Literature DB >> 21588264

3-Ethyl-4-phen-oxy-1-(2,2,2-trifluoro-eth-yl)-1H-pyrazol-5-ol.

Tara Shahani, Hoong-Kun Fun, R Venkat Ragavan, V Vijayakumar, S Sarveswari.   

Abstract

The title compound, C(13)H(13)F(3)N(2)O(2), crystallizes with two independent mol-ecules in the asymmetric unit, with different conformations of their ethyl side chains. The dihedral angles formed between the 1H-pyrazole and benzene rings in the two mol-ecules are 79.44 (6) and 77.81 (6)°. In the crystal, mol-ecules are linked by O⋯H-N hydrogen bonds into chains propagating along [001] and the packing is further stabilized by π-π inter-actions [centroid-centroid separations = 3.5409 (10) and 3.6335 (10) Å].

Entities:  

Year:  2010        PMID: 21588264      PMCID: PMC3007551          DOI: 10.1107/S1600536810025948

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For the synthesis, see: Ragavan et al. (2009 ▶, 2010 ▶). For background on the biological activity of 3-ethyl-4-phen­oxy-1-(2,2,2-trifluoro­eth­yl)-1H-pyrazol-5-ol, see: Brogden (1986 ▶); Gursoy et al. (2000 ▶); Watanabe et al. (1984 ▶); Kawai et al. (1997 ▶); Wu et al. (2002 ▶). For related structures, see: Shahani et al. (2009 ▶, 2010a ▶,b ▶,c ▶,d ▶). For hydrogen-bond motifs, see: Bernstein et al. (1995 ▶). For bond-length data, see: Allen et al. (1987 ▶). For the stability of the temperature controller used for the data collection, see: Cosier & Glazer (1986 ▶). For related literature, see: Coersmeier et al. (1986 ▶).

Experimental

Crystal data

C13H13F3N2O2 M = 286.25 Monoclinic, a = 9.3490 (18) Å b = 14.712 (3) Å c = 20.319 (4) Å β = 113.889 (8)° V = 2555.3 (9) Å3 Z = 8 Mo Kα radiation μ = 0.13 mm−1 T = 100 K 0.38 × 0.26 × 0.15 mm

Data collection

Bruker SMART APEXII CCD diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2009 ▶) T min = 0.952, T max = 0.981 35406 measured reflections 9653 independent reflections 7544 reflections with I > 2σ(I) R int = 0.034

