organic compounds
1-[2-Oxo-5-(trifluoromethoxy)indolin-3-ylidene]-4-[4-(trifluoromethyl)phenyl]thiosemicarbazide
aDepartment of Chemistry, Bahauddin Zakariya University, Multan 60800, Pakistan, bDepartment of Chemistry, Government College University, Lahore, Pakistan, and cDepartment of Physics, University of Sargodha, Sargodha, Pakistan
*Correspondence e-mail: dmntahir_uos@yahoo.com
In the title compound, C17H10F6N4O2S, an intramolecular N—H⋯N hydrogen bonds forms an S(5) ring whereas N—H⋯O and C—H⋯S interactions complete S(6) ring motifs. The dihedral angle between the fused ring system and the phenyl ring is 6.68 (8)°. In the crystal, the molecules are dimerized due to N—H⋯O interactions. π–π interactions are present between the benzene rings [centroid–centroid distance = 3.6913 (15) Å] and between the five membered ring and the trifluoromethyl)phenyl ring [centroids–centroid distance = 3.7827 (16) Å]. One of the trifluoromethoxy F atoms is disordered over two sites with occupancy ratio of 0.76 (3):0.24 (3). The F atoms of the p-trifluoromethyl substituent are disordered over three sets of sites with an occupancy ratio of 0.70 (2):0.152 (11):0.147 (13).
Related literature
For background to the synthesis, see: Pervez et al. (2009, 2010b,c). For a related structure, see: Pervez et al. (2010a). For graph-set notation, 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 for Windows (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON.
Supporting information
10.1107/S1600536810023494/si2270sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810023494/si2270Isup2.hkl
4-(4-Trifluoromethylphenyl)thiosemicarbazide (0.94 g, 4.0 mmol) dissolved in ethanol (10 ml) was added to a hot solution of 5-(trifluoromethoxy)indolin-2,3-dione (0.92 g, 4.0 mmol) in 50% aqueous ethanol (20 ml) containing a catalytic quantity of glacial acetic acid. The reaction mixture was then refluxed for 2 h. The yellow powder formed during refluxing was collected by suction filtration. Thorough washing with hot aqueous ethanol afforded the title compound (I) in pure form (1.34 g, 75%), m.p. 513 K. The yellow crystals of the title compound for x-ray analysis were obtained from the solution of ethyl acetate-petroleum ether (2:5) at room temperature by diffusion method.
The
dictated that only one F-atom of trifluoromethoxy group and all F-atoms of p-trifluoromethyl function are disordered. The best result is obtained if F-atom of trifluoromethoxy group is refined over two set of sites with occupancy ratio of 0.76 (3):0.24 (3) with equal anisotropic thermal parameters. Similarly to get the best result F-atoms of p-trifluoromethyl function are treated disordered over three set of sites with occupancy ratio of 0.70 (2):0.152 (11):0.147 (13). In these sets, the minor groups are treated anisotropically with equal thermal parameters and the major group as anisotropic having different thermal parameters.The H-atoms were positioned geometrically (N–H = 0.86 Å, C–H = 0.93 Å) and refined as riding with Uiso(H) = xUeq(C, N), where x = 1.2 for all H-atoms.
