organic compounds
(2E)-2-[(3-Methyl-5-phenoxy-1-phenyl-1H-pyrazol-4-yl)methylidene]hydrazinecarbothioamide
aX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia, and bDepartment of Studies in Chemistry, Mangalore University, Mangalagangotri, Mangalore 574 199, India
*Correspondence e-mail: hkfun@usm.my
In the title compound, C18H17N5OS, the mean plane of the pyrazole ring [maximum deviation = 0.0031 (12) Å] forms dihedral angles of 19.6 (4) and 9.3 (5)° with the two disorder components of the N-bound benzene ring (with equal occupancies for the two orientations) and a dihedral angle of 72.58 (8)° with the C—O-bonded benzene ring. The molecule exists in a trans conformation with respect to the N=C bond [1.2792 (19) Å]. The molecular structure features an intramolecular C—H⋯O hydrogen bond, forming an S(6) ring. In the crystal, N—H⋯N and N—H⋯S hydrogen bonds result in the formation of zigzag layers lying parallel to (10-1).
Related literature
For general background to and applications of the pyrazole derivatives, see: Rai et al. (2008); Isloor et al. (2009); Girisha et al. (2010). For standard bond-length data, see: Allen et al. (1987). For the stability of the temperature controller used in the data collection, see Cosier & Glazer (1986). For hydrogen-bond motifs, see: Bernstein et al. (1995). For related structures, see: Fun et al. (2011a,b,c).
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
https://doi.org/10.1107/S1600536812026931/hb6849sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536812026931/hb6849Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536812026931/hb6849Isup3.cml
The title compound was obtained by refluxing a mixture 3-methyl-5-phenoxy-1-phenyl-1H-pyrazole-4-carbaldehyde (0.01 mol), thiosemicarbazide (0.01 mol) in ethanol (30 ml) and 3 drops of concentrated sulfuric acid for 1 h. Excess ethanol was removed from the reaction mixture under reduced pressure. The solid product obtained was filtered, washed with ethanol and dried. Pink blocks were obtained by the slow evaporation of an ethanol-N,N-dimethylformamide (DMF) (3:1) solution.
The N-bound hydrogen atoms were located in a difference Fourier map and refined freely [N–H = 0.81 (2)-0.89 (2) Å]. The rest of hydrogen atoms were positioned geometrically and refined using a riding model with C–H = 0.95 or 0.98 Å and Uiso(H) = 1.2 or 1.5 Ueq(C). A rotating-group model was applied for the methyl group. One of the benzene rings (C12-C17) is disordered over two positions with equal refined site-occupancies [0.50 (2) and 0.50 (2)]. Similarity and rigid-bond restraints were applied to the disordered atoms.
Pyrazoles possess a wide variety of applications in the agrochemical and pharmaceutical industries including antibacterial (Rai et al., 2008), anti-inflammatory and analgesic (Isloor et al., 2009) activities. In view of these observations and in continuation of our search for biologically active pyrazole derivatives, we herein report the
of 3-methyl-5-phenoxy-1-phenyl-1H-pyrazole-4-carbaldehyde. Reaction of 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde with phenol afforded 5-chloro-3-methyl-1- phenyl-1H-pyrazole-4-carbaldehyde (Girisha et al., 2010).In the title molecule, Fig. 1, the mean plane of pyrazole ring (N4/N5/C3-C5, maximum deviation = 0.0031 (12) Å at atom N4) forms dihedral angles of 19.6 (4), 9.3 (5) and 72.58 (8)° with the three benzene rings (C12-C17, C12X-C17X and C6-C11). One of the benzene rings (C12-C17) is disordered over two positions with equal refined site-occupancies [0.50 (2) and 0.50 (2)]. The title molecule exists in a
conformation with respect to the N3//dbC2 bond [1.2792 (19) Å]. Bond lengths (Allen et al., 1987) and angles are within normal ranges and are comparable to related structures (Fun et al., 2011a, 2011b, 2011c). The molecular structure is stabilized by intramolecular C13–H13A···O1 and C13–H13B···O1 hydrogen bonds (Table 1), which generate S(6) ring motifs (Fig. 2, Bernstein et al., 1995).In the crystal (Fig.2), intermolecular N1–H1N1···N5 and N2–H1N2···S1 hydrogen bonds (Table 1) result in the formation of zigzag layers parallel to (101).
