organic compounds
3,5-Bis(4-methylphenyl)-1-phenyl-4,5-dihydro-1H-pyrazole
aDepartment of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA, bDepartment of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey, cDepartment of Studies in Chemistry, Mangalore University, Mangalagangotri 574 199, India, and dDepartment of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore 570 006, India
*Correspondence e-mail: akkurt@erciyes.edu.tr
In the title compound, C23H22N2, the dihedral angle between the methylbenzene groups is 77.62 (6)°, and the dihedral angle between the envelope-shaped pyrazole ring [in which one C atom displaced by 0.109 (1) Å from the mean plane of the other four atoms] and the phenyl ring is 17.57 (7)°. The dihedral angles between the phenyl ring and the two methylbenzene rings are 13.24 (6) and 81.02 (7)°. In the crystal, weak C—H⋯π interactions link the molecules.
Related literature
For related structures and background references, see: Jasinski et al. (2010); Samshuddin et al. (2010).
Experimental
Crystal data
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Refinement
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Data collection: CrysAlis PRO (Oxford Diffraction, 2007); cell CrysAlis PRO; data reduction: CrysAlis RED (Oxford Diffraction, 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); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
Supporting information
10.1107/S1600536811011494/hb5825sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811011494/hb5825Isup2.hkl
A mixture of (2E)-1,3-bis(4-methylphenyl)prop-2-en-1-one (2.36 g, 0.01 mol) and phenyl hydrazine (1.08 g, 0.01 mol) in 50 ml glacial acetic acid was refluxed for 6 h. The reaction mixture was cooled and poured into 50 ml ice-cold water. The precipitate was collected by filtration and purified by recrystallization from ethanol. Yellow needles of (I) were grown from acetonitrile by slow evaporation (m. p.: 412–414 K, yield: 78%).
All H atoms were placed in their calculated positions (methyl C—H = 0.98 Å, methylene C—H = 0.99 Å, methine C—H = 1.00 Å and aromatic C—H = 0.95 Å) and refined using a riding model. Isotropic displacement parameters for these atoms were set to 1.2 (or 1.5 for the methyl group) times the Ueq of the parent atom.
Data collection: CrysAlis PRO (Oxford Diffraction, 2007); cell
CrysAlis PRO (Oxford Diffraction, 2007); data reduction: CrysAlis RED (Oxford Diffraction, 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); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).Fig. 1. Molecular structure of the title compound showing displacement ellipsoids for non-H atoms drawn at the 50% probability level. | |
Fig. 2. Packing diagram of the title compound viewed down the a axis. |
C23H22N2 | F(000) = 696 |
Mr = 326.43 | Dx = 1.231 Mg m−3 |
Monoclinic, P21/n | Cu Kα radiation, λ = 1.54178 Å |
Hall symbol: -P 2yn | Cell parameters from 6406 reflections |
