organic compounds
N′-(4-Chlorobenzylidene)-2-[4-(methylsulfanyl)phenyl]acetohydrazide
aX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia, and bDepartment of Chemistry, Mangalore University, Mangalagangothri 574 199, Mangalore, Karnataka, India
*Correspondence e-mail: hkfun@usm.my
In the title compound, C16H15ClN2OS, the hydrazine group is twisted slightly: the C—N—N—C torsion angle is 175.46 (13)°. The dihedral angle between the two terminal aromatic rings is 87.01 (8)°. In the crystal, inversion dimers linked by pairs of N—H⋯O hydrogen bonds generate R22(8) loops. The dimers are further linked by weak C—H⋯π interactions.
Related literature
For further details of aroylhydrozones, see: Li & Qu (2011); Zhang (2011); Fan et al. (2010). Ajani et al. (2010); Avaji et al. (2009); Rasras et al. (2010). 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, 2009); cell SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supporting information
10.1107/S1600536811039857/hb6422sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811039857/hb6422Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811039857/hb6422Isup3.cml
An equimolar mixture of 2-(4-methylsulfanylphenyl)acetohydrazide and 4-chlorobenzaldehyde was refluxed for four hours in the presence of few drops of acid catalyst and ethanol as solvent.The compound obtained was filtered, washed, dried and recrystalised from ethanol to yield colourless plates.
All hydrogen atoms were positioned geometrically [N–H = 0.9458 Å and C–H = 0.93–0.97 Å] and were refined using a riding model, with Uiso(H) = 1.2 or 1.5 Ueq(C). A rotating group model was applied to the methyl groups.
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).C16H15ClN2OS | F(000) = 664 |
Mr = 318.81 | Dx = 1.341 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 4828 reflections |
a = 17.0923 (13) Å | θ = 3.0–29.5° |
b = 9.6719 (7) Å | µ = 0.37 mm−1 |
c = 9.5592 (7) Å | T = 296 K |
β = 92.399 (1)° | Plate, colourless |
V = 1578.9 (2) Å3 | 0.91 × 0.49 × 0.09 mm |
Z = 4 |
Bruker APEXII DUO CCD diffractometer | 4748 independent reflections |
Radiation source: fine-focus sealed tube | 3306 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.025 |
ϕ and ω scans | θmax = 30.3°, θmin = 2.4° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −24→24 |
Tmin = 0.728, Tmax = 0.967 | k = −13→13 |
17083 measured reflections | l = −9→13 |
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)] = 0.041 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.122 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0504P)2 + 0.3224P] where P = (Fo2 + 2Fc2)/3 |