For general background to and applications of the pyrazole derivatives, see: Rai et al. (2008); Isloor et al. (2009); Girisha et al. (2010). For standard bond-length data, see: Allen et al. (1987). For the stability of the temperature controller used in the data collection, see Cosier & Glazer (1986). For hydrogen-bond motifs, see: Bernstein et al. (1995). For related structures, see: Fun et al. (2011a,b,c).
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).C18H17N5OS | F(000) = 736 |
Mr = 351.43 | Dx = 1.378 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 5058 reflections |
a = 8.8280 (1) Å | θ = 2.3–32.4° |
b = 10.8519 (2) Å | µ = 0.21 mm−1 |
c = 17.7353 (2) Å | T = 100 K |
β = 94.379 (1)° | Block, pink |
V = 1694.09 (4) Å3 | 0.29 × 0.27 × 0.22 mm |
Z = 4 |
Bruker SMART APEXII CCD diffractometer | 4948 independent reflections |
Radiation source: fine-focus sealed tube | 3879 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.042 |
φ and ω scans | θmax = 30.0°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −12→12 |
Tmin = 0.942, Tmax = 0.955 | k = −15→15 |
18467 measured reflections | l = −22→24 |
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)] = 0.046 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.113 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0482P)2 + 0.7836P] where P = (Fo2 + 2Fc2)/3 |
4948 reflections | (Δ/σ)max = 0.001 |
294 parameters | Δρmax = 0.43 e Å−3 |
216 restraints | Δρmin = −0.26 e Å−3 |
C18H17N5OS | V = 1694.09 (4) Å3 |
Mr = 351.43 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 8.8280 (1) Å | µ = 0.21 mm−1 |
b = 10.8519 (2) Å | T = 100 K |
c = 17.7353 (2) Å | 0.29 × 0.27 × 0.22 mm |
β = 94.379 (1)° |
Bruker SMART APEXII CCD diffractometer | 4948 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 3879 reflections with I > 2σ(I) |
Tmin = 0.942, Tmax = 0.955 | Rint = 0.042 |
18467 measured reflections |
R[F2 > 2σ(F2)] = 0.046 | 216 restraints |
wR(F2) = 0.113 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | Δρmax = 0.43 e Å−3 |
4948 reflections | Δρmin = −0.26 e Å−3 |
294 parameters |
Experimental. The crystal was placed in the cold stream of an Oxford Cryosystems Cobra open-flow nitrogen cryostat (Cosier & Glazer, 1986) operating at 100.0 (1) K. |
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. |
