organic compounds
N-(Biphenyl-4-carbonyl)-N′-(4-chlorophenyl)thiourea
aSchool of Chemical Sciences and Food Technology, Universiti Kebangsaan Malaysia, UKM 43500 Bangi Selangor, Malaysia
*Correspondence e-mail: mayaasyikin_ns@yahoo.com
In the title compound, C20H15ClN2OS, the benzene rings of the biphenyl group are at an angle of 44.23 (12)°. The C4N2OS central thiourea fragment makes dihedral angles with the benzene carbonyl and chlorobenzene rings of 55.96 (9) and 64.09 (9)°, respectively. The trans–cis geometry of the thiourea group is stabilized by the intramolecular hydrogen bond between the carbonyl O atom and the H atom of the cis-thioamide. In the molecules are linked by N—H⋯S and N—H⋯O intermolecular hydrogen bonds to form one-dimensional chains along the c axis. C—H⋯π interactions also contribute to the stability of the molecule.
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2000); cell SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997a); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997a); molecular graphics: SHELXTL (Sheldrick, 1997b); software used to prepare material for publication: SHELXTL, PARST (Nardelli, 1995) and PLATON (Spek, 2003).
Supporting information
https://doi.org/10.1107/S1600536807062265/su2027sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807062265/su2027Isup2.hkl
A solution of 4-chloroaniline (0.63 g, 2.5 mmol) in 20 ml acetone was added dropwise to a two-necked round-bottomed flask containing an equimolar amount of biphenylcarbomoylisothiocyanate (0.60 g, 2.5 mmol) in 20 ml of acetone. The mixture was refluxed for about 3 h. The light yellow solution was filtered and the filtrate allowed to evaporate at room temperature. Colourless crystals were obtained after five days (yield 0.71 g, 85%, m.p.: 164–166°C).
H atoms on C and N atoms were positioned geometrically with C—H = 0.93 and N—H = 0.86 Å, and constrained to ride on their parent atoms with Uiso(H)= 1.2Ueq(parent atom).
The title compound (Fig. 1) is an isomeric analog of the previously reported N-(biphenyl-4-carbonyl)-N'-(2-chlorophenyl) thiourea (II) (Arif and Yamin, 2007). The dihedral angle between the two benzene rings in the biphenyl fragment is 44.23 (12)°, which is double the value of 20.71 (17)° in (II). The examination on the planarity of the central thiourea fragment S1/N1/N2/C14 and the chlorophenyl plane (C15—C20)/Cl1, indicates that they are planar. The central thiourea fragment makes dihedral angles with the benzene carbonyl and chlorobenzene rings of 55.96 (9) and 64.09 (9)°, respectively. The trans-cis geometry in the thiourea moiety is stabilized by the N2—H2···O1 intramolecular hydrogen bond (Table 1).
In the π interaction; the distance between H1A and the (C15—C20) ring centroid is 2.98 Å, and the angle about the hydrogen atom is 124°.
symmetry related molecules are linked by N1—H1···S1i and N2—H2···O1ii intermolecular hydrogen bonds to form one-dimensional chains along the c axis (Fig. 2 and Table 1). The molecule is also stabilized by a C1—H1A···For related literature, see: Allen et al. (1987); Arif & Yamin (2007).