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 for Windows (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).C17H10F6N4O2S | Z = 2 |
Mr = 448.35 | F(000) = 452 |
Triclinic, P1 | Dx = 1.589 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.5452 (11) Å | Cell parameters from 2191 reflections |
b = 8.3177 (13) Å | θ = 2.6–25.3° |
c = 16.048 (2) Å | µ = 0.25 mm−1 |
α = 104.452 (6)° | T = 296 K |
β = 94.752 (7)° | Prism, yellow |
γ = 103.606 (7)° | 0.32 × 0.24 × 0.22 mm |
V = 937.1 (2) Å3 |
Bruker Kappa APEXII CCD diffractometer | 3351 independent reflections |
Radiation source: fine-focus sealed tube | 2191 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.045 |
Detector resolution: 8.2 pixels mm-1 | θmax = 25.3°, θmin = 2.6° |
ω scans | h = −9→6 |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | k = −9→9 |
Tmin = 0.942, Tmax = 0.952 | l = −19→19 |
13964 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)] = 0.043 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.113 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0501P)2 + 0.1774P] where P = (Fo2 + 2Fc2)/3 |
3351 reflections | (Δ/σ)max = 0.001 |
302 parameters | Δρmax = 0.24 e Å−3 |
11 restraints | Δρmin = −0.24 e Å−3 |
C17H10F6N4O2S | γ = 103.606 (7)° |
Mr = 448.35 | V = 937.1 (2) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.5452 (11) Å | Mo Kα radiation |
b = 8.3177 (13) Å | µ = 0.25 mm−1 |
c = 16.048 (2) Å | T = 296 K |
α = 104.452 (6)° | 0.32 × 0.24 × 0.22 mm |
β = 94.752 (7)° |
Bruker Kappa APEXII CCD diffractometer | 3351 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 2191 reflections with I > 2σ(I) |
Tmin = 0.942, Tmax = 0.952 | Rint = 0.045 |
13964 measured reflections |
R[F2 > 2σ(F2)] = 0.043 | 11 restraints |
wR(F2) = 0.113 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.24 e Å−3 |
3351 reflections | Δρmin = −0.24 e Å−3 |
302 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 | Occ. (<1) | |
S1 | 0.59532 (11) | 0.73584 (9) | 0.47879 (5) | 0.0642 (3) | |
F1A | 0.786 (2) | 1.3866 (16) | −0.0060 (4) | 0.113 (2) | 0.76 (3) |
F2 | 0.5218 (3) | 1.2388 (3) | −0.08045 (11) | 0.1050 (9) | |
F3 | 0.6805 (3) | 1.1403 (3) | −0.00024 (13) | 0.1212 (11) | |
F4A | 0.1431 (7) | −0.0888 (4) | 0.1803 (6) | 0.091 (2) | 0.70 (2) |
F5A | −0.0432 (14) | −0.0301 (5) | 0.0936 (4) | 0.110 (3) | 0.70 (2) |
F6A | −0.1071 (10) | −0.0475 (4) | 0.2190 (6) | 0.107 (2) | 0.70 (2) |
O1 | 0.8661 (2) | 1.2725 (2) | 0.48040 (11) | 0.0593 (7) | |
O2 | 0.5300 (3) | 1.3270 (2) | 0.05819 (12) | 0.0636 (7) | |
N1 | 0.8671 (3) | 1.4593 (3) | 0.39550 (13) | 0.0496 (7) | |
N2 | 0.5938 (3) | 1.0294 (2) | 0.32681 (12) | 0.0455 (7) | |
N3 | 0.6239 (3) | 0.9659 (3) | 0.39467 (13) | 0.0512 (7) | |
N4 | 0.4128 (3) | 0.7152 (2) | 0.32184 (13) | 0.0496 (7) | |
