rings B (C1—C6) and C (C11–C16) are planar with maximum r. m. s. deviations of 0.0047, 0.0074 and 0.0046 Å respectively, from the respective mean square planes. The dihedral angles between A/B, A/C and B/C are 74.43 (5), 17.31 (9) and 59.19 (6)°, respectively. The intramolecular H-bondings of C—H···S (Table 1, Fig. 1) form S(6) ring motif (Bernstein et al., 1995). There exist π···π-interactions between adjacent molecules. The CgA···CgCi and CgC···CgAi [symmetry code: i = 2 - x, 1 - y, 1 - z] have centroid to centroid distance of 4.025 (1) Å, where CgA and CgC are the centroids of rings A and C, respectively. The C–H···π interactions (Table 1) also play role in stabilizing the molecules.
For related structures, see: Linden et al. (1999); Shahwar et al. (2009a,b,c). For graph-set theory, see: Bernstein et al. (1995). CgC is the centroid of C11–C16 benzene ring.
Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).Fig. 1. View of (I) with displacement ellipsoids drawn at the 50% probability level. The dotted line represents the intramolecular H-bond. |
C17H13NOS2 | F(000) = 648 |
Mr = 311.40 | Dx = 1.350 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 3807 reflections |
a = 9.8317 (4) Å | θ = 2.1–28.3° |
b = 16.6317 (6) Å | µ = 0.35 mm−1 |
c = 9.3865 (4) Å | T = 296 K |
β = 93.541 (2)° | Prisms, yellow |
V = 1531.93 (11) Å3 | 0.40 × 0.30 × 0.18 mm |
Z = 4 |
Bruker Kappa APEXII CCD diffractometer | 3807 independent reflections |
Radiation source: fine-focus sealed tube | 2879 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.028 |
Detector resolution: 7.40 pixels mm-1 | θmax = 28.3°, θmin = 2.1° |
ω scans | h = −13→12 |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | k = −13→22 |
Tmin = 0.879, Tmax = 0.941 | l = −12→9 |
17261 measured reflections |
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)] = 0.036 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.104 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.0498P)2 + 0.3691P] where P = (Fo2 + 2Fc2)/3 |
3807 reflections | (Δ/σ)max < 0.001 |
191 parameters | Δρmax = 0.24 e Å−3 |
0 restraints | Δρmin = −0.20 e Å−3 |
C17H13NOS2 | V = 1531.93 (11) Å3 |
Mr = 311.40 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 9.8317 (4) Å | µ = 0.35 mm−1 |
b = 16.6317 (6) Å | T = 296 K |
c = 9.3865 (4) Å | 0.40 × 0.30 × 0.18 mm |
β = 93.541 (2)° |
Bruker Kappa APEXII CCD diffractometer | 3807 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 2879 reflections with I > 2σ(I) |
Tmin = 0.879, Tmax = 0.941 | Rint = 0.028 |