4748 reflections | (Δ/σ)max < 0.001 |
191 parameters | Δρmax = 0.41 e Å−3 |
0 restraints | Δρmin = −0.41 e Å−3 |
C16H15ClN2OS | V = 1578.9 (2) Å3 |
Mr = 318.81 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 17.0923 (13) Å | µ = 0.37 mm−1 |
b = 9.6719 (7) Å | T = 296 K |
c = 9.5592 (7) Å | 0.91 × 0.49 × 0.09 mm |
β = 92.399 (1)° |
Bruker APEXII DUO CCD diffractometer | 4748 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 3306 reflections with I > 2σ(I) |
Tmin = 0.728, Tmax = 0.967 | Rint = 0.025 |
17083 measured reflections |
R[F2 > 2σ(F2)] = 0.041 | 0 restraints |
wR(F2) = 0.122 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.41 e Å−3 |
4748 reflections | Δρmin = −0.41 e Å−3 |
191 parameters |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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 | 0.89531 (3) | 0.48335 (6) | 0.00009 (6) | 0.0873 (2) | |
S1 | 0.08573 (3) | 0.40633 (6) | 0.47773 (6) | 0.07612 (17) | |
O1 | 0.42041 (6) | 0.12422 (11) | 0.50622 (11) | 0.0523 (3) | |
N1 | 0.57757 (7) | 0.23664 (12) | 0.31358 (13) | 0.0471 (3) | |
N2 | 0.52912 (7) | 0.15328 (13) | 0.38944 (14) | 0.0509 (3) | |
H1N2 | 0.5458 | 0.0642 | 0.4186 | 0.061* | |
C1 | 0.68893 (8) | 0.38659 (15) | 0.15181 (15) | 0.0457 (3) | |
H1A | 0.6393 | 0.4255 | 0.1543 | 0.055* | |
C2 | 0.74751 (9) | 0.45572 (16) | 0.08466 (16) | 0.0525 (3) | |
H2A | 0.7375 | 0.5404 | 0.0414 | 0.063* | |
C3 | 0.82114 (8) | 0.39671 (17) | 0.08305 (17) | 0.0534 (4) | |
C4 | 0.83721 (9) | 0.27056 (18) | 0.14429 (18) | 0.0574 (4) | |
H4A | 0.8869 | 0.2318 | 0.1409 | 0.069* | |
C5 | 0.77820 (8) | 0.20250 (16) | 0.21090 (17) | 0.0509 (3) | |
H5A | 0.7885 | 0.1174 | 0.2531 | 0.061* | |
C6 | 0.70357 (7) | 0.25944 (14) | 0.21570 (14) | 0.0409 (3) | |
C7 | 0.64405 (8) | 0.18409 (14) | 0.29029 (15) | 0.0448 (3) | |
H7A | 0.6551 | 0.0949 | 0.3217 | 0.054* | |
C8 | 0.45912 (7) | 0.19818 (14) | 0.43038 (15) | 0.0429 (3) | |
C9 | 0.43186 (8) | 0.33897 (16) | 0.37856 (19) | 0.0542 (4) | |
H9A | 0.4615 | 0.4101 | 0.4289 | 0.065* | |
H9B | 0.4423 | 0.3476 | 0.2800 | 0.065* | |
C10 | 0.34576 (8) | 0.36138 (14) | 0.39812 (16) | 0.0468 (3) | |
C11 | 0.29124 (9) | 0.30706 (16) | 0.30280 (18) | 0.0566 (4) | |
H11A | 0.3085 | 0.2621 | 0.2238 | 0.068* | |
C12 | 0.21138 (9) | 0.31748 (17) | 0.32120 (19) | 0.0570 (4) | |
H12A | 0.1759 | 0.2789 | 0.2559 | 0.068* | |
C13 | 0.18467 (8) | 0.38616 (16) | 0.43821 (17) | 0.0508 (3) | |
C14 | 0.23916 (9) | 0.44558 (18) | 0.53125 (16) | 0.0557 (4) | |
H14A | 0.2221 | 0.4946 | 0.6079 | 0.067* | |
C15 | 0.31841 (9) | 0.43303 (17) | 0.51179 (16) | 0.0527 (3) | |
H15A | 0.3540 | 0.4732 | 0.5759 | 0.063* | |