C1 | 0.8144 (3) | 1.3071 (3) | 0.41361 (16) | 0.0466 (9) | |
C2 | 0.7898 (3) | 1.4494 (3) | 0.31108 (16) | 0.0446 (8) | |
C3 | 0.8150 (3) | 1.5752 (3) | 0.26892 (17) | 0.0536 (9) | |
C4 | 0.7282 (3) | 1.5321 (3) | 0.18411 (18) | 0.0565 (10) | |
C5 | 0.6218 (3) | 1.3664 (3) | 0.14478 (16) | 0.0502 (9) | |
C6 | 0.5918 (3) | 1.2393 (3) | 0.18672 (15) | 0.0469 (8) | |
C7 | 0.6774 (3) | 1.2829 (3) | 0.27192 (15) | 0.0414 (8) | |
C8 | 0.6832 (3) | 1.1869 (3) | 0.33561 (15) | 0.0423 (8) | |
C9 | 0.6260 (5) | 1.2776 (5) | −0.0049 (2) | 0.0792 (14) | |
C10 | 0.5363 (3) | 0.8008 (3) | 0.39415 (15) | 0.0454 (8) | |
C11 | 0.3131 (3) | 0.5405 (3) | 0.29085 (16) | 0.0446 (8) | |
C12 | 0.2921 (4) | 0.4258 (3) | 0.34125 (17) | 0.0564 (9) | |
C13 | 0.1977 (4) | 0.2559 (3) | 0.30334 (18) | 0.0588 (10) | |
C14 | 0.1225 (3) | 0.1981 (3) | 0.21696 (18) | 0.0523 (9) | |
C15 | 0.1373 (3) | 0.3133 (3) | 0.16787 (18) | 0.0579 (9) | |
C16 | 0.2315 (3) | 0.4828 (3) | 0.20459 (17) | 0.0543 (9) | |
C17 | 0.0301 (5) | 0.0118 (4) | 0.1773 (2) | 0.0696 (13) | |
F6B | −0.128 (2) | −0.001 (2) | 0.1300 (17) | 0.084 (4) | 0.152 (11) |
F6C | 0.055 (4) | −0.041 (2) | 0.0970 (13) | 0.084 (4) | 0.147 (13) |
F4C | −0.1510 (19) | −0.023 (3) | 0.1788 (19) | 0.084 (4) | 0.147 (13) |
F1B | 0.727 (4) | 1.432 (4) | −0.0021 (14) | 0.113 (2) | 0.24 (3) |
F4B | −0.023 (4) | −0.061 (2) | 0.2404 (11) | 0.084 (4) | 0.152 (11) |
F5B | 0.143 (3) | −0.071 (2) | 0.138 (2) | 0.084 (4) | 0.152 (11) |
F5C | 0.096 (3) | −0.087 (2) | 0.2206 (18) | 0.084 (4) | 0.147 (13) |
H3A | 0.70052 | 1.03089 | 0.43980 | 0.0615* | |
H15 | 0.08340 | 0.27634 | 0.10976 | 0.0695* | |
H16 | 0.24060 | 0.55988 | 0.17100 | 0.0652* | |
H4 | 0.74155 | 1.61460 | 0.15357 | 0.0679* | |
H4A | 0.39115 | 0.77794 | 0.28900 | 0.0595* | |
H6 | 0.51745 | 1.12914 | 0.15911 | 0.0563* | |
H12 | 0.34120 | 0.46323 | 0.40001 | 0.0676* | |
H13 | 0.18465 | 0.17879 | 0.33702 | 0.0704* | |
H1 | 0.93911 | 1.55096 | 0.43112 | 0.0594* | |
H3 | 0.88805 | 1.68594 | 0.29640 | 0.0643* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0831 (5) | 0.0563 (5) | 0.0494 (4) | 0.0101 (4) | −0.0045 (4) | 0.0202 (3) |
F1A | 0.091 (5) | 0.147 (5) | 0.0733 (15) | −0.016 (4) | 0.027 (2) | 0.021 (2) |
F2 | 0.1342 (17) | 0.1161 (16) | 0.0486 (11) | 0.0132 (13) | −0.0175 (11) | 0.0230 (11) |
F3 | 0.178 (2) | 0.136 (2) | 0.0743 (14) | 0.0873 (18) | 0.0274 (13) | 0.0277 (13) |
F4A | 0.105 (3) | 0.0511 (18) | 0.113 (5) | 0.0310 (18) | 0.026 (3) | 0.004 (2) |
F5A | 0.134 (8) | 0.064 (2) | 0.089 (3) | −0.012 (3) | −0.033 (4) | −0.002 (2) |
F6A | 0.086 (4) | 0.0480 (19) | 0.175 (6) | −0.009 (2) | 0.059 (4) | 0.023 (3) |
O1 | 0.0684 (12) | 0.0488 (11) | 0.0473 (11) | −0.0009 (9) | −0.0120 (9) | 0.0116 (9) |