17261 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | 0 restraints |
wR(F2) = 0.104 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.24 e Å−3 |
3807 reflections | Δρmin = −0.20 e Å−3 |
191 parameters |
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles |
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 | ||
S1 | 0.95527 (4) | 0.36087 (3) | 0.48338 (4) | 0.0408 (1) | |
S2 | 0.81145 (5) | 0.25140 (3) | 0.66855 (5) | 0.0544 (2) | |
O1 | 0.62790 (12) | 0.44603 (8) | 0.30111 (16) | 0.0590 (5) | |
N1 | 0.69362 (13) | 0.35311 (8) | 0.47353 (15) | 0.0379 (4) | |
C1 | 0.55749 (16) | 0.32728 (10) | 0.49995 (18) | 0.0409 (5) | |
C2 | 0.47556 (18) | 0.37600 (11) | 0.5756 (2) | 0.0508 (6) | |
C3 | 0.3467 (2) | 0.34908 (14) | 0.6034 (3) | 0.0648 (8) | |
C4 | 0.3022 (2) | 0.27496 (15) | 0.5571 (3) | 0.0686 (8) | |
C5 | 0.3841 (2) | 0.22789 (15) | 0.4798 (3) | 0.0774 (9) | |
C6 | 0.5136 (2) | 0.25369 (12) | 0.4493 (3) | 0.0644 (8) | |
C7 | 0.71757 (16) | 0.41175 (9) | 0.37026 (18) | 0.0400 (5) | |
C8 | 0.86629 (15) | 0.42329 (9) | 0.36025 (17) | 0.0358 (5) | |
C9 | 0.80674 (16) | 0.32015 (9) | 0.54449 (17) | 0.0374 (5) | |
C10 | 0.91369 (16) | 0.47413 (9) | 0.26411 (18) | 0.0390 (5) | |
C11 | 1.05266 (15) | 0.49045 (10) | 0.22684 (17) | 0.0383 (5) | |
C12 | 1.07841 (16) | 0.55752 (10) | 0.14107 (17) | 0.0393 (5) | |
C13 | 1.20990 (18) | 0.56853 (12) | 0.0986 (2) | 0.0522 (6) | |
C14 | 1.31437 (18) | 0.51669 (14) | 0.1394 (2) | 0.0591 (7) | |
C15 | 1.29056 (18) | 0.45192 (13) | 0.2249 (2) | 0.0580 (7) | |
C16 | 1.16070 (17) | 0.43879 (12) | 0.2676 (2) | 0.0509 (6) | |
C17 | 0.96876 (19) | 0.61723 (10) | 0.0967 (2) | 0.0500 (6) | |
H2 | 0.50600 | 0.42618 | 0.60750 | 0.0609* | |
H3 | 0.28976 | 0.38161 | 0.65410 | 0.0777* | |
H4 | 0.21635 | 0.25676 | 0.57835 | 0.0823* | |
H5 | 0.35298 | 0.17800 | 0.44709 | 0.0929* | |
H6 | 0.56916 | 0.22185 | 0.39589 | 0.0773* | |
H10 | 0.84702 | 0.50379 | 0.21293 | 0.0468* | |
H13 | 1.22796 | 0.61221 | 0.04085 | 0.0626* | |
H14 | 1.40133 | 0.52561 | 0.10891 | 0.0709* | |
H15 | 1.36121 | 0.41725 | 0.25365 | 0.0695* | |
H16 | 1.14447 | 0.39461 | 0.32487 | 0.0611* | |
H17A | 1.00596 | 0.65805 | 0.03813 | 0.0751* | |
H17B | 0.93458 | 0.64157 | 0.18005 | 0.0751* | |
H17C | 0.89582 | 0.59014 | 0.04357 | 0.0751* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0330 (2) | 0.0478 (2) | 0.0411 (2) | 0.0007 (2) | −0.0014 (2) | 0.0040 (2) |
S2 | 0.0639 (3) | 0.0516 (3) | 0.0477 (3) | −0.0025 (2) | 0.0028 (2) | 0.0119 (2) |
O1 | 0.0342 (6) | 0.0622 (8) | 0.0804 (10) | 0.0084 (6) | 0.0030 (6) | 0.0248 (7) |