Data collection: SMART (Bruker, 2000); cell
SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997a); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997a); molecular graphics: SHELXTL (Sheldrick, 1997b); software used to prepare material for publication: SHELXTL, PARST (Nardelli, 1995) and PLATON (Spek, 2003).C20H15ClN2OS | F(000) = 760 |
Mr = 366.85 | Dx = 1.384 Mg m−3 |
Monoclinic, P2/c | Melting point: 164-166°C K |
Hall symbol: -P 2yc | Mo Kα radiation, λ = 0.71073 Å |
a = 16.039 (7) Å | Cell parameters from 1713 reflections |
b = 6.087 (3) Å | θ = 2.2–26.0° |
c = 18.096 (8) Å | µ = 0.35 mm−1 |
β = 94.780 (8)° | T = 298 K |
V = 1760.5 (14) Å3 | Block, colourless |
Z = 4 | 0.49 × 0.46 × 0.10 mm |
Bruker SMART APEX CCD area-detector diffractometer | 3475 independent reflections |
Radiation source: fine-focus sealed tube | 2278 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.037 |
ω scan | θmax = 26.0°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | h = −19→18 |
Tmin = 0.848, Tmax = 0.966 | k = −7→7 |
9371 measured reflections | l = −22→12 |
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) = 0.122 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0596P)2 + 0.0946P] where P = (Fo2 + 2Fc2)/3 |
3475 reflections | (Δ/σ)max < 0.001 |
226 parameters | Δρmax = 0.28 e Å−3 |
0 restraints | Δρmin = −0.22 e Å−3 |
C20H15ClN2OS | V = 1760.5 (14) Å3 |
Mr = 366.85 | Z = 4 |
Monoclinic, P2/c | Mo Kα radiation |
a = 16.039 (7) Å | µ = 0.35 mm−1 |
b = 6.087 (3) Å | T = 298 K |
c = 18.096 (8) Å | 0.49 × 0.46 × 0.10 mm |
β = 94.780 (8)° |
Bruker SMART APEX CCD area-detector diffractometer | 3475 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | 2278 reflections with I > 2σ(I) |
Tmin = 0.848, Tmax = 0.966 | Rint = 0.037 |
9371 measured reflections |
R[F2 > 2σ(F2)] = 0.049 | 0 restraints |
wR(F2) = 0.122 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.28 e Å−3 |
3475 reflections | Δρmin = −0.22 e Å−3 |
226 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 | ||
Cl1 | 1.37861 (5) | 0.39472 (17) | 0.18867 (5) | 0.1065 (4) | |
S1 | 1.08379 (4) | 0.38002 (11) | 0.42312 (3) | 0.0553 (2) | |
O1 | 0.95079 (10) | 0.9893 (3) | 0.32501 (9) | 0.0591 (5) | |
N1 | 0.97515 (11) | 0.7034 (3) | 0.40513 (10) | 0.0483 (5) | |
H1 | 0.9564 | 0.6440 | 0.4435 | 0.058* | |
N2 | 1.07779 (10) | 0.7027 (3) | 0.32382 (10) | 0.0487 (5) | |
H2 | 1.0537 | 0.8194 | 0.3057 | 0.058* | |
C1 | 0.79626 (14) | 0.7695 (4) | 0.42417 (12) | 0.0505 (6) | |
H1A | 0.8026 | 0.6333 | 0.4020 | 0.061* | |
C2 | 0.72746 (13) | 0.8084 (4) | 0.46287 (13) | 0.0504 (6) | |