O2 | 0.0700 (12) | 0.0651 (13) | 0.0498 (12) | 0.0093 (10) | −0.0072 (10) | 0.0186 (10) |
N1 | 0.0535 (12) | 0.0370 (12) | 0.0440 (13) | −0.0028 (10) | −0.0063 (10) | 0.0041 (10) |
N2 | 0.0528 (12) | 0.0378 (12) | 0.0411 (12) | 0.0051 (10) | 0.0037 (9) | 0.0097 (10) |
N3 | 0.0637 (13) | 0.0373 (12) | 0.0429 (12) | 0.0005 (10) | −0.0051 (10) | 0.0099 (10) |
N4 | 0.0601 (13) | 0.0369 (12) | 0.0454 (13) | 0.0016 (10) | −0.0052 (10) | 0.0149 (10) |
C1 | 0.0455 (14) | 0.0414 (15) | 0.0454 (16) | 0.0046 (12) | −0.0004 (12) | 0.0074 (12) |
C2 | 0.0440 (13) | 0.0374 (14) | 0.0451 (15) | 0.0033 (11) | 0.0033 (11) | 0.0063 (12) |
C3 | 0.0578 (16) | 0.0373 (14) | 0.0562 (18) | 0.0004 (12) | 0.0018 (13) | 0.0098 (13) |
C4 | 0.0645 (17) | 0.0438 (16) | 0.0597 (18) | 0.0063 (13) | 0.0051 (14) | 0.0204 (14) |
C5 | 0.0522 (15) | 0.0489 (16) | 0.0448 (16) | 0.0082 (13) | −0.0023 (12) | 0.0125 (13) |
C6 | 0.0493 (14) | 0.0387 (14) | 0.0456 (15) | 0.0047 (11) | 0.0006 (12) | 0.0077 (12) |
C7 | 0.0415 (13) | 0.0363 (13) | 0.0399 (14) | 0.0037 (11) | 0.0015 (10) | 0.0067 (11) |
C8 | 0.0432 (13) | 0.0363 (14) | 0.0402 (14) | 0.0036 (11) | 0.0006 (10) | 0.0061 (11) |
C9 | 0.102 (3) | 0.077 (2) | 0.051 (2) | 0.007 (2) | −0.0007 (19) | 0.0236 (18) |
C10 | 0.0521 (14) | 0.0402 (14) | 0.0410 (15) | 0.0097 (12) | 0.0049 (12) | 0.0092 (12) |
C11 | 0.0472 (14) | 0.0373 (14) | 0.0460 (15) | 0.0052 (11) | 0.0046 (11) | 0.0120 (12) |
C12 | 0.0705 (17) | 0.0460 (16) | 0.0491 (16) | 0.0049 (14) | 0.0042 (13) | 0.0185 (13) |
C13 | 0.0663 (17) | 0.0435 (16) | 0.066 (2) | 0.0047 (14) | 0.0098 (15) | 0.0235 (14) |
C14 | 0.0462 (14) | 0.0398 (15) | 0.0637 (18) | 0.0012 (12) | 0.0083 (13) | 0.0111 (14) |
C15 | 0.0589 (16) | 0.0521 (17) | 0.0497 (16) | −0.0004 (13) | −0.0030 (13) | 0.0086 (14) |
C16 | 0.0620 (16) | 0.0464 (16) | 0.0490 (16) | 0.0010 (13) | −0.0004 (13) | 0.0186 (13) |
C17 | 0.069 (2) | 0.0494 (18) | 0.081 (3) | 0.0013 (17) | 0.0123 (19) | 0.0147 (17) |
F6B | 0.080 (6) | 0.053 (4) | 0.097 (8) | 0.003 (3) | 0.026 (5) | −0.007 (4) |
F6C | 0.080 (6) | 0.053 (4) | 0.097 (8) | 0.003 (3) | 0.026 (5) | −0.007 (4) |
F4C | 0.080 (6) | 0.053 (4) | 0.097 (8) | 0.003 (3) | 0.026 (5) | −0.007 (4) |
F1B | 0.091 (5) | 0.147 (5) | 0.0733 (15) | −0.016 (4) | 0.027 (2) | 0.021 (2) |
F4B | 0.080 (6) | 0.053 (4) | 0.097 (8) | 0.003 (3) | 0.026 (5) | −0.007 (4) |
F5B | 0.080 (6) | 0.053 (4) | 0.097 (8) | 0.003 (3) | 0.026 (5) | −0.007 (4) |
F5C | 0.080 (6) | 0.053 (4) | 0.097 (8) | 0.003 (3) | 0.026 (5) | −0.007 (4) |
S1—C10 | 1.648 (3) | N3—H3A | 0.8600 |
F1A—C9 | 1.333 (15) | N4—H4A | 0.8600 |
F1B—C9 | 1.32 (3) | C1—C8 | 1.500 (3) |
F2—C9 | 1.311 (4) | C2—C7 | 1.399 (4) |
F3—C9 | 1.318 (5) | C2—C3 | 1.367 (4) |
F4A—C17 | 1.334 (6) | C3—C4 | 1.381 (4) |