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 > 2sigma(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 | 1.02274 (4) | 0.97510 (4) | 1.12626 (2) | 0.01906 (10) | |
O1 | 0.32416 (12) | 0.80260 (10) | 1.01785 (6) | 0.0171 (2) | |
N1 | 0.75067 (17) | 0.87882 (14) | 1.14880 (8) | 0.0208 (3) | |
N2 | 0.78833 (15) | 0.93939 (12) | 1.02818 (7) | 0.0168 (3) | |
N3 | 0.64788 (14) | 0.89082 (12) | 1.00657 (7) | 0.0169 (3) | |
N4 | 0.24554 (14) | 0.73854 (11) | 0.89336 (7) | 0.0153 (2) | |
N5 | 0.29680 (15) | 0.73976 (12) | 0.82182 (7) | 0.0182 (3) | |
C1 | 0.84379 (17) | 0.92800 (13) | 1.10068 (8) | 0.0160 (3) | |
C2 | 0.61467 (17) | 0.88237 (14) | 0.93528 (9) | 0.0179 (3) | |
H2A | 0.6840 | 0.9127 | 0.9013 | 0.022* | |
C3 | 0.47312 (17) | 0.82734 (14) | 0.90555 (8) | 0.0163 (3) | |
C4 | 0.35025 (17) | 0.78988 (13) | 0.94386 (8) | 0.0151 (3) | |
C5 | 0.43228 (18) | 0.79306 (14) | 0.82963 (8) | 0.0183 (3) | |
C6 | 0.40260 (17) | 0.72594 (14) | 1.07080 (8) | 0.0155 (3) | |
C7 | 0.50846 (17) | 0.63938 (14) | 1.05158 (8) | 0.0167 (3) | |
H7A | 0.5306 | 0.6288 | 1.0004 | 0.020* | |
C8 | 0.58163 (19) | 0.56845 (15) | 1.10841 (9) | 0.0207 (3) | |
H8A | 0.6548 | 0.5090 | 1.0961 | 0.025* | |
C9 | 0.5488 (2) | 0.58360 (16) | 1.18318 (9) | 0.0250 (4) | |
H9A | 0.5994 | 0.5350 | 1.2219 | 0.030* | |
C10 | 0.4411 (2) | 0.67053 (17) | 1.20104 (9) | 0.0269 (4) | |
H10A | 0.4180 | 0.6807 | 1.2521 | 0.032* | |
C11 | 0.36739 (19) | 0.74238 (16) | 1.14485 (9) | 0.0219 (3) | |
H11A | 0.2941 | 0.8018 | 1.1570 | 0.026* | |
C12 | 0.1022 (18) | 0.687 (2) | 0.9077 (9) | 0.0163 (15) | 0.50 (2) |
C13 | 0.0307 (13) | 0.7157 (11) | 0.9729 (7) | 0.0168 (12) | 0.50 (2) |
H13A | 0.0743 | 0.7740 | 1.0082 | 0.020* | 0.50 (2) |
C14 | −0.1050 (15) | 0.6578 (12) | 0.9854 (7) | 0.0217 (13) | 0.50 (2) |
H14A | −0.1526 | 0.6748 | 1.0305 | 0.026* | 0.50 (2) |
C15 | −0.1725 (12) | 0.5757 (10) | 0.9335 (7) | 0.0263 (15) | 0.50 (2) |
H15A | −0.2656 | 0.5368 | 0.9431 | 0.032* | 0.50 (2) |
C16 | −0.1035 (11) | 0.5501 (10) | 0.8673 (6) | 0.0301 (15) | 0.50 (2) |
H16A | −0.1515 | 0.4966 | 0.8304 | 0.036* | 0.50 (2) |
C17 | 0.0365 (12) | 0.6033 (10) | 0.8553 (6) | 0.0248 (15) | 0.50 (2) |
H17A | 0.0869 | 0.5825 | 0.8116 | 0.030* | 0.50 (2) |
C12X | 0.0983 (19) | 0.683 (2) | 0.9013 (9) | 0.0186 (16) | 0.50 (2) |
C13X | 0.0278 (15) | 0.6967 (13) | 0.9686 (8) | 0.0259 (17) | 0.50 (2) |
H13B | 0.0763 | 0.7409 | 1.0099 | 0.031* | 0.50 (2) |