H2A | 0.6872 | 0.6993 | 0.4656 | 0.060* | |
C3 | 0.71742 (13) | 1.0086 (4) | 0.49788 (12) | 0.0445 (6) | |
C4 | 0.64556 (14) | 1.0439 (4) | 0.54340 (13) | 0.0481 (6) | |
C5 | 0.62285 (15) | 0.8839 (4) | 0.59148 (14) | 0.0601 (7) | |
H5 | 0.6532 | 0.7538 | 0.5957 | 0.072* | |
C6 | 0.55587 (17) | 0.9127 (5) | 0.63367 (16) | 0.0752 (9) | |
H6 | 0.5416 | 0.8032 | 0.6661 | 0.090* | |
C7 | 0.51023 (17) | 1.1049 (6) | 0.62738 (16) | 0.0749 (9) | |
H7 | 0.4645 | 1.1246 | 0.6550 | 0.090* | |
C8 | 0.53267 (16) | 1.2669 (5) | 0.58009 (16) | 0.0759 (9) | |
H8 | 0.5026 | 1.3976 | 0.5763 | 0.091* | |
C9 | 0.59943 (15) | 1.2364 (5) | 0.53843 (15) | 0.0627 (7) | |
H9 | 0.6139 | 1.3468 | 0.5064 | 0.075* | |
C10 | 0.77729 (14) | 1.1700 (4) | 0.49070 (13) | 0.0525 (6) | |
H10 | 0.7713 | 1.3058 | 0.5132 | 0.063* | |
C11 | 0.84582 (14) | 1.1326 (4) | 0.45067 (13) | 0.0519 (6) | |
H11 | 0.8850 | 1.2432 | 0.4458 | 0.062* | |
C12 | 0.85579 (13) | 0.9293 (4) | 0.41789 (12) | 0.0431 (5) | |
C13 | 0.93135 (13) | 0.8825 (4) | 0.37742 (12) | 0.0451 (6) | |
C14 | 1.04533 (13) | 0.6039 (4) | 0.38029 (12) | 0.0425 (5) | |
C15 | 1.15067 (13) | 0.6247 (4) | 0.29167 (11) | 0.0426 (5) | |
C16 | 1.22033 (14) | 0.7565 (5) | 0.29525 (12) | 0.0572 (7) | |
H16 | 1.2199 | 0.8927 | 0.3185 | 0.069* | |
C17 | 1.29127 (15) | 0.6842 (5) | 0.26385 (15) | 0.0679 (8) | |
H17 | 1.3389 | 0.7719 | 0.2655 | 0.081* | |
C18 | 1.29059 (15) | 0.4827 (5) | 0.23047 (14) | 0.0605 (7) | |
C19 | 1.22169 (16) | 0.3514 (4) | 0.22703 (14) | 0.0594 (7) | |
H19 | 1.2226 | 0.2141 | 0.2046 | 0.071* | |
C20 | 1.15066 (15) | 0.4242 (4) | 0.25714 (13) | 0.0530 (6) | |
H20 | 1.1027 | 0.3376 | 0.2541 | 0.064* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0737 (5) | 0.1498 (9) | 0.1022 (7) | 0.0428 (5) | 0.0449 (5) | 0.0262 (6) |
S1 | 0.0576 (4) | 0.0604 (4) | 0.0499 (4) | 0.0152 (3) | 0.0171 (3) | 0.0127 (3) |
O1 | 0.0684 (11) | 0.0584 (11) | 0.0528 (10) | 0.0138 (9) | 0.0183 (8) | 0.0152 (9) |
N1 | 0.0496 (11) | 0.0554 (13) | 0.0417 (11) | 0.0119 (10) | 0.0137 (9) | 0.0092 (9) |
N2 | 0.0495 (11) | 0.0530 (12) | 0.0454 (11) | 0.0088 (9) | 0.0138 (9) | 0.0096 (10) |
C1 | 0.0504 (14) | 0.0455 (15) | 0.0549 (15) | 0.0053 (12) | 0.0007 (11) | −0.0092 (12) |
C2 | 0.0434 (13) | 0.0483 (15) | 0.0594 (15) | −0.0066 (11) | 0.0039 (11) | −0.0050 (12) |
C3 | 0.0415 (12) | 0.0462 (15) | 0.0456 (13) | 0.0027 (11) | 0.0029 (10) | 0.0012 (11) |
C4 | 0.0419 (13) | 0.0507 (15) | 0.0519 (14) | −0.0052 (11) | 0.0046 (10) | −0.0057 (12) |
C5 | 0.0554 (15) | 0.0614 (18) | 0.0644 (17) | −0.0039 (13) | 0.0110 (13) | 0.0014 (14) |