C16 | 0.03229 (11) | 0.3267 (3) | 0.3351 (3) | 0.0869 (6) | |
H16A | −0.0227 | 0.3311 | 0.3511 | 0.130* | |
H16B | 0.0480 | 0.2318 | 0.3277 | 0.130* | |
H16C | 0.0428 | 0.3744 | 0.2499 | 0.130* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0641 (3) | 0.1044 (4) | 0.0953 (4) | −0.0326 (3) | 0.0244 (3) | 0.0087 (3) |
S1 | 0.0464 (2) | 0.0932 (4) | 0.0895 (4) | 0.0137 (2) | 0.0113 (2) | −0.0114 (3) |
O1 | 0.0428 (5) | 0.0508 (6) | 0.0643 (7) | −0.0037 (4) | 0.0130 (5) | 0.0114 (5) |
N1 | 0.0419 (6) | 0.0468 (6) | 0.0534 (7) | −0.0020 (5) | 0.0129 (5) | 0.0063 (5) |
N2 | 0.0442 (6) | 0.0456 (6) | 0.0642 (8) | 0.0015 (5) | 0.0160 (5) | 0.0132 (6) |
C1 | 0.0417 (6) | 0.0492 (8) | 0.0466 (7) | 0.0028 (5) | 0.0053 (5) | 0.0008 (6) |
C2 | 0.0561 (8) | 0.0507 (8) | 0.0511 (8) | −0.0055 (7) | 0.0068 (6) | 0.0041 (6) |
C3 | 0.0450 (7) | 0.0645 (9) | 0.0513 (8) | −0.0145 (7) | 0.0091 (6) | −0.0050 (7) |
C4 | 0.0384 (7) | 0.0679 (10) | 0.0665 (10) | 0.0024 (7) | 0.0094 (6) | −0.0055 (8) |
C5 | 0.0453 (7) | 0.0493 (8) | 0.0587 (9) | 0.0054 (6) | 0.0099 (6) | 0.0006 (7) |
C6 | 0.0396 (6) | 0.0431 (7) | 0.0402 (7) | −0.0001 (5) | 0.0061 (5) | −0.0034 (5) |
C7 | 0.0445 (7) | 0.0419 (7) | 0.0486 (8) | 0.0006 (5) | 0.0076 (6) | 0.0021 (6) |
C8 | 0.0384 (6) | 0.0435 (7) | 0.0472 (7) | −0.0051 (5) | 0.0064 (5) | 0.0006 (6) |
C9 | 0.0457 (7) | 0.0458 (8) | 0.0722 (10) | −0.0010 (6) | 0.0166 (7) | 0.0080 (7) |
C10 | 0.0454 (7) | 0.0394 (7) | 0.0563 (8) | 0.0023 (5) | 0.0108 (6) | 0.0070 (6) |
C11 | 0.0557 (8) | 0.0532 (8) | 0.0619 (10) | 0.0023 (7) | 0.0143 (7) | −0.0126 (7) |
C12 | 0.0505 (8) | 0.0545 (9) | 0.0659 (10) | 0.0017 (7) | 0.0031 (7) | −0.0119 (7) |
C13 | 0.0457 (7) | 0.0502 (8) | 0.0569 (9) | 0.0093 (6) | 0.0067 (6) | 0.0044 (7) |
C14 | 0.0541 (8) | 0.0666 (10) | 0.0468 (8) | 0.0132 (7) | 0.0065 (6) | −0.0047 (7) |
C15 | 0.0504 (8) | 0.0575 (9) | 0.0501 (8) | 0.0046 (6) | 0.0007 (6) | −0.0003 (7) |
C16 | 0.0516 (10) | 0.1089 (18) | 0.0998 (16) | −0.0040 (10) | −0.0003 (10) | −0.0019 (13) |
Cl1—C3 | 1.7386 (15) | C7—H7A | 0.9300 |
S1—C13 | 1.7590 (15) | C8—C9 | 1.516 (2) |
S1—C16 | 1.783 (2) | C9—C10 | 1.5069 (19) |
O1—C8 | 1.2310 (16) | C9—H9A | 0.9700 |
N1—C7 | 1.2728 (17) | C9—H9B | 0.9700 |
N1—N2 | 1.3828 (15) | C10—C11 | 1.380 (2) |
N2—C8 | 1.3462 (17) | C10—C15 | 1.386 (2) |
N2—H1N2 | 0.9458 | C11—C12 | 1.387 (2) |
C1—C2 | 1.3840 (19) | C11—H11A | 0.9300 |
C1—C6 | 1.391 (2) | C12—C13 | 1.394 (2) |
C1—H1A | 0.9300 | C12—H12A | 0.9300 |
C2—C3 | 1.383 (2) | C13—C14 | 1.385 (2) |
C2—H2A | 0.9300 | C14—C15 | 1.380 (2) |
C3—C4 | 1.376 (2) | C14—H14A | 0.9300 |
C4—C5 | 1.382 (2) | C15—H15A | 0.9300 |