a = 5.8113 (3) Å | θ = 4.4–75.5° |
b = 10.6959 (5) Å | µ = 0.55 mm−1 |
c = 28.4455 (13) Å | T = 123 K |
β = 94.983 (4)° | Needle, yellow |
V = 1761.41 (15) Å3 | 0.53 × 0.11 × 0.07 mm |
Z = 4 |
Oxford Diffraction Xcalibur Ruby Gemini CCD diffractometer | 3615 independent reflections |
Radiation source: Enhance (Cu) X-ray Source | 3096 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.033 |
Detector resolution: 10.5081 pixels mm-1 | θmax = 75.7°, θmin = 4.4° |
ω scans | h = −7→6 |
Absorption correction: multi-scan (CrysAlis PRO;Oxford Diffraction, 2007) | k = −13→13 |
Tmin = 0.736, Tmax = 1.000 | l = −34→35 |
12872 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) = 0.119 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0644P)2 + 0.4363P] where P = (Fo2 + 2Fc2)/3 |
3615 reflections | (Δ/σ)max = 0.001 |
228 parameters | Δρmax = 0.31 e Å−3 |
0 restraints | Δρmin = −0.21 e Å−3 |
C23H22N2 | V = 1761.41 (15) Å3 |
Mr = 326.43 | Z = 4 |
Monoclinic, P21/n | Cu Kα radiation |
a = 5.8113 (3) Å | µ = 0.55 mm−1 |
b = 10.6959 (5) Å | T = 123 K |
c = 28.4455 (13) Å | 0.53 × 0.11 × 0.07 mm |
β = 94.983 (4)° |
Oxford Diffraction Xcalibur Ruby Gemini CCD diffractometer | 3615 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO;Oxford Diffraction, 2007) | 3096 reflections with I > 2σ(I) |
Tmin = 0.736, Tmax = 1.000 | Rint = 0.033 |
12872 measured reflections |
R[F2 > 2σ(F2)] = 0.043 | 0 restraints |
wR(F2) = 0.119 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.31 e Å−3 |
3615 reflections | Δρmin = −0.21 e Å−3 |
228 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 on F2 for ALL reflections except those flagged by the user for potential systematic errors. Weighted R-factors wR and all goodnesses of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The observed criterion of F2 > σ(F2) is used only for calculating -R-factor-obs 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 | ||
N1 | 0.03560 (19) | 0.23302 (10) | 0.66268 (4) | 0.0274 (3) | |
N2 | 0.24215 (19) | 0.20597 (10) | 0.68799 (4) | 0.0255 (3) | |
C1 | 0.2985 (2) | 0.29796 (11) | 0.71599 (4) | 0.0246 (3) | |
C2 | 0.1238 (2) | 0.40318 (12) | 0.71220 (4) | 0.0269 (4) | |
C3 | −0.0306 (2) | 0.36569 (12) | 0.66740 (5) | 0.0257 (3) | |
C4 | −0.0433 (2) | 0.15597 (12) | 0.62528 (4) | 0.0253 (3) | |
C5 | −0.2649 (2) | 0.17337 (14) | 0.60319 (5) | 0.0331 (4) | |
C6 | −0.3486 (3) | 0.09418 (15) | 0.56701 (5) | 0.0355 (4) | |
C7 | −0.2145 (3) | −0.00281 (14) | 0.55219 (5) | 0.0380 (5) | |
C8 | 0.0064 (3) | −0.01954 (15) | 0.57400 (5) | 0.0374 (4) | |
C9 | 0.0931 (2) | 0.05842 (13) | 0.61021 (5) | 0.0297 (4) | |
C10 | 0.5036 (2) | 0.29188 (12) | 0.74964 (4) | 0.0243 (3) | |
C11 | 0.5501 (2) | 0.38492 (12) | 0.78377 (5) | 0.0276 (4) | |
C12 | 0.7391 (2) | 0.37447 (12) | 0.81698 (5) | 0.0282 (4) | |
C13 | 0.8878 (2) | 0.27223 (12) | 0.81727 (5) | 0.0272 (4) | |
C14 | 0.8428 (2) | 0.18087 (12) | 0.78254 (5) | 0.0289 (4) | |
C15 | 0.6556 (2) | 0.18988 (12) | 0.74930 (5) | 0.0266 (4) | |