C6 | 0.0655 (18) | 0.090 (2) | 0.0726 (19) | −0.0176 (17) | 0.0198 (15) | 0.0045 (17) |
C7 | 0.0504 (16) | 0.100 (3) | 0.077 (2) | −0.0100 (17) | 0.0222 (14) | −0.0116 (19) |
C8 | 0.0542 (17) | 0.084 (2) | 0.091 (2) | 0.0153 (15) | 0.0165 (15) | −0.0057 (18) |
C9 | 0.0575 (16) | 0.0625 (18) | 0.0699 (18) | 0.0081 (14) | 0.0166 (13) | 0.0053 (14) |
C10 | 0.0577 (15) | 0.0411 (14) | 0.0606 (16) | 0.0008 (12) | 0.0165 (12) | −0.0076 (12) |
C11 | 0.0524 (14) | 0.0462 (15) | 0.0590 (15) | −0.0046 (12) | 0.0157 (11) | −0.0034 (12) |
C12 | 0.0420 (12) | 0.0461 (14) | 0.0411 (13) | 0.0065 (11) | 0.0038 (10) | 0.0020 (11) |
C13 | 0.0470 (13) | 0.0482 (15) | 0.0399 (13) | 0.0018 (11) | 0.0017 (10) | −0.0025 (12) |
C14 | 0.0403 (12) | 0.0489 (14) | 0.0390 (12) | 0.0017 (11) | 0.0066 (9) | 0.0001 (11) |
C15 | 0.0441 (12) | 0.0497 (14) | 0.0347 (12) | 0.0004 (11) | 0.0077 (9) | 0.0060 (11) |
C16 | 0.0613 (16) | 0.0607 (18) | 0.0505 (15) | −0.0115 (13) | 0.0101 (12) | −0.0079 (13) |
C17 | 0.0453 (15) | 0.098 (2) | 0.0610 (17) | −0.0151 (15) | 0.0092 (12) | 0.0054 (17) |
C18 | 0.0505 (15) | 0.083 (2) | 0.0497 (15) | 0.0137 (15) | 0.0154 (12) | 0.0120 (15) |
C19 | 0.0757 (18) | 0.0522 (16) | 0.0529 (15) | 0.0090 (14) | 0.0196 (13) | 0.0009 (13) |
C20 | 0.0537 (15) | 0.0583 (17) | 0.0487 (14) | −0.0076 (12) | 0.0138 (11) | −0.0026 (13) |
Cl1—C18 | 1.741 (2) | C6—H6 | 0.9300 |
S1—C14 | 1.661 (2) | C7—C8 | 1.374 (4) |
O1—C13 | 1.212 (3) | C7—H7 | 0.9300 |
N1—C13 | 1.369 (3) | C8—C9 | 1.372 (3) |
N1—C14 | 1.386 (3) | C8—H8 | 0.9300 |
N1—H1 | 0.8600 | C9—H9 | 0.9300 |
N2—C14 | 1.329 (3) | C10—C11 | 1.385 (3) |
N2—C15 | 1.430 (3) | C10—H10 | 0.9300 |
N2—H2 | 0.8600 | C11—C12 | 1.387 (3) |
C1—C12 | 1.374 (3) | C11—H11 | 0.9300 |
C1—C2 | 1.376 (3) | C12—C13 | 1.495 (3) |
C1—H1A | 0.9300 | C15—C20 | 1.371 (3) |
C2—C3 | 1.389 (3) | C15—C16 | 1.373 (3) |
C2—H2A | 0.9300 | C16—C17 | 1.385 (3) |
C3—C10 | 1.387 (3) | C16—H16 | 0.9300 |
C3—C4 | 1.487 (3) | C17—C18 | 1.367 (4) |
C4—C5 | 1.375 (3) | C17—H17 | 0.9300 |
C4—C9 | 1.385 (3) | C18—C19 | 1.361 (4) |
C5—C6 | 1.380 (3) | C19—C20 | 1.376 (3) |
C5—H5 | 0.9300 | C19—H19 | 0.9300 |
C6—C7 | 1.380 (4) | C20—H20 | 0.9300 |
C13—N1—C14 | 129.43 (18) | C11—C10—C3 | 121.2 (2) |
C13—N1—H1 | 115.3 | C11—C10—H10 | 119.4 |
C14—N1—H1 | 115.3 | C3—C10—H10 | 119.4 |
C14—N2—C15 | 123.29 (19) | C10—C11—C12 | 119.7 (2) |
C14—N2—H2 | 118.4 | C10—C11—H11 | 120.2 |
C15—N2—H2 | 118.4 | C12—C11—H11 | 120.2 |
C12—C1—C2 | 120.8 (2) | C1—C12—C11 | 119.4 (2) |
C12—C1—H1A | 119.6 | C1—C12—C13 | 120.2 (2) |
C2—C1—H1A | 119.6 | C11—C12—C13 | 120.4 (2) |