C14X | −0.1156 (15) | 0.6440 (14) | 0.9742 (8) | 0.0276 (16) | 0.50 (2) |
H14B | −0.1636 | 0.6502 | 1.0202 | 0.033* | 0.50 (2) |
C15X | −0.1871 (12) | 0.5835 (11) | 0.9137 (7) | 0.0286 (15) | 0.50 (2) |
H15B | −0.2846 | 0.5481 | 0.9177 | 0.034* | 0.50 (2) |
C16X | −0.1171 (11) | 0.5744 (9) | 0.8473 (7) | 0.0304 (14) | 0.50 (2) |
H16B | −0.1681 | 0.5338 | 0.8052 | 0.036* | 0.50 (2) |
C17X | 0.0263 (12) | 0.6231 (11) | 0.8405 (6) | 0.0244 (15) | 0.50 (2) |
H17B | 0.0741 | 0.6150 | 0.7946 | 0.029* | 0.50 (2) |
C18 | 0.5243 (2) | 0.80836 (19) | 0.76296 (10) | 0.0300 (4) | |
H18A | 0.4574 | 0.8316 | 0.7186 | 0.045* | |
H18B | 0.5754 | 0.7305 | 0.7529 | 0.045* | |
H18C | 0.6004 | 0.8730 | 0.7736 | 0.045* | |
H2N1 | 0.669 (2) | 0.8510 (18) | 1.1330 (11) | 0.025 (5)* | |
H1N1 | 0.781 (2) | 0.8649 (19) | 1.1957 (12) | 0.030 (5)* | |
H1N2 | 0.850 (2) | 0.9640 (19) | 0.9934 (12) | 0.032 (6)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.01562 (19) | 0.0281 (2) | 0.01348 (17) | −0.00380 (15) | 0.00110 (13) | −0.00271 (14) |
O1 | 0.0174 (5) | 0.0224 (5) | 0.0119 (5) | 0.0045 (4) | 0.0031 (4) | 0.0019 (4) |
N1 | 0.0161 (7) | 0.0320 (8) | 0.0139 (6) | −0.0047 (6) | −0.0007 (5) | 0.0019 (5) |
N2 | 0.0146 (6) | 0.0214 (6) | 0.0144 (6) | −0.0043 (5) | 0.0004 (5) | 0.0009 (5) |
N3 | 0.0129 (6) | 0.0199 (6) | 0.0177 (6) | −0.0019 (5) | −0.0005 (5) | 0.0006 (5) |
N4 | 0.0130 (6) | 0.0199 (6) | 0.0133 (6) | −0.0011 (5) | 0.0022 (5) | 0.0012 (5) |
N5 | 0.0162 (6) | 0.0260 (7) | 0.0125 (6) | −0.0030 (5) | 0.0020 (5) | 0.0012 (5) |
C1 | 0.0166 (7) | 0.0167 (7) | 0.0147 (7) | 0.0011 (6) | 0.0020 (5) | −0.0023 (5) |
C2 | 0.0147 (7) | 0.0230 (7) | 0.0164 (7) | −0.0027 (6) | 0.0033 (6) | 0.0012 (6) |
C3 | 0.0150 (7) | 0.0209 (7) | 0.0129 (6) | −0.0018 (6) | −0.0002 (5) | 0.0023 (5) |
C4 | 0.0143 (7) | 0.0176 (7) | 0.0136 (6) | 0.0018 (5) | 0.0012 (5) | 0.0020 (5) |
C5 | 0.0164 (7) | 0.0234 (7) | 0.0149 (7) | −0.0034 (6) | 0.0008 (6) | 0.0021 (6) |
C6 | 0.0149 (7) | 0.0183 (7) | 0.0135 (6) | −0.0019 (5) | 0.0020 (5) | 0.0035 (5) |
C7 | 0.0165 (7) | 0.0194 (7) | 0.0148 (7) | −0.0020 (6) | 0.0039 (6) | 0.0013 (5) |
C8 | 0.0187 (8) | 0.0206 (7) | 0.0229 (8) | 0.0009 (6) | 0.0024 (6) | 0.0039 (6) |
C9 | 0.0234 (8) | 0.0315 (9) | 0.0200 (8) | 0.0017 (7) | 0.0005 (6) | 0.0102 (7) |
C10 | 0.0271 (9) | 0.0397 (10) | 0.0146 (7) | 0.0023 (7) | 0.0054 (6) | 0.0069 (7) |