N1 | 0.0321 (7) | 0.0371 (7) | 0.0450 (8) | −0.0012 (5) | 0.0062 (5) | 0.0000 (6) |
C1 | 0.0342 (8) | 0.0439 (9) | 0.0451 (9) | −0.0024 (7) | 0.0059 (7) | 0.0020 (7) |
C2 | 0.0418 (9) | 0.0535 (10) | 0.0578 (11) | 0.0034 (8) | 0.0089 (8) | −0.0037 (9) |
C3 | 0.0432 (11) | 0.0808 (15) | 0.0722 (14) | 0.0103 (10) | 0.0183 (10) | 0.0057 (12) |
C4 | 0.0382 (10) | 0.0817 (15) | 0.0866 (16) | −0.0095 (10) | 0.0095 (10) | 0.0170 (13) |
C5 | 0.0572 (13) | 0.0668 (14) | 0.109 (2) | −0.0241 (11) | 0.0110 (13) | −0.0107 (14) |
C6 | 0.0501 (11) | 0.0584 (12) | 0.0864 (16) | −0.0107 (9) | 0.0177 (11) | −0.0182 (11) |
C7 | 0.0341 (8) | 0.0369 (8) | 0.0495 (9) | 0.0031 (6) | 0.0066 (7) | 0.0013 (7) |
C8 | 0.0321 (8) | 0.0346 (8) | 0.0408 (8) | 0.0034 (6) | 0.0023 (6) | −0.0016 (6) |
C9 | 0.0396 (8) | 0.0364 (8) | 0.0363 (8) | −0.0013 (6) | 0.0035 (6) | −0.0048 (6) |
C10 | 0.0330 (8) | 0.0390 (8) | 0.0451 (9) | 0.0053 (6) | 0.0026 (7) | 0.0011 (7) |
C11 | 0.0330 (8) | 0.0445 (8) | 0.0374 (8) | 0.0006 (7) | 0.0025 (6) | −0.0017 (7) |
C12 | 0.0378 (8) | 0.0421 (8) | 0.0379 (9) | −0.0053 (7) | 0.0022 (7) | −0.0042 (7) |
C13 | 0.0482 (10) | 0.0555 (11) | 0.0535 (11) | −0.0121 (8) | 0.0076 (8) | 0.0006 (9) |
C14 | 0.0343 (9) | 0.0815 (14) | 0.0623 (12) | −0.0096 (9) | 0.0106 (8) | −0.0051 (11) |
C15 | 0.0336 (9) | 0.0813 (14) | 0.0589 (12) | 0.0108 (9) | 0.0014 (8) | 0.0055 (10) |
C16 | 0.0383 (9) | 0.0640 (12) | 0.0508 (10) | 0.0069 (8) | 0.0060 (8) | 0.0122 (9) |
C17 | 0.0530 (10) | 0.0416 (9) | 0.0556 (11) | −0.0013 (8) | 0.0043 (8) | 0.0059 (8) |
S1—C8 | 1.7476 (16) | C12—C13 | 1.388 (2) |
S1—C9 | 1.7389 (16) | C12—C17 | 1.506 (2) |
S2—C9 | 1.6306 (16) | C13—C14 | 1.377 (3) |
O1—C7 | 1.205 (2) | C14—C15 | 1.372 (3) |
N1—C1 | 1.442 (2) | C15—C16 | 1.379 (2) |
N1—C7 | 1.405 (2) | C2—H2 | 0.9300 |
N1—C9 | 1.375 (2) | C3—H3 | 0.9300 |
C1—C2 | 1.371 (2) | C4—H4 | 0.9300 |
C1—C6 | 1.373 (3) | C5—H5 | 0.9300 |
C2—C3 | 1.384 (3) | C6—H6 | 0.9300 |
C3—C4 | 1.370 (3) | C10—H10 | 0.9300 |
C4—C5 | 1.364 (3) | C13—H13 | 0.9300 |
C5—C6 | 1.390 (3) | C14—H14 | 0.9300 |
C7—C8 | 1.483 (2) | C15—H15 | 0.9300 |
C8—C10 | 1.341 (2) | C16—H16 | 0.9300 |
C10—C11 | 1.457 (2) | C17—H17A | 0.9600 |
C11—C12 | 1.408 (2) | C17—H17B | 0.9600 |
C11—C16 | 1.401 (2) | C17—H17C | 0.9600 |
C8—S1—C9 | 93.05 (7) | C13—C14—C15 | 120.20 (17) |
C1—N1—C7 | 121.49 (13) | C14—C15—C16 | 119.26 (18) |
C1—N1—C9 | 121.99 (13) | C11—C16—C15 | 121.57 (18) |
C7—N1—C9 | 116.49 (13) | C1—C2—H2 | 121.00 |
N1—C1—C2 | 119.62 (15) | C3—C2—H2 | 121.00 |
N1—C1—C6 | 118.77 (15) | C2—C3—H3 | 120.00 |