C4—H4A | 0.9300 | C16—H16A | 0.9600 |
C5—C6 | 1.3920 (18) | C16—H16B | 0.9600 |
C5—H5A | 0.9300 | C16—H16C | 0.9600 |
C6—C7 | 1.4612 (18) | ||
C13—S1—C16 | 104.73 (9) | C10—C9—H9A | 109.2 |
C7—N1—N2 | 114.68 (12) | C8—C9—H9A | 109.2 |
C8—N2—N1 | 121.57 (12) | C10—C9—H9B | 109.2 |
C8—N2—H1N2 | 117.9 | C8—C9—H9B | 109.2 |
N1—N2—H1N2 | 120.4 | H9A—C9—H9B | 107.9 |
C2—C1—C6 | 120.69 (13) | C11—C10—C15 | 117.86 (13) |
C2—C1—H1A | 119.7 | C11—C10—C9 | 119.97 (14) |
C6—C1—H1A | 119.7 | C15—C10—C9 | 122.16 (14) |
C3—C2—C1 | 118.83 (14) | C10—C11—C12 | 121.98 (14) |
C3—C2—H2A | 120.6 | C10—C11—H11A | 119.0 |
C1—C2—H2A | 120.6 | C12—C11—H11A | 119.0 |
C4—C3—C2 | 121.80 (14) | C11—C12—C13 | 119.56 (15) |
C4—C3—Cl1 | 119.02 (12) | C11—C12—H12A | 120.2 |
C2—C3—Cl1 | 119.18 (13) | C13—C12—H12A | 120.2 |
C3—C4—C5 | 118.81 (14) | C14—C13—C12 | 118.61 (14) |
C3—C4—H4A | 120.6 | C14—C13—S1 | 116.28 (12) |
C5—C4—H4A | 120.6 | C12—C13—S1 | 125.11 (13) |
C4—C5—C6 | 120.94 (14) | C15—C14—C13 | 120.94 (14) |
C4—C5—H5A | 119.5 | C15—C14—H14A | 119.5 |
C6—C5—H5A | 119.5 | C13—C14—H14A | 119.5 |
C1—C6—C5 | 118.92 (13) | C14—C15—C10 | 120.97 (15) |
C1—C6—C7 | 122.62 (12) | C14—C15—H15A | 119.5 |
C5—C6—C7 | 118.45 (13) | C10—C15—H15A | 119.5 |
N1—C7—C6 | 122.07 (13) | S1—C16—H16A | 109.5 |
N1—C7—H7A | 119.0 | S1—C16—H16B | 109.5 |
C6—C7—H7A | 119.0 | H16A—C16—H16B | 109.5 |
O1—C8—N2 | 119.34 (13) | S1—C16—H16C | 109.5 |
O1—C8—C9 | 123.30 (12) | H16A—C16—H16C | 109.5 |
N2—C8—C9 | 117.36 (12) | H16B—C16—H16C | 109.5 |
C10—C9—C8 | 112.16 (11) | ||
C7—N1—N2—C8 | 175.46 (13) | O1—C8—C9—C10 | −14.8 (2) |
C6—C1—C2—C3 | −0.5 (2) | N2—C8—C9—C10 | 164.74 (14) |
C1—C2—C3—C4 | 1.1 (2) | C8—C9—C10—C11 | −81.06 (19) |
C1—C2—C3—Cl1 | −179.53 (11) | C8—C9—C10—C15 | 97.43 (17) |
C2—C3—C4—C5 | −1.0 (2) | C15—C10—C11—C12 | −2.7 (2) |
Cl1—C3—C4—C5 | 179.58 (12) | C9—C10—C11—C12 | 175.83 (15) |
C3—C4—C5—C6 | 0.4 (2) | C10—C11—C12—C13 | 0.8 (3) |
C2—C1—C6—C5 | −0.1 (2) | C11—C12—C13—C14 | 1.7 (2) |
C2—C1—C6—C7 | 178.68 (14) | C11—C12—C13—S1 | −179.14 (13) |
C4—C5—C6—C1 | 0.1 (2) | C16—S1—C13—C14 | 177.21 (14) |
C4—C5—C6—C7 | −178.68 (14) | C16—S1—C13—C12 | −1.93 (18) |
N2—N1—C7—C6 | −177.96 (12) | C12—C13—C14—C15 | −2.3 (2) |
C1—C6—C7—N1 | −7.3 (2) | S1—C13—C14—C15 | 178.46 (13) |
C5—C6—C7—N1 | 171.47 (14) | C13—C14—C15—C10 | 0.4 (2) |
N1—N2—C8—O1 | −174.81 (13) | C11—C10—C15—C14 | 2.1 (2) |
N1—N2—C8—C9 | 5.6 (2) | C9—C10—C15—C14 | −176.42 (14) |
Cg1 and Cg2 are the centroids of the C1–C6 and C10–C15 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H1N2···O1i | 0.95 | 2.03 | 2.9784 (17) | 176 |