C16 | 1.0901 (3) | 0.26048 (14) | 0.85368 (5) | 0.0342 (4) | |
C17 | 0.0167 (2) | 0.44225 (12) | 0.62430 (4) | 0.0247 (3) | |
C18 | 0.2099 (2) | 0.41944 (13) | 0.59980 (5) | 0.0302 (4) | |
C19 | 0.2591 (2) | 0.49430 (14) | 0.56221 (5) | 0.0317 (4) | |
C20 | 0.1173 (3) | 0.59488 (12) | 0.54784 (5) | 0.0294 (4) | |
C21 | −0.0768 (3) | 0.61616 (12) | 0.57187 (5) | 0.0314 (4) | |
C22 | −0.1273 (2) | 0.54094 (12) | 0.60961 (5) | 0.0285 (4) | |
C23 | 0.1766 (3) | 0.67715 (14) | 0.50757 (5) | 0.0388 (4) | |
H2A | 0.19920 | 0.48500 | 0.70820 | 0.0320* | |
H2B | 0.03430 | 0.40650 | 0.74020 | 0.0320* | |
H3A | −0.19730 | 0.37210 | 0.67330 | 0.0310* | |
H5A | −0.35870 | 0.23960 | 0.61290 | 0.0400* | |
H6A | −0.49980 | 0.10670 | 0.55220 | 0.0430* | |
H7A | −0.27280 | −0.05700 | 0.52750 | 0.0460* | |
H8A | 0.09980 | −0.08560 | 0.56390 | 0.0450* | |
H9A | 0.24470 | 0.04570 | 0.62480 | 0.0360* | |
H11A | 0.45170 | 0.45570 | 0.78420 | 0.0330* | |
H12A | 0.76760 | 0.43840 | 0.83990 | 0.0340* | |
H14A | 0.94320 | 0.11100 | 0.78180 | 0.0350* | |
H15A | 0.62960 | 0.12660 | 0.72600 | 0.0320* | |
H16A | 1.04610 | 0.29080 | 0.88410 | 0.0510* | |
H16B | 1.21930 | 0.31040 | 0.84400 | 0.0510* | |
H16C | 1.13670 | 0.17260 | 0.85660 | 0.0510* | |
H18A | 0.30930 | 0.35160 | 0.60900 | 0.0360* | |
H19A | 0.39150 | 0.47680 | 0.54600 | 0.0380* | |
H21A | −0.17720 | 0.68340 | 0.56240 | 0.0380* | |
H22A | −0.26150 | 0.55730 | 0.62540 | 0.0340* | |
H23A | 0.05160 | 0.73740 | 0.50010 | 0.0580* | |
H23B | 0.19620 | 0.62540 | 0.47980 | 0.0580* | |
H23C | 0.32050 | 0.72220 | 0.51660 | 0.0580* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0281 (6) | 0.0256 (5) | 0.0276 (6) | 0.0039 (4) | −0.0019 (4) | 0.0005 (4) |
N2 | 0.0263 (5) | 0.0264 (5) | 0.0234 (5) | 0.0016 (4) | −0.0005 (4) | 0.0017 (4) |
C1 | 0.0293 (6) | 0.0236 (6) | 0.0213 (6) | 0.0016 (5) | 0.0049 (5) | 0.0019 (4) |
C2 | 0.0328 (7) | 0.0254 (6) | 0.0229 (6) | 0.0042 (5) | 0.0047 (5) | 0.0007 (5) |
C3 | 0.0249 (6) | 0.0254 (6) | 0.0270 (6) | 0.0035 (5) | 0.0043 (5) | 0.0009 (5) |
C4 | 0.0276 (6) | 0.0256 (6) | 0.0228 (6) | −0.0036 (5) | 0.0028 (5) | 0.0033 (5) |
C5 | 0.0301 (7) | 0.0363 (7) | 0.0325 (7) | 0.0025 (5) | 0.0007 (5) | 0.0029 (6) |
C6 | 0.0296 (7) | 0.0454 (8) | 0.0301 (7) | −0.0057 (6) | −0.0047 (6) | 0.0062 (6) |
C7 | 0.0461 (9) | 0.0390 (8) | 0.0277 (7) | −0.0096 (6) | −0.0038 (6) | −0.0025 (6) |
C8 | 0.0430 (8) | 0.0361 (7) | 0.0326 (7) | 0.0022 (6) | 0.0003 (6) | −0.0061 (6) |
C9 | 0.0286 (7) | 0.0318 (7) | 0.0282 (7) | 0.0003 (5) | −0.0002 (5) | −0.0008 (5) |
C10 | 0.0283 (6) | 0.0243 (6) | 0.0206 (6) | −0.0009 (5) | 0.0036 (5) | 0.0032 (5) |
C11 | 0.0341 (7) | 0.0242 (6) | 0.0247 (6) | 0.0025 (5) | 0.0040 (5) | 0.0012 (5) |
C12 | 0.0366 (7) | 0.0266 (6) | 0.0213 (6) | −0.0036 (5) | 0.0028 (5) | −0.0014 (5) |
C13 | 0.0292 (7) | 0.0286 (6) | 0.0237 (6) | −0.0043 (5) | 0.0019 (5) | 0.0050 (5) |