C1—C2—C3 | 120.8 (2) | O1—C13—N1 | 123.8 (2) |
C1—C2—H2A | 119.6 | O1—C13—C12 | 123.6 (2) |
C3—C2—H2A | 119.6 | N1—C13—C12 | 112.62 (19) |
C10—C3—C2 | 118.1 (2) | N2—C14—N1 | 115.62 (19) |
C10—C3—C4 | 121.6 (2) | N2—C14—S1 | 125.19 (16) |
C2—C3—C4 | 120.3 (2) | N1—C14—S1 | 119.17 (16) |
C5—C4—C9 | 118.2 (2) | C20—C15—C16 | 120.7 (2) |
C5—C4—C3 | 120.5 (2) | C20—C15—N2 | 120.8 (2) |
C9—C4—C3 | 121.4 (2) | C16—C15—N2 | 118.5 (2) |
C4—C5—C6 | 121.3 (3) | C15—C16—C17 | 119.2 (3) |
C4—C5—H5 | 119.3 | C15—C16—H16 | 120.4 |
C6—C5—H5 | 119.3 | C17—C16—H16 | 120.4 |
C7—C6—C5 | 119.6 (3) | C18—C17—C16 | 119.3 (2) |
C7—C6—H6 | 120.2 | C18—C17—H17 | 120.3 |
C5—C6—H6 | 120.2 | C16—C17—H17 | 120.3 |
C8—C7—C6 | 119.7 (3) | C19—C18—C17 | 121.6 (2) |
C8—C7—H7 | 120.1 | C19—C18—Cl1 | 119.0 (2) |
C6—C7—H7 | 120.1 | C17—C18—Cl1 | 119.4 (2) |
C9—C8—C7 | 120.1 (3) | C18—C19—C20 | 119.3 (3) |
C9—C8—H8 | 119.9 | C18—C19—H19 | 120.4 |
C7—C8—H8 | 119.9 | C20—C19—H19 | 120.4 |
C8—C9—C4 | 121.1 (3) | C15—C20—C19 | 119.9 (2) |
C8—C9—H9 | 119.5 | C15—C20—H20 | 120.1 |
C4—C9—H9 | 119.5 | C19—C20—H20 | 120.1 |
C12—C1—C2—C3 | −1.4 (3) | C14—N1—C13—O1 | −2.3 (4) |
C1—C2—C3—C10 | 2.0 (3) | C14—N1—C13—C12 | 176.5 (2) |
C1—C2—C3—C4 | −176.2 (2) | C1—C12—C13—O1 | 123.0 (3) |
C10—C3—C4—C5 | −134.7 (3) | C11—C12—C13—O1 | −58.3 (3) |
C2—C3—C4—C5 | 43.4 (3) | C1—C12—C13—N1 | −55.8 (3) |
C10—C3—C4—C9 | 45.7 (3) | C11—C12—C13—N1 | 122.9 (2) |
C2—C3—C4—C9 | −136.2 (2) | C15—N2—C14—N1 | 179.21 (19) |
C9—C4—C5—C6 | 0.2 (4) | C15—N2—C14—S1 | 1.0 (3) |
C3—C4—C5—C6 | −179.4 (2) | C13—N1—C14—N2 | 4.0 (3) |
C4—C5—C6—C7 | 0.4 (4) | C13—N1—C14—S1 | −177.63 (18) |
C5—C6—C7—C8 | −1.0 (4) | C14—N2—C15—C20 | 63.7 (3) |
C6—C7—C8—C9 | 1.0 (5) | C14—N2—C15—C16 | −117.2 (3) |
C7—C8—C9—C4 | −0.4 (4) | C20—C15—C16—C17 | −0.4 (4) |
C5—C4—C9—C8 | −0.2 (4) | N2—C15—C16—C17 | −179.5 (2) |
C3—C4—C9—C8 | 179.4 (2) | C15—C16—C17—C18 | −0.5 (4) |
C2—C3—C10—C11 | −0.8 (4) | C16—C17—C18—C19 | 0.3 (4) |
C4—C3—C10—C11 | 177.3 (2) | C16—C17—C18—Cl1 | 178.19 (19) |
C3—C10—C11—C12 | −0.9 (4) | C17—C18—C19—C20 | 0.7 (4) |
C2—C1—C12—C11 | −0.4 (3) | Cl1—C18—C19—C20 | −177.18 (19) |
C2—C1—C12—C13 | 178.3 (2) | C16—C15—C20—C19 | 1.4 (4) |
C10—C11—C12—C1 | 1.6 (3) | N2—C15—C20—C19 | −179.5 (2) |
C10—C11—C12—C13 | −177.2 (2) | C18—C19—C20—C15 | −1.6 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O1 | 0.86 | 2.00 | 2.683 (3) | 135 |
N1—H1···S1i | 0.86 | 2.55 | 3.362 (3) | 157 |
N2—H2···O1ii | 0.86 | 2.58 | 3.210 (3) | 131 |
C1—H1A···Cg3ii | 0.93 | 2.98 | 3.586 (3) | 124 |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) −x+2, y, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C20H15ClN2OS |