C14—H14A···Cg1ii | 0.93 | 2.89 | 3.7627 (17) | 156 |
C5—H5A···Cg2iii | 0.93 | 2.98 | 3.4638 (17) | 114 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) −x+1, −y+1, −z+1; (iii) −x+1, y−1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C16H15ClN2OS |
Mr | 318.81 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 296 |
a, b, c (Å) | 17.0923 (13), 9.6719 (7), 9.5592 (7) |
β (°) | 92.399 (1) |
V (Å3) | 1578.9 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.37 |
Crystal size (mm) | 0.91 × 0.49 × 0.09 |
Data collection | |
Diffractometer | Bruker APEXII DUO CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2009) |
Tmin, Tmax | 0.728, 0.967 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 17083, 4748, 3306 |
Rint | 0.025 |
(sin θ/λ)max (Å−1) | 0.711 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.122, 1.04 |
No. of reflections | 4748 |
No. of parameters | 191 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.41, −0.41 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
Cg1 and Cg2 are the centroids of the C1–C6 and C10–C15 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H1N2···O1i | 0.95 | 2.03 | 2.9784 (17) | 176 |
C14—H14A···Cg1ii | 0.93 | 2.89 | 3.7627 (17) | 156 |
C5—H5A···Cg2iii | 0.93 | 2.98 | 3.4638 (17) | 114 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) −x+1, −y+1, −z+1; (iii) −x+1, y−1/2, −z+1/2. |
Footnotes
‡Thomson Reuters ResearcherID: A-3561-2009.
Acknowledgements
HKF and MH thank the Malaysian Government and Universiti Sains Malaysia for the Research University Grant No. 1001/PFIZIK/811160. MH also thanks Universiti Sains Malaysia for a post-doctoral research fellowship.
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.
Large number of aroylhydrozones have been synthesized in the recent years (Li & Qu, 2011; Zhang, 2011; Fan et al., 2010) which can serve as intermediates in synthesizing biologically active compounds (Ajani et al., 2010; Avaji et al., 2009; Rasras et al., 2010).
The asymmetric unit of the title compound is shown in Fig. 1. The hydrazine group is twisted slightly, with C7-N1-N2-C8, N1-N2-C8-C9 and N2-N1-C7-C6 torsion angles of 175.46 (13)°, 5.6 (2)° and -177.96 (12)°, respectively. The dihedral angle between the two terminal (C1–C6/C10–C15) phenyl rings is 87.01 (8)°.
In the crystal structure, (Fig. 2), centrosymmetrically related molecules are linked into dimers via pairs of intermolecular N2—H1N2···O1 (Table 1) hydrogen bonds, generating R22(8) ring motifs (Bernstein et al., 1995). The crystal structure is further stabilized by C—H···π interactions involving the centroids of the C1–C6 (Cg1) and C10–C15 (Cg2) rings.