Refinement

R[F 2 > 2σ(F 2)] = 0.046 wR(F 2) = 0.156 S = 1.07 9653 reflections 365 parameters H-atom parameters constrained Δρmax = 0.68 e Å−3 Δρmin = −0.55 e Å−3 Data collection: APEX2 (Bruker, 2009 ▶); cell refinement: 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 ▶). Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536810025948/hb5540sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536810025948/hb5540Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C13H13F3N2O2F(000) = 1184
Mr = 286.25Dx = 1.488 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 9950 reflections
a = 9.3490 (18) Åθ = 2.5–33.1°
b = 14.712 (3) ŵ = 0.13 mm1
c = 20.319 (4) ÅT = 100 K
β = 113.889 (8)°Block, colourless
V = 2555.3 (9) Å30.38 × 0.26 × 0.15 mm
Z = 8
Bruker SMART APEXII CCD diffractometer9653 independent reflections
Radiation source: fine-focus sealed tube7544 reflections with I > 2σ(I)
graphiteRint = 0.034
φ and ω scansθmax = 33.1°, θmin = 2.2°
Absorption correction: multi-scan (SADABS; Bruker, 2009)h = −14→13
Tmin = 0.952, Tmax = 0.981k = −22→22
35406 measured reflectionsl = −30→31
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.046Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.156H-atom parameters constrained
S = 1.07w = 1/[σ2(Fo2) + (0.0895P)2 + 0.5995P] where P = (Fo2 + 2Fc2)/3
9653 reflections(Δ/σ)max < 0.001
365 parametersΔρmax = 0.68 e Å3
0 restraintsΔρmin = −0.55 e Å3
Experimental. The crystal was placed in the cold stream of an Oxford Cyrosystems Cobra open-flow nitrogen cryostat (Cosier & Glazer, 1986) operating at 100.0 (1) K.
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.
xyzUiso*/Ueq
F1A0.31537 (13)0.95145 (9)0.55763 (5)0.0481 (3)
F2A0.30166 (11)1.01373 (6)0.45960 (6)0.0391 (2)
F3A0.39030 (10)0.87810 (6)0.48585 (6)0.0382 (2)
O1A−0.02252 (9)0.65761 (6)0.57549 (4)0.01824 (16)
O2A−0.02449 (11)0.86757 (6)0.54830 (5)0.01993 (16)
H1OA−0.03680.85170.58430.030*
N1A0.14431 (11)0.73591 (6)0.45565 (5)0.01659 (17)
N2A0.09635 (11)0.81452 (6)0.47642 (5)0.01577 (17)
C1A0.24276 (14)0.64218 (8)0.66821 (6)0.0199 (2)
H1AA0.28570.67220.64020.024*
C2A0.33808 (16)0.61131 (9)0.73676 (7)0.0260 (2)
H2AA0.44520.62230.75510.031*
C3A0.27568 (18)0.56449 (9)0.77815 (7)0.0292 (3)
H3AA0.34050.54380.82380.035*
C4A0.11638 (18)0.54869 (9)0.75105 (7)0.0267 (3)
H4AA0.07440.51660.77850.032*
C5A0.01825 (15)0.58036 (8)0.68319 (6)0.0212 (2)
H5AA−0.08900.57020.66540.025*
C6A0.08262 (13)0.62747 (7)0.64225 (6)0.01685 (19)
C7A0.03786 (12)0.70534 (7)0.53426 (6)0.01559 (18)