Mr | 366.85 |
Crystal system, space group | Monoclinic, P2/c |
Temperature (K) | 298 |
a, b, c (Å) | 16.039 (7), 6.087 (3), 18.096 (8) |
β (°) | 94.780 (8) |
V (Å3) | 1760.5 (14) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.35 |
Crystal size (mm) | 0.49 × 0.46 × 0.10 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2000) |
Tmin, Tmax | 0.848, 0.966 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9371, 3475, 2278 |
Rint | 0.037 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.122, 1.02 |
No. of reflections | 3475 |
No. of parameters | 226 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.28, −0.22 |
Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SAINT, SHELXS97 (Sheldrick, 1997a), SHELXL97 (Sheldrick, 1997a), SHELXTL (Sheldrick, 1997b), SHELXTL, PARST (Nardelli, 1995) and PLATON (Spek, 2003).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O1 | 0.86 | 2.00 | 2.683 (3) | 135 |
N1—H1···S1i | 0.86 | 2.55 | 3.362 (3) | 157 |
N2—H2···O1ii | 0.86 | 2.58 | 3.210 (3) | 131 |
C1—H1A···Cg3ii | 0.93 | 2.98 | 3.586 (3) | 124 |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) −x+2, y, −z+1/2. |
Acknowledgements
The authors thank the Ministry of Higher Education for research grant No. UKM-ST-01-FRGS-0003-2006, and the Universiti Kebangsaan Malaysia and the Universiti Malaysia Sarawak for the facilities and scholarship to MAMA.
References
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The title compound (Fig. 1) is an isomeric analog of the previously reported N-(biphenyl-4-carbonyl)-N'-(2-chlorophenyl) thiourea (II) (Arif and Yamin, 2007). The dihedral angle between the two benzene rings in the biphenyl fragment is 44.23 (12)°, which is double the value of 20.71 (17)° in (II). The examination on the planarity of the central thiourea fragment S1/N1/N2/C14 and the chlorophenyl plane (C15—C20)/Cl1, indicates that they are planar. The central thiourea fragment makes dihedral angles with the benzene carbonyl and chlorobenzene rings of 55.96 (9) and 64.09 (9)°, respectively. The trans-cis geometry in the thiourea moiety is stabilized by the N2—H2···O1 intramolecular hydrogen bond (Table 1).
In the crystal structure symmetry related molecules are linked by N1—H1···S1i and N2—H2···O1ii intermolecular hydrogen bonds to form one-dimensional chains along the c axis (Fig. 2 and Table 1). The molecule is also stabilized by a C1—H1A···π interaction; the distance between H1A and the (C15—C20) ring centroid is 2.98 Å, and the angle about the hydrogen atom is 124°.