F4B—C17 | 1.346 (18) | C4—C5 | 1.380 (4) |
F4C—C17 | 1.332 (17) | C5—C6 | 1.375 (4) |
F5A—C17 | 1.336 (7) | C6—C7 | 1.384 (3) |
F5B—C17 | 1.32 (2) | C7—C8 | 1.449 (3) |
F5C—C17 | 1.35 (2) | C11—C16 | 1.383 (4) |
F6A—C17 | 1.342 (8) | C11—C12 | 1.387 (4) |
F6B—C17 | 1.33 (2) | C12—C13 | 1.378 (4) |
F6C—C17 | 1.30 (2) | C13—C14 | 1.372 (4) |
O1—C1 | 1.233 (3) | C14—C15 | 1.376 (4) |
O2—C9 | 1.331 (4) | C14—C17 | 1.489 (4) |
O2—C5 | 1.423 (3) | C15—C16 | 1.373 (4) |
N1—C1 | 1.346 (4) | C3—H3 | 0.9300 |
N1—C2 | 1.405 (3) | C4—H4 | 0.9300 |
N2—N3 | 1.349 (3) | C6—H6 | 0.9300 |
N2—C8 | 1.291 (3) | C12—H12 | 0.9300 |
N3—C10 | 1.374 (4) | C13—H13 | 0.9300 |
N4—C10 | 1.348 (3) | C15—H15 | 0.9300 |
N4—C11 | 1.410 (3) | C16—H16 | 0.9300 |
N1—H1 | 0.8600 | ||
S1···N1i | 3.524 (3) | N3···O1 | 2.716 (3) |
S1···C12 | 3.210 (3) | N4···N2 | 2.627 (3) |
S1···C13ii | 3.687 (3) | N2···H4A | 2.1900 |
S1···C1iii | 3.652 (3) | C1···C13vi | 3.568 (4) |
S1···C12ii | 3.597 (3) | C1···S1iii | 3.652 (3) |
S1···H12 | 2.5600 | C3···F6Axii | 3.362 (5) |
S1···H12ii | 2.9300 | C3···F4Bxii | 3.147 (18) |
S1···H13ii | 3.1000 | C3···C16vi | 3.579 (3) |
F1A···C4 | 3.097 (8) | C3···C10xi | 3.558 (3) |
F1A···F5Biv | 3.12 (3) | C4···F6Axii | 3.309 (5) |
F1B···C4 | 2.89 (2) | C4···F4Bxii | 3.316 (19) |
F2···F4Cv | 3.01 (2) | C4···F1A | 3.097 (8) |
F2···F6Bv | 3.071 (17) | C4···F1B | 2.89 (2) |
F3···C6 | 3.080 (3) | C5···C16xi | 3.446 (3) |
F3···F6Bvi | 3.06 (2) | C6···F6Bvi | 3.270 (17) |
F3···F5Biv | 2.68 (3) | C6···C14xi | 3.562 (3) |
F3···F6Civ | 2.78 (3) | C6···F4Cvi | 3.23 (2) |
F4B···C3vii | 3.147 (18) | C6···F3 | 3.080 (3) |
F4B···C4vii | 3.316 (19) | C7···F4Cvi | 3.22 (2) |
F4C···C8viii | 3.21 (3) | C7···C12xi | 3.550 (4) |
F4C···C6viii | 3.23 (2) | C8···F6Avi | 3.151 (8) |
F4C···C7viii | 3.22 (2) | C8···F4Cvi | 3.21 (3) |
F4C···N2viii | 3.19 (2) | C9···F5Biv | 3.28 (3) |
F4C···F2v | 3.01 (2) | C10···C3i | 3.558 (3) |
F5B···F1Aiv | 3.12 (3) | C12···C7i | 3.550 (4) |
F5B···F3iv | 2.68 (3) | C12···S1 | 3.210 (3) |
F5B···C9iv | 3.28 (3) | C12···S1ii | 3.597 (3) |
F6A···C3vii | 3.362 (5) | C12···N1viii | 3.447 (4) |
F6A···C8viii | 3.151 (8) | C13···S1ii | 3.687 (3) |
F6A···N2viii | 3.045 (8) | C13···C1viii | 3.568 (4) |
F6A···C4vii | 3.309 (5) | C14···C6i | 3.562 (3) |
F6B···F2v | 3.071 (17) | C16···C5i | 3.446 (3) |
F6B···C6viii | 3.270 (17) | C16···C3viii | 3.579 (3) |
F6B···F3viii | 3.06 (2) | C1···H1x | 2.7900 |
F6C···F3iv | 2.78 (3) | C1···H3A | 2.4100 |
F1A···H16ix | 2.7900 | C10···H12 | 2.8800 |
F1B···H4 | 2.5600 | H1···O1x | 1.9800 |
F1B···H16ix | 2.7600 | H1···C1x | 2.7900 |
F4A···H13 | 2.8500 | H3···F4Bxii | 2.4600 |
F4B···H3vii | 2.4600 | H3···F6Axii | 2.7900 |
F4B···H4vii | 2.8000 | H3···F5Cxii | 2.7500 |
F4B···H13 | 2.3300 | H3A···C1 | 2.4100 |