C8A0.10829 (12)0.66915 (7)0.49077 (6)0.01611 (18)
C9A0.03091 (12)0.79864 (7)0.52395 (5)0.01559 (18)
C10A0.11837 (13)0.90055 (7)0.44853 (6)0.01736 (19)
H10A0.04460.94420.45250.021*
H10B0.09720.89400.39790.021*
C11A0.28240 (15)0.93581 (9)0.48839 (7)0.0248 (2)
C12A0.13741 (14)0.57127 (8)0.48058 (6)0.0201 (2)
H12A0.05300.54940.43720.024*
H12B0.13440.53680.52070.024*
C13A0.29193 (16)0.55208 (9)0.47496 (9)0.0284 (3)
H13A0.30390.48770.47130.043*
H13B0.37650.57490.51710.043*
H13C0.29280.58160.43300.043*
F1B1.40543 (10)0.97140 (6)0.72206 (5)0.0347 (2)
F2B1.29257 (11)0.98298 (6)0.79574 (5)0.0353 (2)
F3B1.15899 (10)0.99932 (6)0.68199 (5)0.0337 (2)
O1B0.86609 (10)0.71693 (6)0.80232 (5)0.01864 (16)
O2B1.21261 (10)0.76971 (6)0.84486 (4)0.01944 (16)
H1OB1.18800.76730.87920.029*
N1B0.96106 (11)0.83472 (7)0.67117 (5)0.01796 (18)
N2B1.10254 (11)0.82572 (7)0.72879 (5)0.01590 (17)
C1B0.75881 (14)0.85277 (8)0.83482 (6)0.0203 (2)
H1BA0.80110.89090.81080.024*
C2B0.67177 (15)0.88829 (9)0.87052 (7)0.0243 (2)
H2BA0.65600.95070.87030.029*
C3B0.60848 (15)0.83187 (10)0.90634 (7)0.0265 (2)
H3BA0.55080.85630.93010.032*
C4B0.63163 (15)0.73870 (10)0.90657 (7)0.0250 (2)
H4BA0.58900.70060.93040.030*
C5B0.71822 (14)0.70211 (8)0.87132 (6)0.0198 (2)
H5BA0.73390.63970.87150.024*
C6B0.78125 (12)0.75984 (8)0.83571 (6)0.01636 (19)
C7B0.92916 (13)0.76861 (7)0.76383 (6)0.01631 (19)
C8B0.85532 (13)0.80022 (8)0.69294 (6)0.0185 (2)
C9B1.08731 (13)0.78561 (7)0.78566 (6)0.01529 (18)
C10B1.24605 (13)0.85110 (7)0.72379 (6)0.01700 (19)
H10C1.24290.83130.67770.020*
H10D1.33230.82000.76120.020*
C11B1.27517 (14)0.95189 (8)0.73120 (7)0.0229 (2)
C12B0.68516 (15)0.80124 (9)0.64426 (7)0.0249 (2)
H12C0.67000.83900.60280.030*
H12D0.62770.82880.66960.030*
C13B0.6182 (2)0.70828 (12)0.61840 (12)0.0492 (5)
H13D0.50890.71370.58790.074*
H13E0.63110.67070.65900.074*
H13F0.67200.68130.59180.074*
U11U22U33U12U13U23
F1A0.0471 (6)0.0628 (7)0.0289 (5)−0.0242 (5)0.0099 (4)−0.0171 (5)
F2A0.0398 (5)0.0210 (4)0.0647 (7)−0.0077 (3)0.0296 (5)0.0043 (4)
F3A0.0216 (4)0.0297 (4)0.0623 (6)0.0010 (3)0.0160 (4)0.0024 (4)
O1A0.0181 (3)0.0218 (4)0.0161 (3)−0.0019 (3)0.0082 (3)0.0050 (3)
O2A0.0276 (4)0.0192 (4)0.0184 (4)0.0039 (3)0.0149 (3)0.0020 (3)
N1A0.0206 (4)0.0159 (4)0.0158 (4)−0.0008 (3)0.0100 (3)−0.0014 (3)
N2A0.0199 (4)0.0153 (4)0.0150 (4)−0.0001 (3)0.0101 (3)0.0011 (3)
C1A0.0217 (5)0.0171 (5)0.0202 (5)0.0014 (4)0.0077 (4)−0.0001 (4)
C2A0.0282 (6)0.0220 (5)0.0226 (5)0.0066 (4)0.0051 (4)−0.0006 (4)
C3A0.0440 (7)0.0223 (5)0.0177 (5)0.0108 (5)0.0089 (5)0.0034 (4)