C2—C1—C6 | 121.60 (16) | C4—C3—H3 | 120.00 |
C1—C2—C3 | 118.72 (18) | C3—C4—H4 | 120.00 |
C2—C3—C4 | 120.6 (2) | C5—C4—H4 | 120.00 |
C3—C4—C5 | 119.9 (2) | C4—C5—H5 | 120.00 |
C4—C5—C6 | 120.7 (2) | C6—C5—H5 | 120.00 |
C1—C6—C5 | 118.4 (2) | C1—C6—H6 | 121.00 |
O1—C7—N1 | 123.48 (15) | C5—C6—H6 | 121.00 |
O1—C7—C8 | 126.56 (15) | C8—C10—H10 | 115.00 |
N1—C7—C8 | 109.96 (13) | C11—C10—H10 | 115.00 |
S1—C8—C7 | 109.66 (11) | C12—C13—H13 | 119.00 |
S1—C8—C10 | 129.72 (12) | C14—C13—H13 | 119.00 |
C7—C8—C10 | 120.60 (14) | C13—C14—H14 | 120.00 |
S1—C9—S2 | 121.42 (10) | C15—C14—H14 | 120.00 |
S1—C9—N1 | 110.83 (11) | C14—C15—H15 | 120.00 |
S2—C9—N1 | 127.74 (12) | C16—C15—H15 | 120.00 |
C8—C10—C11 | 130.48 (15) | C11—C16—H16 | 119.00 |
C10—C11—C12 | 119.31 (14) | C15—C16—H16 | 119.00 |
C10—C11—C16 | 121.79 (15) | C12—C17—H17A | 109.00 |
C12—C11—C16 | 118.82 (14) | C12—C17—H17B | 109.00 |
C11—C12—C13 | 118.18 (15) | C12—C17—H17C | 109.00 |
C11—C12—C17 | 122.00 (14) | H17A—C17—H17B | 109.00 |
C13—C12—C17 | 119.81 (15) | H17A—C17—H17C | 109.00 |
C12—C13—C14 | 121.96 (18) | H17B—C17—H17C | 109.00 |
C9—S1—C8—C7 | 0.70 (12) | C3—C4—C5—C6 | 1.1 (4) |
C9—S1—C8—C10 | −177.47 (16) | C4—C5—C6—C1 | 0.6 (4) |
C8—S1—C9—S2 | 179.23 (11) | O1—C7—C8—S1 | 179.38 (15) |
C8—S1—C9—N1 | −0.06 (13) | O1—C7—C8—C10 | −2.3 (3) |
C7—N1—C1—C2 | −75.8 (2) | N1—C7—C8—S1 | −1.15 (16) |
C7—N1—C1—C6 | 104.8 (2) | N1—C7—C8—C10 | 177.21 (14) |
C9—N1—C1—C2 | 106.26 (19) | S1—C8—C10—C11 | 3.5 (3) |
C9—N1—C1—C6 | −73.2 (2) | C7—C8—C10—C11 | −174.47 (16) |
C1—N1—C7—O1 | 2.6 (2) | C8—C10—C11—C12 | −168.06 (17) |
C1—N1—C7—C8 | −176.90 (14) | C8—C10—C11—C16 | 15.4 (3) |
C9—N1—C7—O1 | −179.33 (16) | C10—C11—C12—C13 | −175.47 (16) |
C9—N1—C7—C8 | 1.18 (19) | C10—C11—C12—C17 | 5.4 (2) |
C1—N1—C9—S1 | 177.41 (12) | C16—C11—C12—C13 | 1.1 (2) |
C1—N1—C9—S2 | −1.8 (2) | C16—C11—C12—C17 | −178.04 (16) |
C7—N1—C9—S1 | −0.66 (17) | C10—C11—C16—C15 | 176.08 (17) |
C7—N1—C9—S2 | −179.90 (13) | C12—C11—C16—C15 | −0.5 (3) |
N1—C1—C2—C3 | −178.13 (18) | C11—C12—C13—C14 | −0.8 (3) |
C6—C1—C2—C3 | 1.3 (3) | C17—C12—C13—C14 | 178.36 (17) |
N1—C1—C6—C5 | 177.6 (2) | C12—C13—C14—C15 | −0.2 (3) |
C2—C1—C6—C5 | −1.8 (3) | C13—C14—C15—C16 | 0.9 (3) |
C1—C2—C3—C4 | 0.5 (3) | C14—C15—C16—C11 | −0.6 (3) |
C2—C3—C4—C5 | −1.6 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
C16—H16···S1 | 0.93 | 2.52 | 3.2197 (19) | 133 |
C17—H17C···CgCi | 0.96 | 2.72 | 3.569 (2) | 148 |
Symmetry code: (i) −x+2, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | C17H13NOS2 |