C11 | 0.0204 (8) | 0.0300 (8) | 0.0160 (7) | 0.0036 (7) | 0.0062 (6) | 0.0018 (6) |
C12 | 0.011 (2) | 0.016 (2) | 0.021 (3) | −0.001 (2) | −0.003 (2) | −0.002 (2) |
C13 | 0.013 (2) | 0.013 (3) | 0.026 (2) | −0.0041 (17) | 0.0103 (18) | −0.0068 (17) |
C14 | 0.020 (2) | 0.016 (2) | 0.030 (3) | −0.0049 (17) | 0.006 (2) | −0.0092 (19) |
C15 | 0.020 (3) | 0.023 (2) | 0.038 (3) | −0.0064 (19) | 0.015 (3) | −0.009 (3) |
C16 | 0.023 (2) | 0.031 (3) | 0.038 (3) | −0.014 (2) | 0.007 (2) | −0.012 (2) |
C17 | 0.020 (2) | 0.029 (3) | 0.026 (3) | −0.004 (2) | 0.010 (2) | −0.007 (2) |
C12X | 0.011 (3) | 0.021 (3) | 0.025 (3) | −0.001 (2) | 0.008 (3) | 0.003 (2) |
C13X | 0.025 (2) | 0.024 (4) | 0.028 (3) | −0.004 (2) | −0.001 (2) | −0.003 (2) |
C14X | 0.018 (3) | 0.031 (4) | 0.035 (3) | −0.005 (2) | 0.013 (3) | −0.003 (3) |
C15X | 0.016 (2) | 0.031 (2) | 0.040 (4) | −0.0073 (18) | 0.007 (3) | −0.006 (3) |
C16X | 0.024 (2) | 0.031 (3) | 0.036 (3) | −0.006 (2) | 0.009 (2) | −0.011 (2) |
C17X | 0.017 (2) | 0.030 (3) | 0.026 (3) | −0.007 (2) | 0.004 (2) | −0.005 (2) |
C18 | 0.0265 (9) | 0.0471 (11) | 0.0170 (8) | −0.0129 (8) | 0.0061 (7) | 0.0001 (7) |
S1—C1 | 1.6892 (16) | C10—C11 | 1.388 (2) |
O1—C4 | 1.3566 (17) | C10—H10A | 0.9500 |
O1—C6 | 1.3979 (17) | C11—H11A | 0.9500 |
N1—C1 | 1.340 (2) | C12—C13 | 1.395 (9) |
N1—H2N1 | 0.81 (2) | C12—C17 | 1.395 (10) |
N1—H1N1 | 0.87 (2) | C13—C14 | 1.385 (9) |
N2—C1 | 1.3461 (19) | C13—H13A | 0.9500 |
N2—N3 | 1.3746 (18) | C14—C15 | 1.382 (8) |
N2—H1N2 | 0.89 (2) | C14—H14A | 0.9500 |
N3—C2 | 1.2792 (19) | C15—C16 | 1.393 (8) |
N4—C4 | 1.3567 (19) | C15—H15A | 0.9500 |
N4—N5 | 1.3793 (17) | C16—C17 | 1.395 (8) |
N4—C12 | 1.423 (13) | C16—H16A | 0.9500 |
N4—C12X | 1.447 (12) | C17—H17A | 0.9500 |
N5—C5 | 1.326 (2) | C12X—C17X | 1.375 (10) |
C2—C3 | 1.448 (2) | C12X—C13X | 1.395 (10) |
C2—H2A | 0.9500 | C13X—C14X | 1.400 (9) |
C3—C4 | 1.384 (2) | C13X—H13B | 0.9500 |
C3—C5 | 1.417 (2) | C14X—C15X | 1.370 (8) |
C5—C18 | 1.494 (2) | C14X—H14B | 0.9500 |
C6—C11 | 1.384 (2) | C15X—C16X | 1.375 (8) |
C6—C7 | 1.386 (2) | C15X—H15B | 0.9500 |
C7—C8 | 1.388 (2) | C16X—C17X | 1.386 (9) |
C7—H7A | 0.9500 | C16X—H16B | 0.9500 |
C8—C9 | 1.389 (2) | C17X—H17B | 0.9500 |
C8—H8A | 0.9500 | C18—H18A | 0.9800 |
C9—C10 | 1.393 (2) | C18—H18B | 0.9800 |
C9—H9A | 0.9500 | C18—H18C | 0.9800 |
C4—O1—C6 | 118.51 (11) | C6—C11—C10 | 118.82 (15) |
C1—N1—H2N1 | 119.9 (14) | C6—C11—H11A | 120.6 |