C4A0.0456 (7)0.0193 (5)0.0206 (5)0.0066 (5)0.0188 (5)0.0048 (4)
C5A0.0309 (6)0.0169 (5)0.0200 (5)0.0010 (4)0.0148 (4)0.0026 (4)
C6A0.0230 (5)0.0143 (4)0.0141 (4)0.0012 (4)0.0084 (4)0.0006 (3)
C7A0.0175 (4)0.0167 (4)0.0142 (4)−0.0018 (3)0.0081 (3)0.0018 (3)
C8A0.0170 (4)0.0170 (4)0.0152 (4)−0.0015 (3)0.0074 (3)−0.0006 (3)
C9A0.0175 (4)0.0181 (5)0.0128 (4)0.0005 (3)0.0077 (3)0.0009 (3)
C10A0.0202 (5)0.0166 (4)0.0173 (4)0.0000 (4)0.0098 (4)0.0029 (3)
C11A0.0253 (5)0.0220 (5)0.0289 (6)−0.0051 (4)0.0127 (5)−0.0011 (4)
C12A0.0226 (5)0.0167 (5)0.0232 (5)−0.0024 (4)0.0116 (4)−0.0012 (4)
C13A0.0291 (6)0.0194 (5)0.0423 (7)0.0025 (4)0.0202 (6)0.0021 (5)
F1B0.0263 (4)0.0322 (4)0.0462 (5)−0.0103 (3)0.0154 (4)0.0059 (4)
F2B0.0439 (5)0.0260 (4)0.0346 (5)−0.0037 (4)0.0145 (4)−0.0125 (3)
F3B0.0298 (4)0.0219 (4)0.0432 (5)0.0013 (3)0.0084 (4)0.0115 (3)
O1B0.0237 (4)0.0165 (3)0.0220 (4)−0.0016 (3)0.0158 (3)0.0007 (3)
O2B0.0189 (4)0.0267 (4)0.0143 (3)0.0009 (3)0.0083 (3)0.0028 (3)
N1B0.0187 (4)0.0217 (4)0.0146 (4)−0.0016 (3)0.0078 (3)0.0006 (3)
N2B0.0175 (4)0.0183 (4)0.0141 (4)−0.0015 (3)0.0086 (3)0.0000 (3)
C1B0.0225 (5)0.0193 (5)0.0210 (5)−0.0012 (4)0.0107 (4)0.0003 (4)
C2B0.0240 (5)0.0245 (6)0.0252 (5)0.0026 (4)0.0108 (4)−0.0031 (4)
C3B0.0221 (5)0.0351 (7)0.0264 (6)0.0010 (5)0.0141 (5)−0.0052 (5)
C4B0.0229 (5)0.0321 (6)0.0257 (6)−0.0047 (5)0.0158 (5)−0.0004 (5)
C5B0.0198 (5)0.0214 (5)0.0208 (5)−0.0032 (4)0.0109 (4)0.0007 (4)
C6B0.0155 (4)0.0196 (5)0.0154 (4)−0.0018 (3)0.0078 (3)−0.0009 (3)
C7B0.0187 (4)0.0171 (4)0.0163 (4)−0.0014 (4)0.0104 (4)0.0004 (3)
C8B0.0191 (5)0.0207 (5)0.0169 (4)−0.0022 (4)0.0085 (4)0.0001 (4)
C9B0.0191 (4)0.0153 (4)0.0146 (4)−0.0001 (3)0.0101 (4)−0.0006 (3)
C10B0.0187 (4)0.0171 (4)0.0189 (4)−0.0010 (4)0.0114 (4)−0.0004 (4)
C11B0.0225 (5)0.0189 (5)0.0269 (6)−0.0023 (4)0.0098 (4)0.0009 (4)
C12B0.0214 (5)0.0276 (6)0.0238 (5)−0.0013 (4)0.0072 (4)0.0018 (4)
C13B0.0315 (8)0.0303 (8)0.0669 (12)−0.0082 (6)0.0004 (8)−0.0036 (8)
F1A—C11A1.3326 (17)F1B—C11B1.3354 (15)
F2A—C11A1.3319 (16)F2B—C11B1.3351 (16)
F3A—C11A1.3354 (16)F3B—C11B1.3367 (15)
O1A—C7A1.3773 (13)O1B—C7B1.3822 (13)
O1A—C6A1.3866 (13)O1B—C6B1.3871 (13)
O2A—C9A1.3224 (13)O2B—C9B1.3162 (13)
O2A—H1OA0.8200O2B—H1OB0.8200
N1A—C8A1.3349 (14)N1B—C8B1.3360 (14)
N1A—N2A1.3675 (13)N1B—N2B1.3725 (13)
N2A—C9A1.3566 (13)N2B—C9B1.3554 (13)
N2A—C10A1.4352 (14)N2B—C10B1.4354 (14)
C1A—C6A1.3881 (16)C1B—C6B1.3822 (16)
C1A—C2A1.3910 (17)C1B—C2B1.3928 (17)
C1A—H1AA0.9300C1B—H1BA0.9300