C14 | 0.0299 (7) | 0.0250 (6) | 0.0316 (7) | 0.0025 (5) | 0.0013 (5) | 0.0023 (5) |
C15 | 0.0315 (7) | 0.0229 (6) | 0.0252 (6) | −0.0009 (5) | 0.0020 (5) | −0.0011 (5) |
C16 | 0.0350 (7) | 0.0342 (7) | 0.0320 (7) | −0.0050 (6) | −0.0044 (6) | 0.0026 (6) |
C17 | 0.0247 (6) | 0.0267 (6) | 0.0224 (6) | 0.0011 (5) | 0.0000 (5) | −0.0009 (5) |
C18 | 0.0271 (7) | 0.0344 (7) | 0.0292 (7) | 0.0067 (5) | 0.0027 (5) | 0.0020 (5) |
C19 | 0.0290 (7) | 0.0390 (7) | 0.0277 (7) | −0.0002 (5) | 0.0060 (5) | −0.0015 (5) |
C20 | 0.0377 (7) | 0.0288 (6) | 0.0210 (6) | −0.0067 (5) | −0.0018 (5) | −0.0020 (5) |
C21 | 0.0393 (8) | 0.0260 (6) | 0.0282 (7) | 0.0052 (5) | −0.0017 (6) | 0.0008 (5) |
C22 | 0.0292 (7) | 0.0291 (6) | 0.0272 (6) | 0.0051 (5) | 0.0031 (5) | −0.0018 (5) |
C23 | 0.0546 (9) | 0.0354 (7) | 0.0264 (7) | −0.0087 (6) | 0.0034 (6) | 0.0017 (6) |
N1—N2 | 1.3758 (16) | C20—C21 | 1.388 (2) |
N1—C3 | 1.4794 (17) | C20—C23 | 1.508 (2) |
N1—C4 | 1.3916 (16) | C21—C22 | 1.393 (2) |
N2—C1 | 1.2901 (16) | C2—H2A | 0.9900 |
C1—C2 | 1.5132 (17) | C2—H2B | 0.9900 |
C1—C10 | 1.4639 (16) | C3—H3A | 1.0000 |
C2—C3 | 1.5464 (18) | C5—H5A | 0.9500 |
C3—C17 | 1.5191 (18) | C6—H6A | 0.9500 |
C4—C5 | 1.3955 (17) | C7—H7A | 0.9500 |
C4—C9 | 1.3999 (18) | C8—H8A | 0.9500 |
C5—C6 | 1.388 (2) | C9—H9A | 0.9500 |
C6—C7 | 1.385 (2) | C11—H11A | 0.9500 |
C7—C8 | 1.388 (2) | C12—H12A | 0.9500 |
C8—C9 | 1.386 (2) | C14—H14A | 0.9500 |
C10—C11 | 1.4001 (18) | C15—H15A | 0.9500 |
C10—C15 | 1.4043 (18) | C16—H16A | 0.9800 |
C11—C12 | 1.3896 (18) | C16—H16B | 0.9800 |
C12—C13 | 1.3934 (18) | C16—H16C | 0.9800 |
C13—C14 | 1.3980 (19) | C18—H18A | 0.9500 |
C13—C16 | 1.503 (2) | C19—H19A | 0.9500 |
C14—C15 | 1.3813 (18) | C21—H21A | 0.9500 |
C17—C18 | 1.3935 (17) | C22—H22A | 0.9500 |
C17—C22 | 1.3887 (18) | C23—H23A | 0.9800 |
C18—C19 | 1.385 (2) | C23—H23B | 0.9800 |
C19—C20 | 1.395 (2) | C23—H23C | 0.9800 |
N2—N1—C3 | 112.10 (10) | H2A—C2—H2B | 109.00 |
N2—N1—C4 | 119.35 (10) | N1—C3—H3A | 110.00 |
C3—N1—C4 | 124.50 (11) | C2—C3—H3A | 110.00 |
N1—N2—C1 | 109.02 (10) | C17—C3—H3A | 110.00 |
N2—C1—C2 | 112.98 (10) | C4—C5—H5A | 120.00 |
N2—C1—C10 | 121.23 (11) | C6—C5—H5A | 120.00 |
C2—C1—C10 | 125.64 (10) | C5—C6—H6A | 120.00 |
C1—C2—C3 | 101.74 (10) | C7—C6—H6A | 120.00 |
N1—C3—C2 | 100.76 (10) | C6—C7—H7A | 121.00 |
N1—C3—C17 | 112.15 (11) | C8—C7—H7A | 121.00 |
C2—C3—C17 | 113.12 (10) | C7—C8—H8A | 119.00 |
N1—C4—C5 | 119.68 (12) | C9—C8—H8A | 119.00 |
N1—C4—C9 | 121.18 (11) | C4—C9—H9A | 120.00 |
C5—C4—C9 | 119.11 (12) | C8—C9—H9A | 120.00 |
C4—C5—C6 | 120.19 (13) | C10—C11—H11A | 120.00 |
C5—C6—C7 | 120.84 (15) | C12—C11—H11A | 120.00 |
C6—C7—C8 | 118.92 (14) | C11—C12—H12A | 119.00 |
C7—C8—C9 | 121.14 (14) | C13—C12—H12A | 119.00 |
C4—C9—C8 | 119.81 (12) | C13—C14—H14A | 119.00 |
C1—C10—C11 | 121.26 (11) | C15—C14—H14A | 119.00 |
C1—C10—C15 | 120.46 (11) | C10—C15—H15A | 120.00 |
C11—C10—C15 | 118.25 (11) | C14—C15—H15A | 120.00 |