C1—N1—H1N1 | 121.4 (14) | C10—C11—H11A | 120.6 |
H2N1—N1—H1N1 | 118 (2) | C13—C12—C17 | 120.4 (9) |
C1—N2—N3 | 119.05 (13) | C13—C12—N4 | 121.8 (8) |
C1—N2—H1N2 | 119.5 (14) | C17—C12—N4 | 117.8 (9) |
N3—N2—H1N2 | 120.2 (14) | C14—C13—C12 | 118.9 (8) |
C2—N3—N2 | 115.90 (13) | C14—C13—H13A | 120.6 |
C4—N4—N5 | 110.39 (12) | C12—C13—H13A | 120.6 |
C4—N4—C12 | 127.8 (6) | C15—C14—C13 | 121.4 (8) |
N5—N4—C12 | 121.8 (5) | C15—C14—H14A | 119.3 |
C4—N4—C12X | 132.6 (6) | C13—C14—H14A | 119.3 |
N5—N4—C12X | 117.0 (6) | C14—C15—C16 | 119.7 (8) |
C12—N4—C12X | 4.8 (10) | C14—C15—H15A | 120.1 |
C5—N5—N4 | 105.35 (12) | C16—C15—H15A | 120.1 |
N1—C1—N2 | 116.66 (14) | C15—C16—C17 | 119.7 (7) |
N1—C1—S1 | 123.78 (12) | C15—C16—H16A | 120.1 |
N2—C1—S1 | 119.56 (12) | C17—C16—H16A | 120.1 |
N3—C2—C3 | 121.06 (14) | C16—C17—C12 | 119.8 (8) |
N3—C2—H2A | 119.5 | C16—C17—H17A | 120.1 |
C3—C2—H2A | 119.5 | C12—C17—H17A | 120.1 |
C4—C3—C5 | 103.72 (13) | C17X—C12X—C13X | 120.6 (10) |
C4—C3—C2 | 129.01 (14) | C17X—C12X—N4 | 119.1 (9) |
C5—C3—C2 | 127.19 (14) | C13X—C12X—N4 | 120.3 (9) |
O1—C4—N4 | 121.53 (13) | C12X—C13X—C14X | 119.0 (9) |
O1—C4—C3 | 129.96 (14) | C12X—C13X—H13B | 120.5 |
N4—C4—C3 | 108.46 (13) | C14X—C13X—H13B | 120.5 |
N5—C5—C3 | 112.08 (14) | C15X—C14X—C13X | 120.3 (9) |
N5—C5—C18 | 120.41 (14) | C15X—C14X—H14B | 119.8 |
C3—C5—C18 | 127.50 (14) | C13X—C14X—H14B | 119.8 |
C11—C6—C7 | 121.69 (14) | C14X—C15X—C16X | 119.7 (8) |
C11—C6—O1 | 115.15 (13) | C14X—C15X—H15B | 120.1 |
C7—C6—O1 | 123.15 (13) | C16X—C15X—H15B | 120.1 |
C6—C7—C8 | 118.85 (14) | C15X—C16X—C17X | 121.3 (7) |
C6—C7—H7A | 120.6 | C15X—C16X—H16B | 119.4 |
C8—C7—H7A | 120.6 | C17X—C16X—H16B | 119.4 |
C7—C8—C9 | 120.55 (15) | C12X—C17X—C16X | 119.0 (8) |
C7—C8—H8A | 119.7 | C12X—C17X—H17B | 120.5 |
C9—C8—H8A | 119.7 | C16X—C17X—H17B | 120.5 |
C8—C9—C10 | 119.56 (15) | C5—C18—H18A | 109.5 |
C8—C9—H9A | 120.2 | C5—C18—H18B | 109.5 |
C10—C9—H9A | 120.2 | H18A—C18—H18B | 109.5 |
C11—C10—C9 | 120.53 (15) | C5—C18—H18C | 109.5 |
C11—C10—H10A | 119.7 | H18A—C18—H18C | 109.5 |
C9—C10—H10A | 119.7 | H18B—C18—H18C | 109.5 |
C1—N2—N3—C2 | −166.48 (14) | C8—C9—C10—C11 | −0.4 (3) |
C4—N4—N5—C5 | −0.51 (16) | C7—C6—C11—C10 | 0.4 (2) |
C12—N4—N5—C5 | −179.7 (12) | O1—C6—C11—C10 | −179.52 (15) |
C12X—N4—N5—C5 | −179.4 (12) | C9—C10—C11—C6 | 0.1 (3) |
N3—N2—C1—N1 | −5.8 (2) | C4—N4—C12—C13 | 20 (3) |