C2A—C3A1.386 (2)C2B—C3B1.3848 (19)
C2A—H2AA0.9300C2B—H2BA0.9300
C3A—C4A1.382 (2)C3B—C4B1.387 (2)
C3A—H3AA0.9300C3B—H3BA0.9300
C4A—C5A1.3911 (17)C4B—C5B1.3884 (17)
C4A—H4AA0.9300C4B—H4BA0.9300
C5A—C6A1.3929 (15)C5B—C6B1.3919 (15)
C5A—H5AA0.9300C5B—H5BA0.9300
C7A—C9A1.3861 (15)C7B—C9B1.3836 (15)
C7A—C8A1.4032 (15)C7B—C8B1.4009 (15)
C8A—C12A1.4954 (16)C8B—C12B1.4949 (17)
C10A—C11A1.5070 (17)C10B—C11B1.5042 (16)
C10A—H10A0.9700C10B—H10C0.9700
C10A—H10B0.9700C10B—H10D0.9700
C12A—C13A1.5209 (18)C12B—C13B1.507 (2)
C12A—H12A0.9700C12B—H12C0.9700
C12A—H12B0.9700C12B—H12D0.9700
C13A—H13A0.9600C13B—H13D0.9600
C13A—H13B0.9600C13B—H13E0.9600
C13A—H13C0.9600C13B—H13F0.9600
C7A—O1A—C6A117.08 (9)C7B—O1B—C6B119.07 (9)
C9A—O2A—H1OA109.5C9B—O2B—H1OB109.5
C8A—N1A—N2A105.79 (9)C8B—N1B—N2B105.52 (9)
C9A—N2A—N1A111.89 (9)C9B—N2B—N1B111.82 (9)
C9A—N2A—C10A127.67 (9)C9B—N2B—C10B126.69 (9)
N1A—N2A—C10A120.44 (9)N1B—N2B—C10B121.34 (9)
C6A—C1A—C2A119.00 (11)C6B—C1B—C2B118.81 (11)
C6A—C1A—H1AA120.5C6B—C1B—H1BA120.6
C2A—C1A—H1AA120.5C2B—C1B—H1BA120.6
C3A—C2A—C1A120.90 (13)C3B—C2B—C1B120.87 (12)
C3A—C2A—H2AA119.5C3B—C2B—H2BA119.6
C1A—C2A—H2AA119.5C1B—C2B—H2BA119.6
C4A—C3A—C2A119.49 (12)C2B—C3B—C4B119.64 (11)
C4A—C3A—H3AA120.3C2B—C3B—H3BA120.2
C2A—C3A—H3AA120.3C4B—C3B—H3BA120.2
C3A—C4A—C5A120.68 (12)C3B—C4B—C5B120.27 (11)
C3A—C4A—H4AA119.7C3B—C4B—H4BA119.9
C5A—C4A—H4AA119.7C5B—C4B—H4BA119.9
C4A—C5A—C6A119.18 (12)C4B—C5B—C6B119.31 (11)
C4A—C5A—H5AA120.4C4B—C5B—H5BA120.3
C6A—C5A—H5AA120.4C6B—C5B—H5BA120.3
O1A—C6A—C1A123.38 (10)C1B—C6B—O1B123.89 (10)
O1A—C6A—C5A115.90 (10)C1B—C6B—C5B121.09 (10)
C1A—C6A—C5A120.72 (11)O1B—C6B—C5B115.02 (10)
O1A—C7A—C9A126.23 (10)O1B—C7B—C9B124.29 (10)
O1A—C7A—C8A127.02 (10)O1B—C7B—C8B128.23 (10)
C9A—C7A—C8A106.62 (9)C9B—C7B—C8B106.69 (9)
N1A—C8A—C7A109.98 (10)N1B—C8B—C7B110.12 (10)
N1A—C8A—C12A122.34 (10)N1B—C8B—C12B120.60 (10)
C7A—C8A—C12A127.65 (10)C7B—C8B—C12B129.26 (10)
O2A—C9A—N2A119.48 (10)O2B—C9B—N2B119.65 (10)
O2A—C9A—C7A134.79 (10)O2B—C9B—C7B134.49 (10)
N2A—C9A—C7A105.72 (9)N2B—C9B—C7B105.84 (9)
N2A—C10A—C11A111.64 (10)N2B—C10B—C11B112.69 (9)
N2A—C10A—H10A109.3N2B—C10B—H10C109.1
C11A—C10A—H10A109.3C11B—C10B—H10C109.1
N2A—C10A—H10B109.3N2B—C10B—H10D109.1
C11A—C10A—H10B109.3C11B—C10B—H10D109.1
H10A—C10A—H10B108.0H10C—C10B—H10D107.8
F2A—C11A—F1A107.48 (11)F2B—C11B—F1B107.93 (11)
F2A—C11A—F3A106.96 (11)F2B—C11B—F3B107.15 (11)
F1A—C11A—F3A107.17 (12)F1B—C11B—F3B107.11 (10)
F2A—C11A—C10A110.45 (11)F2B—C11B—C10B112.41 (10)
F1A—C11A—C10A112.14 (11)F1B—C11B—C10B109.64 (10)