F4C···H4vii | 2.8500 | H3A···O1 | 2.0100 |
F5A···H15 | 2.4400 | H4···F1B | 2.5600 |
F5B···H6i | 2.8700 | H4···F6Axii | 2.6700 |
F5C···H13 | 2.4200 | H4···F4Bxii | 2.8000 |
F5C···H3vii | 2.7500 | H4···F4Cxii | 2.8500 |
F6A···H3vii | 2.7900 | H4A···N2 | 2.1900 |
F6A···H13 | 2.7500 | H4A···H16 | 2.2600 |
F6A···H4vii | 2.6700 | H6···F5Bxi | 2.8700 |
F6B···H15 | 2.5900 | H12···C10 | 2.8800 |
F6C···H15 | 2.5500 | H12···S1 | 2.5600 |
O1···N2 | 3.017 (3) | H12···S1ii | 2.9300 |
O1···N1x | 2.829 (3) | H13···F6A | 2.7500 |
O1···N3 | 2.716 (3) | H13···F4A | 2.8500 |
O1···H3A | 2.0100 | H13···S1ii | 3.1000 |
O1···H1x | 1.9800 | H13···F4B | 2.3300 |
N1···O1x | 2.829 (3) | H13···F5C | 2.4200 |
N1···C12vi | 3.447 (4) | H15···F6C | 2.5500 |
N1···S1xi | 3.524 (3) | H15···F6B | 2.5900 |
N2···O1 | 3.017 (3) | H15···F5A | 2.4400 |
N2···N4 | 2.627 (3) | H16···F1Aix | 2.7900 |
N2···F4Cvi | 3.19 (2) | H16···F1Bix | 2.7600 |
N2···F6Avi | 3.045 (8) | H16···H4A | 2.2600 |
C5—O2—C9 | 115.9 (2) | N4—C11—C16 | 116.8 (2) |
C1—N1—C2 | 111.5 (2) | N4—C11—C12 | 124.2 (2) |
N3—N2—C8 | 116.3 (2) | C11—C12—C13 | 119.3 (2) |
N2—N3—C10 | 122.3 (2) | C12—C13—C14 | 121.4 (2) |
C10—N4—C11 | 131.0 (2) | C13—C14—C15 | 119.2 (2) |
C2—N1—H1 | 124.00 | C13—C14—C17 | 119.8 (2) |
C1—N1—H1 | 124.00 | C15—C14—C17 | 121.0 (3) |
N2—N3—H3A | 119.00 | C14—C15—C16 | 120.1 (3) |
C10—N3—H3A | 119.00 | C11—C16—C15 | 120.9 (2) |
C10—N4—H4A | 114.00 | F4A—C17—C14 | 113.1 (4) |
C11—N4—H4A | 114.00 | F4A—C17—F5A | 105.1 (6) |
O1—C1—N1 | 126.9 (2) | F4A—C17—F6A | 104.2 (4) |
N1—C1—C8 | 106.3 (2) | F5C—C17—C14 | 111.4 (10) |
O1—C1—C8 | 126.8 (2) | F6B—C17—C14 | 108.0 (8) |
N1—C2—C7 | 109.2 (2) | F6C—C17—C14 | 112.3 (9) |
N1—C2—C3 | 128.5 (2) | F4B—C17—F5B | 107.0 (15) |
C3—C2—C7 | 122.3 (2) | F4B—C17—F6B | 103.6 (16) |
C2—C3—C4 | 117.7 (2) | F4C—C17—F5C | 106.9 (15) |
C3—C4—C5 | 119.9 (2) | F4C—C17—F6C | 107.7 (18) |
C4—C5—C6 | 123.2 (2) | F5B—C17—F6B | 116.9 (16) |
O2—C5—C4 | 118.6 (2) | F5C—C17—F6C | 106.5 (15) |
O2—C5—C6 | 118.1 (2) | F5A—C17—F6A | 106.0 (6) |
C5—C6—C7 | 116.9 (2) | F5A—C17—C14 | 115.0 (3) |
C2—C7—C8 | 106.7 (2) | F6A—C17—C14 | 112.5 (4) |
C6—C7—C8 | 133.3 (2) | F4B—C17—C14 | 109.2 (8) |
C2—C7—C6 | 120.0 (2) | F4C—C17—C14 | 111.7 (12) |
C1—C8—C7 | 106.2 (2) | F5B—C17—C14 | 111.7 (9) |
N2—C8—C1 | 127.0 (2) | C2—C3—H3 | 121.00 |
N2—C8—C7 | 126.9 (2) | C4—C3—H3 | 121.00 |
F1A—C9—F3 | 100.9 (7) | C3—C4—H4 | 120.00 |
F1A—C9—F2 | 109.0 (4) | C5—C4—H4 | 120.00 |
F1B—C9—O2 | 97.3 (12) | C5—C6—H6 | 122.00 |
F1A—C9—O2 | 117.2 (5) | C7—C6—H6 | 122.00 |
F2—C9—F3 | 107.5 (3) | C11—C12—H12 | 120.00 |
F2—C9—O2 | 109.1 (3) | C13—C12—H12 | 120.00 |
F1B—C9—F2 | 100.0 (11) | C12—C13—H13 | 119.00 |
F3—C9—O2 | 112.6 (3) | C14—C13—H13 | 119.00 |