C10—C11—C12 | 120.52 (11) | C13—C16—H16A | 109.00 |
C11—C12—C13 | 121.35 (12) | C13—C16—H16B | 109.00 |
C12—C13—C14 | 117.81 (12) | C13—C16—H16C | 109.00 |
C12—C13—C16 | 121.15 (12) | H16A—C16—H16B | 109.00 |
C14—C13—C16 | 121.04 (11) | H16A—C16—H16C | 110.00 |
C13—C14—C15 | 121.52 (12) | H16B—C16—H16C | 109.00 |
C10—C15—C14 | 120.53 (12) | C17—C18—H18A | 120.00 |
C3—C17—C18 | 121.29 (11) | C19—C18—H18A | 120.00 |
C3—C17—C22 | 120.40 (11) | C18—C19—H19A | 119.00 |
C18—C17—C22 | 118.25 (12) | C20—C19—H19A | 120.00 |
C17—C18—C19 | 120.94 (12) | C20—C21—H21A | 119.00 |
C18—C19—C20 | 121.05 (12) | C22—C21—H21A | 119.00 |
C19—C20—C21 | 117.84 (13) | C17—C22—H22A | 120.00 |
C19—C20—C23 | 120.31 (14) | C21—C22—H22A | 120.00 |
C21—C20—C23 | 121.85 (13) | C20—C23—H23A | 110.00 |
C20—C21—C22 | 121.30 (13) | C20—C23—H23B | 109.00 |
C17—C22—C21 | 120.61 (12) | C20—C23—H23C | 110.00 |
C1—C2—H2A | 111.00 | H23A—C23—H23B | 109.00 |
C1—C2—H2B | 111.00 | H23A—C23—H23C | 109.00 |
C3—C2—H2A | 111.00 | H23B—C23—H23C | 109.00 |
C3—C2—H2B | 111.00 | ||
C3—N1—N2—C1 | 12.24 (14) | N1—C4—C9—C8 | 177.64 (13) |
C4—N1—N2—C1 | 170.61 (11) | C5—C4—C9—C8 | −0.4 (2) |
N2—N1—C3—C2 | −18.27 (13) | C4—C5—C6—C7 | −0.1 (2) |
N2—N1—C3—C17 | 102.32 (12) | C5—C6—C7—C8 | −0.3 (2) |
C4—N1—C3—C2 | −175.32 (11) | C6—C7—C8—C9 | 0.3 (2) |
C4—N1—C3—C17 | −54.74 (15) | C7—C8—C9—C4 | 0.0 (2) |
N2—N1—C4—C5 | 172.10 (12) | C1—C10—C11—C12 | 176.68 (12) |
N2—N1—C4—C9 | −5.93 (18) | C15—C10—C11—C12 | −1.44 (19) |
C3—N1—C4—C5 | −32.39 (18) | C1—C10—C15—C14 | −176.72 (12) |
C3—N1—C4—C9 | 149.59 (12) | C11—C10—C15—C14 | 1.41 (19) |
N1—N2—C1—C2 | 0.12 (14) | C10—C11—C12—C13 | 0.3 (2) |
N1—N2—C1—C10 | 175.95 (10) | C11—C12—C13—C14 | 0.90 (19) |
N2—C1—C2—C3 | −11.25 (13) | C11—C12—C13—C16 | −179.14 (13) |
C10—C1—C2—C3 | 173.14 (11) | C12—C13—C14—C15 | −0.93 (19) |
N2—C1—C10—C11 | −172.36 (12) | C16—C13—C14—C15 | 179.11 (13) |
N2—C1—C10—C15 | 5.72 (18) | C13—C14—C15—C10 | −0.2 (2) |
C2—C1—C10—C11 | 2.91 (18) | C3—C17—C18—C19 | −176.21 (12) |
C2—C1—C10—C15 | −179.01 (11) | C22—C17—C18—C19 | 0.94 (19) |
C1—C2—C3—N1 | 16.33 (11) | C3—C17—C22—C21 | 176.07 (12) |
C1—C2—C3—C17 | −103.56 (11) | C18—C17—C22—C21 | −1.10 (19) |
N1—C3—C17—C18 | −36.48 (16) | C17—C18—C19—C20 | 0.2 (2) |
N1—C3—C17—C22 | 146.44 (12) | C18—C19—C20—C21 | −1.1 (2) |
C2—C3—C17—C18 | 76.66 (15) | C18—C19—C20—C23 | 178.58 (13) |
C2—C3—C17—C22 | −100.43 (13) | C19—C20—C21—C22 | 1.0 (2) |
N1—C4—C5—C6 | −177.62 (13) | C23—C20—C21—C22 | −178.74 (13) |
C9—C4—C5—C6 | 0.5 (2) | C20—C21—C22—C17 | 0.2 (2) |
Cg2, Cg3 and Cg4 are the centroids of the C4–C9, C10–C15 and C17–C22 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2B···Cg3i | 0.99 | 2.74 | 3.5766 (13) | 142 |
C12—H12A···Cg2ii | 0.95 | 2.69 | 3.5485 (15) | 150 |
C16—H16C···Cg4iii | 0.98 | 2.81 | 3.6144 (17) | 140 |
C23—H23B···Cg4iv | 0.98 | 2.77 | 3.5742 (16) | 140 |
Symmetry codes: (i) x−1, y, z; (ii) −x+1/2, y+1/2, −z+3/2; (iii) −x+3/2, y−1/2, −z+3/2; (iv) −x, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C23H22N2 |