F3A—C11A—C10A112.37 (11)F3B—C11B—C10B112.36 (10)
C8A—C12A—C13A114.89 (10)C8B—C12B—C13B113.70 (12)
C8A—C12A—H12A108.5C8B—C12B—H12C108.8
C13A—C12A—H12A108.5C13B—C12B—H12C108.8
C8A—C12A—H12B108.5C8B—C12B—H12D108.8
C13A—C12A—H12B108.5C13B—C12B—H12D108.8
H12A—C12A—H12B107.5H12C—C12B—H12D107.7
C12A—C13A—H13A109.5C12B—C13B—H13D109.5
C12A—C13A—H13B109.5C12B—C13B—H13E109.5
H13A—C13A—H13B109.5H13D—C13B—H13E109.5
C12A—C13A—H13C109.5C12B—C13B—H13F109.5
H13A—C13A—H13C109.5H13D—C13B—H13F109.5
H13B—C13A—H13C109.5H13E—C13B—H13F109.5
C8A—N1A—N2A—C9A0.04 (12)C8B—N1B—N2B—C9B0.58 (12)
C8A—N1A—N2A—C10A179.76 (10)C8B—N1B—N2B—C10B176.38 (10)
C6A—C1A—C2A—C3A1.65 (18)C6B—C1B—C2B—C3B−0.03 (18)
C1A—C2A—C3A—C4A−0.35 (19)C1B—C2B—C3B—C4B−0.16 (19)
C2A—C3A—C4A—C5A−0.87 (19)C2B—C3B—C4B—C5B0.2 (2)
C3A—C4A—C5A—C6A0.75 (18)C3B—C4B—C5B—C6B−0.10 (19)
C7A—O1A—C6A—C1A−0.79 (15)C2B—C1B—C6B—O1B−179.77 (11)
C7A—O1A—C6A—C5A179.25 (10)C2B—C1B—C6B—C5B0.16 (17)
C2A—C1A—C6A—O1A178.28 (10)C7B—O1B—C6B—C1B−1.95 (16)
C2A—C1A—C6A—C5A−1.76 (17)C7B—O1B—C6B—C5B178.11 (10)
C4A—C5A—C6A—O1A−179.46 (10)C4B—C5B—C6B—C1B−0.10 (17)
C4A—C5A—C6A—C1A0.58 (17)C4B—C5B—C6B—O1B179.84 (10)
C6A—O1A—C7A—C9A−103.42 (13)C6B—O1B—C7B—C9B109.05 (12)
C6A—O1A—C7A—C8A81.34 (14)C6B—O1B—C7B—C8B−82.47 (14)
N2A—N1A—C8A—C7A−0.27 (12)N2B—N1B—C8B—C7B−0.54 (13)
N2A—N1A—C8A—C12A177.87 (10)N2B—N1B—C8B—C12B178.04 (10)
O1A—C7A—C8A—N1A176.39 (10)O1B—C7B—C8B—N1B−169.75 (10)
C9A—C7A—C8A—N1A0.39 (12)C9B—C7B—C8B—N1B0.33 (13)
O1A—C7A—C8A—C12A−1.62 (18)O1B—C7B—C8B—C12B11.8 (2)
C9A—C7A—C8A—C12A−177.61 (11)C9B—C7B—C8B—C12B−178.10 (12)
N1A—N2A—C9A—O2A−178.67 (9)N1B—N2B—C9B—O2B178.28 (9)
C10A—N2A—C9A—O2A1.64 (17)C10B—N2B—C9B—O2B2.75 (16)
N1A—N2A—C9A—C7A0.20 (12)N1B—N2B—C9B—C7B−0.37 (12)
C10A—N2A—C9A—C7A−179.49 (10)C10B—N2B—C9B—C7B−175.90 (10)
O1A—C7A—C9A—O2A2.2 (2)O1B—C7B—C9B—O2B−7.8 (2)
C8A—C7A—C9A—O2A178.26 (12)C8B—C7B—C9B—O2B−178.33 (12)
O1A—C7A—C9A—N2A−176.39 (10)O1B—C7B—C9B—N2B170.60 (10)
C8A—C7A—C9A—N2A−0.35 (12)C8B—C7B—C9B—N2B0.03 (12)
C9A—N2A—C10A—C11A98.24 (13)C9B—N2B—C10B—C11B−104.92 (13)
N1A—N2A—C10A—C11A−81.44 (12)N1B—N2B—C10B—C11B79.95 (13)
N2A—C10A—C11A—F2A177.43 (10)N2B—C10B—C11B—F2B63.40 (13)
N2A—C10A—C11A—F1A−62.72 (14)N2B—C10B—C11B—F1B−176.55 (10)
N2A—C10A—C11A—F3A58.09 (14)N2B—C10B—C11B—F3B−57.56 (14)
N1A—C8A—C12A—C13A40.62 (16)N1B—C8B—C12B—C13B111.06 (16)
C7A—C8A—C12A—C13A−141.59 (12)C7B—C8B—C12B—C13B−70.65 (19)
D—H···AD—HH···AD···AD—H···A
O2A—H1OA···N1Bi0.821.792.5996 (15)169
O2B—H1OB···N1Aii0.821.762.5781 (14)177
Table 1