F1B—C9—F3 | 128.7 (14) | C14—C15—H15 | 120.00 |
S1—C10—N3 | 117.20 (18) | C16—C15—H15 | 120.00 |
S1—C10—N4 | 129.66 (19) | C11—C16—H16 | 120.00 |
N3—C10—N4 | 113.1 (2) | C15—C16—H16 | 120.00 |
C12—C11—C16 | 119.0 (2) | ||
C9—O2—C5—C4 | 88.2 (3) | C2—C3—C4—C5 | −0.5 (4) |
C9—O2—C5—C6 | −95.3 (3) | C3—C4—C5—O2 | 178.3 (2) |
C5—O2—C9—F1A | −58.3 (7) | C3—C4—C5—C6 | 1.9 (4) |
C5—O2—C9—F2 | 177.3 (2) | O2—C5—C6—C7 | −177.7 (2) |
C5—O2—C9—F3 | 58.1 (4) | C4—C5—C6—C7 | −1.3 (4) |
C2—N1—C1—O1 | 176.1 (2) | C5—C6—C7—C2 | −0.6 (3) |
C2—N1—C1—C8 | −2.7 (3) | C5—C6—C7—C8 | −178.4 (2) |
C1—N1—C2—C3 | −178.1 (2) | C2—C7—C8—N2 | 177.6 (2) |
C1—N1—C2—C7 | 1.2 (3) | C2—C7—C8—C1 | −2.6 (3) |
C8—N2—N3—C10 | 179.4 (2) | C6—C7—C8—N2 | −4.4 (4) |
N3—N2—C8—C1 | −1.0 (4) | C6—C7—C8—C1 | 175.4 (3) |
N3—N2—C8—C7 | 178.8 (2) | N4—C11—C12—C13 | −177.5 (3) |
N2—N3—C10—S1 | 176.33 (19) | C16—C11—C12—C13 | 2.9 (4) |
N2—N3—C10—N4 | −3.3 (3) | N4—C11—C16—C15 | 177.6 (2) |
C11—N4—C10—S1 | −8.8 (4) | C12—C11—C16—C15 | −2.7 (4) |
C11—N4—C10—N3 | 170.8 (2) | C11—C12—C13—C14 | −0.6 (4) |
C10—N4—C11—C12 | 15.8 (4) | C12—C13—C14—C15 | −1.9 (4) |
C10—N4—C11—C16 | −164.5 (2) | C12—C13—C14—C17 | 176.8 (3) |
O1—C1—C8—N2 | 4.2 (4) | C13—C14—C15—C16 | 2.1 (4) |
O1—C1—C8—C7 | −175.6 (2) | C17—C14—C15—C16 | −176.6 (3) |
N1—C1—C8—N2 | −176.9 (2) | C13—C14—C17—F4A | −61.2 (5) |
N1—C1—C8—C7 | 3.3 (3) | C13—C14—C17—F5A | 178.1 (6) |
N1—C2—C3—C4 | 177.7 (2) | C13—C14—C17—F6A | 56.5 (5) |
C7—C2—C3—C4 | −1.5 (4) | C15—C14—C17—F4A | 117.4 (5) |
N1—C2—C7—C6 | −177.3 (2) | C15—C14—C17—F5A | −3.3 (6) |
N1—C2—C7—C8 | 1.0 (3) | C15—C14—C17—F6A | −124.9 (4) |
C3—C2—C7—C6 | 2.1 (4) | C14—C15—C16—C11 | 0.2 (4) |
C3—C2—C7—C8 | −179.7 (2) |
Symmetry codes: (i) x, y−1, z; (ii) −x+1, −y+1, −z+1; (iii) −x+1, −y+2, −z+1; (iv) −x+1, −y+1, −z; (v) −x, −y+1, −z; (vi) x+1, y+1, z; (vii) x−1, y−2, z; (viii) x−1, y−1, z; (ix) −x+1, −y+2, −z; (x) −x+2, −y+3, −z+1; (xi) x, y+1, z; (xii) x+1, y+2, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1x | 0.8600 | 1.9800 | 2.829 (3) | 168.00 |
N3—H3A···O1 | 0.8600 | 2.0100 | 2.716 (3) | 138.00 |
N4—H4A···N2 | 0.8600 | 2.1900 | 2.627 (3) | 111.00 |
C12—H12···S1 | 0.9300 | 2.5600 | 3.210 (3) | 128.00 |
C15—H15···F5A | 0.9300 | 2.4400 | 2.763 (6) | 100.00 |
Symmetry code: (x) −x+2, −y+3, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C17H10F6N4O2S |
Mr | 448.35 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 7.5452 (11), 8.3177 (13), 16.048 (2) |
α, β, γ (°) | 104.452 (6), 94.752 (7), 103.606 (7) |
V (Å3) | 937.1 (2) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.25 |
Crystal size (mm) | 0.32 × 0.24 × 0.22 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.942, 0.952 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 13964, 3351, 2191 |