Mr | 326.43 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 123 |
a, b, c (Å) | 5.8113 (3), 10.6959 (5), 28.4455 (13) |
β (°) | 94.983 (4) |
V (Å3) | 1761.41 (15) |
Z | 4 |
Radiation type | Cu Kα |
µ (mm−1) | 0.55 |
Crystal size (mm) | 0.53 × 0.11 × 0.07 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur Ruby Gemini CCD diffractometer |
Absorption correction | Multi-scan (CrysAlis PRO;Oxford Diffraction, 2007) |
Tmin, Tmax | 0.736, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 12872, 3615, 3096 |
Rint | 0.033 |
(sin θ/λ)max (Å−1) | 0.628 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.043, 0.119, 1.03 |
No. of reflections | 3615 |
No. of parameters | 228 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.31, −0.21 |
Computer programs: CrysAlis PRO (Oxford Diffraction, 2007), CrysAlis RED (Oxford Diffraction, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
Cg2, Cg3 and Cg4 are the centroids of the C4–C9, C10–C15 and C17–C22 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2B···Cg3i | 0.99 | 2.74 | 3.5766 (13) | 142 |
C12—H12A···Cg2ii | 0.95 | 2.69 | 3.5485 (15) | 150 |
C16—H16C···Cg4iii | 0.98 | 2.81 | 3.6144 (17) | 140 |
C23—H23B···Cg4iv | 0.98 | 2.77 | 3.5742 (16) | 140 |
Symmetry codes: (i) x−1, y, z; (ii) −x+1/2, y+1/2, −z+3/2; (iii) −x+3/2, y−1/2, −z+3/2; (iv) −x, −y+1, −z+1. |
Acknowledgements
SS and BN thank Mangalore University for the research facilities and the UGC SAP for financial assistance for the purchase of chemicals. HSY thanks the UOM for sabbatical leave. RJB wishes to acknowledge the NSF–MRI program (grant CHE-0619278) for funds to purchase the diffractometer.
References
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Jasinski, J. P., Pek, A. E., Samshuddin, S., Narayana, B. & Yathirajan, H. S. (2010). Acta Cryst. E66, o1950–o1951. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Oxford Diffraction (2007). CrysAlis PRO and CrysAlis RED. Oxford Diffraction Ltd, Abingdon, England. Google Scholar
Samshuddin, S., Narayana, B., Yathirajan, H. S., Safwan, A. P. & Tiekink, E. R. T. (2010). Acta Cryst. E66, o1279–o1280. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
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 work on pyrazoline derivatives Samshuddin et al., 2010, Jasinski et al., 2010), we now describe the synthesis and structure of the title compound, (I).
The title compound (I) contains two methylbenzene groups and a phenyl ring attached to an envelope configured pyrazole ring (Fig. 1). The dihedral angle between the two methylbenzene groups is 77.62 (6)° and the dihedral angle between the pyrazole and phenyl rings is 17.57 (7)°. Also, the dihedral angles between the phenyl ring and the two methyl-substituted phenyl groups are 13.24 (6) and 81.02 (7)°, respectively. Four C–H···π interactions (Table 1) contribute to the stability of the crystal structure (Fig. 2).