Mr | 311.40 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 296 |
a, b, c (Å) | 9.8317 (4), 16.6317 (6), 9.3865 (4) |
β (°) | 93.541 (2) |
V (Å3) | 1531.93 (11) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.35 |
Crystal size (mm) | 0.40 × 0.30 × 0.18 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.879, 0.941 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 17261, 3807, 2879 |
Rint | 0.028 |
(sin θ/λ)max (Å−1) | 0.667 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.104, 1.01 |
No. of reflections | 3807 |
No. of parameters | 191 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.24, −0.20 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and PLATON (Spek, 2009), WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C16—H16···S1 | 0.93 | 2.52 | 3.2197 (19) | 133 |
C17—H17C···CgCi | 0.96 | 2.72 | 3.569 (2) | 148 |
Symmetry code: (i) −x+2, −y+1, −z. |
Acknowledgements
DS is grateful to Government College University, Lahore, for providing funds under the GCU funded Research Projects Programme.
References
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The title compound (I, Fig. 1), has been prepared and being reported in continuation of synthesizing various derivatives of rhodanine. In this context we have reported the crystal structure of (II) (5Z)-5-(2-Hydroxybenzylidene)-3-phenyl-2-thioxo-1,3-thiazolidin-4-one (Shahwar et al., 2009a), (III) (5Z)-5-(2-Hydroxybenzylidene)-2-thioxo-1,3-thiazolidin-4-one methanol hemisolvate (Shahwar et al., 2009b) and (IV) (5E)-5-(4-Hydroxy-3-methoxybenzylidene)-2-thioxo-1,3-thiazolidin- 4-one methanol monosolvate (Shahwar et al., 2009c).
The crystal structure of (I) differs from (V) 3-Phenyl-5-(phenylmethylidene)-2-thioxo-1,3-thiazolidin-4-one (Linden et al., 1999) due to attachement of methyl group.
In (I) the heterocyclic ring A (N1/C7/S1/C8/C9), two benzene rings B (C1—C6) and C (C11–C16) are planar with maximum r. m. s. deviations of 0.0047, 0.0074 and 0.0046 Å respectively, from the respective mean square planes. The dihedral angles between A/B, A/C and B/C are 74.43 (5), 17.31 (9) and 59.19 (6)°, respectively. The intramolecular H-bondings of C—H···S (Table 1, Fig. 1) form S(6) ring motif (Bernstein et al., 1995). There exist π···π-interactions between adjacent molecules. The CgA···CgCi and CgC···CgAi [symmetry code: i = 2 - x, 1 - y, 1 - z] have centroid to centroid distance of 4.025 (1) Å, where CgA and CgC are the centroids of rings A and C, respectively. The C–H···π interactions (Table 1) also play role in stabilizing the molecules.