N3—N2—C1—S1 | 174.23 (10) | N5—N4—C12—C13 | −161.4 (14) |
N2—N3—C2—C3 | 177.04 (13) | C12X—N4—C12—C13 | −164 (27) |
N3—C2—C3—C4 | 7.7 (3) | C4—N4—C12—C17 | −158.3 (11) |
N3—C2—C3—C5 | −168.53 (16) | N5—N4—C12—C17 | 21 (2) |
C6—O1—C4—N4 | 107.65 (16) | C12X—N4—C12—C17 | 18 (23) |
C6—O1—C4—C3 | −75.5 (2) | C17—C12—C13—C14 | 1 (3) |
N5—N4—C4—O1 | 178.07 (12) | N4—C12—C13—C14 | −176.7 (16) |
C12—N4—C4—O1 | −2.8 (13) | C12—C13—C14—C15 | −2 (2) |
C12X—N4—C4—O1 | −3.3 (14) | C13—C14—C15—C16 | 0.0 (18) |
N5—N4—C4—C3 | 0.62 (17) | C14—C15—C16—C17 | 2.8 (13) |
C12—N4—C4—C3 | 179.7 (13) | C15—C16—C17—C12 | −3.7 (16) |
C12X—N4—C4—C3 | 179.3 (14) | C13—C12—C17—C16 | 2 (3) |
C5—C3—C4—O1 | −177.63 (15) | N4—C12—C17—C16 | 179.6 (13) |
C2—C3—C4—O1 | 5.5 (3) | C4—N4—C12X—C17X | −171.0 (11) |
C5—C3—C4—N4 | −0.45 (16) | N5—N4—C12X—C17X | 8 (2) |
C2—C3—C4—N4 | −177.34 (15) | C12—N4—C12X—C17X | −175 (27) |
N4—N5—C5—C3 | 0.21 (17) | C4—N4—C12X—C13X | 12 (3) |
N4—N5—C5—C18 | 178.89 (15) | N5—N4—C12X—C13X | −169.3 (15) |
C4—C3—C5—N5 | 0.15 (18) | C12—N4—C12X—C13X | 8 (23) |
C2—C3—C5—N5 | 177.11 (15) | C17X—C12X—C13X—C14X | 2 (3) |
C4—C3—C5—C18 | −178.41 (16) | N4—C12X—C13X—C14X | 179.0 (16) |
C2—C3—C5—C18 | −1.5 (3) | C12X—C13X—C14X—C15X | −2 (2) |
C4—O1—C6—C11 | −178.56 (14) | C13X—C14X—C15X—C16X | 0.2 (19) |
C4—O1—C6—C7 | 1.5 (2) | C14X—C15X—C16X—C17X | 1.3 (14) |
C11—C6—C7—C8 | −0.6 (2) | C13X—C12X—C17X—C16X | −1 (3) |
O1—C6—C7—C8 | 179.31 (14) | N4—C12X—C17X—C16X | −177.6 (14) |
C6—C7—C8—C9 | 0.3 (2) | C15X—C16X—C17X—C12X | −1.0 (17) |
C7—C8—C9—C10 | 0.2 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N1···N5i | 0.87 (2) | 2.50 (2) | 3.3237 (19) | 158.1 (18) |
N2—H1N2···S1ii | 0.89 (2) | 2.56 (2) | 3.4414 (13) | 167.7 (17) |
C13—H13A···O1 | 0.95 | 2.22 | 2.814 (12) | 120 |
C13—H13B···O1 | 0.79 | 2.28 | 2.814 (12) | 125 |
Symmetry codes: (i) x+1/2, −y+3/2, z+1/2; (ii) −x+2, −y+2, −z+2. |
Experimental details
Crystal data | |
Chemical formula | C18H17N5OS |
Mr | 351.43 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 100 |
a, b, c (Å) | 8.8280 (1), 10.8519 (2), 17.7353 (2) |
β (°) | 94.379 (1) |
V (Å3) | 1694.09 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.21 |
Crystal size (mm) | 0.29 × 0.27 × 0.22 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2009) |
Tmin, Tmax | 0.942, 0.955 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 18467, 4948, 3879 |