Rint | 0.045 |
(sin θ/λ)max (Å−1) | 0.600 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.043, 0.113, 1.02 |
No. of reflections | 3351 |
No. of parameters | 302 |
No. of restraints | 11 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.24, −0.24 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (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 |
N1—H1···O1i | 0.8600 | 1.9800 | 2.829 (3) | 168.00 |
N3—H3A···O1 | 0.8600 | 2.0100 | 2.716 (3) | 138.00 |
N4—H4A···N2 | 0.8600 | 2.1900 | 2.627 (3) | 111.00 |
C12—H12···S1 | 0.9300 | 2.5600 | 3.210 (3) | 128.00 |
C15—H15···F5A | 0.9300 | 2.4400 | 2.763 (6) | 100.00 |
Symmetry code: (i) −x+2, −y+3, −z+1. |
Acknowledgements
This work was supported by the Higher Education Commission (HEC), Pakistan (project No. 20–873/R&D/07/452).
References
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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.
In continuation of our earlier studies on the synthesis of biologically important N4-arylsubstituted isatins-3-thiosemicarbazones (Pervez et al., 2009, 2010b, 2010c), here we report the synthesis and crystal structure of the title compound (I, Fig. 1).
The crystal structure of (II) i.e. 4-(5-chloro-2-methylphenyl)-1-(2-oxo-5-(trifluoromethoxy) indolin-3-ylidene) thiosemicarbazide has been published (Pervez et al., 2010a). The title compound (I) differs from (II) due to the presence of trifluoromethyl group at position-4 instead of methyl and chloro functions at position-2 and -5, respectively, of the phenyl ring substituted at N4- of the thiosemicarbazone moiety.
In (I), the 2-oxoindolin A (C1–C8/N1/O1), thiosemicarbazone moiety B (N2/N3/C10/S1/N4) and the phenyl ring C (C11—C16) having p-trifluoromethyl function are planar with r. m. s. deviations of 0.0402, 0.0184 and 0.0119 Å, respectively. The dihedral angle between A/B, A/C and B/C is 6.78 (9), 6.68 (8) and 13.42 (10)°, respectively. Due to intramolecular H-bondings (Table 1, Fig. 1), one S(5) and two S(6) (Bernstein et al., 1995) ring motifs are formed. The molecules are dimerized (Fig. 2) due to intermolecular H-bonding of N—H···O type with R22(8) ring motifs. The dimers are interlinked through C—H···F type of H-bonding. There exist π···π interaction at a distance of 3.6913 (15) Å between the centroids of phenyl rings (C2—C7) and (C11—C16). Similarly, π···π interaction between the centroids of the heterocyclic ring (N1/C1/C8/C7/C2) and the phenyl ring (C11—C16) is 3.7827 (16) Å.
One of the F-atom of trifluoromethoxy group is disordered over two set of sites with occupancy ratio of 0.76 (3):0.24 (3). The F-atoms of p-trifluoromethyl function are disordered over three groups with occupancy ratio of 0.70 (2):0.152 (11):0.147 (13).