Rint | 0.042 |
(sin θ/λ)max (Å−1) | 0.703 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.046, 0.113, 1.06 |
No. of reflections | 4948 |
No. of parameters | 294 |
No. of restraints | 216 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.43, −0.26 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N1···N5i | 0.87 (2) | 2.50 (2) | 3.3237 (19) | 158.1 (18) |
N2—H1N2···S1ii | 0.89 (2) | 2.56 (2) | 3.4414 (13) | 167.7 (17) |
C13—H13A···O1 | 0.95 | 2.22 | 2.814 (12) | 120 |
C13—H13B···O1 | 0.79 | 2.28 | 2.814 (12) | 125 |
Symmetry codes: (i) x+1/2, −y+3/2, z+1/2; (ii) −x+2, −y+2, −z+2. |
Acknowledgements
The authors thank Universiti Sains Malaysia (USM) for the Research University grant (No. 1001/PFIZIK/811160). CKQ also thanks USM for an Incentive Grant.
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.
Pyrazoles possess a wide variety of applications in the agrochemical and pharmaceutical industries including antibacterial (Rai et al., 2008), anti-inflammatory and analgesic (Isloor et al., 2009) activities. In view of these observations and in continuation of our search for biologically active pyrazole derivatives, we herein report the crystal structure of 3-methyl-5-phenoxy-1-phenyl-1H-pyrazole-4-carbaldehyde. Reaction of 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde with phenol afforded 5-chloro-3-methyl-1- phenyl-1H-pyrazole-4-carbaldehyde (Girisha et al., 2010).
In the title molecule, Fig. 1, the mean plane of pyrazole ring (N4/N5/C3-C5, maximum deviation = 0.0031 (12) Å at atom N4) forms dihedral angles of 19.6 (4), 9.3 (5) and 72.58 (8)° with the three benzene rings (C12-C17, C12X-C17X and C6-C11). One of the benzene rings (C12-C17) is disordered over two positions with equal refined site-occupancies [0.50 (2) and 0.50 (2)]. The title molecule exists in a trans conformation with respect to the N3//dbC2 bond [1.2792 (19) Å]. Bond lengths (Allen et al., 1987) and angles are within normal ranges and are comparable to related structures (Fun et al., 2011a, 2011b, 2011c). The molecular structure is stabilized by intramolecular C13–H13A···O1 and C13–H13B···O1 hydrogen bonds (Table 1), which generate S(6) ring motifs (Fig. 2, Bernstein et al., 1995).
In the crystal (Fig.2), intermolecular N1–H1N1···N5 and N2–H1N2···S1 hydrogen bonds (Table 1) result in the formation of zigzag layers parallel to (101).