Selected torsion angles (°)

N1A—C8A—C12A—C13A40.62 (16)
N1B—C8B—C12B—C13B111.06 (16)
Table 2

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
O2A—H1OA⋯N1Bi0.821.792.5996 (15)169
O2B—H1OB⋯N1Aii0.821.762.5781 (14)177

Symmetry codes: (i) ; (ii) .

  15 in total

1.  Effect of anti-inflammatory and analgesic pyrazoles on arachidonic acid metabolism in isolated heart and gastric mucosa preparations.

Authors:  C Coersmeier; H R Wittenberg; U Aehringhaus; K W Dreyling; B M Peskar; K Brune; B A Peskar
Journal:  Agents Actions Suppl       Date:  1986

2.  Effects of a novel free radical scavenger, MCl-186, on ischemic brain damage in the rat distal middle cerebral artery occlusion model.

Authors:  H Kawai; H Nakai; M Suga; S Yuki; T Watanabe; K I Saito
Journal:  J Pharmacol Exp Ther       Date:  1997-05       Impact factor: 4.030

3.  Synthesis and preliminary evaluation of new 5-pyrazolinone derivatives as analgesic agents.

Authors:  A Gürsoy; S Demirayak; G Capan; K Erol; K Vural
Journal:  Eur J Med Chem       Date:  2000-03       Impact factor: 6.514

4.  Synthesis and antimicrobial activities of novel 1,5-diaryl pyrazoles.

Authors:  R Venkat Ragavan; V Vijayakumar; N Suchetha Kumari
Journal:  Eur J Med Chem       Date:  2009-12-28       Impact factor: 6.514

Review 5.  Pyrazolone derivatives.

Authors:  R N Brogden
Journal:  Drugs       Date:  1986       Impact factor: 9.546

6.  Synthesis of some novel bioactive 4-oxy/thio substituted-1H-pyrazol-5(4H)-ones via efficient cross-Claisen condensation.

Authors:  R Venkat Ragavan; V Vijayakumar; N Suchetha Kumari
Journal:  Eur J Med Chem       Date:  2009-04-14       Impact factor: 6.514

7.  Myocardial protection of MCI-186 in rabbit ischemia-reperfusion.

Authors:  Tai-Wing Wu; Ling-Hua Zeng; Jun Wu; Kwok-Pui Fung
Journal:  Life Sci       Date:  2002-09-27       Impact factor: 5.037

8.  5-Pentyl-4-phenyl-sulfonyl-1H-pyrazol-3-ol.

Authors:  Tara Shahani; Hoong-Kun Fun; R Venkat Ragavan; V Vijayakumar; S Sarveswari
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-05-29

9.  4-Methyl-5-phenyl-1H-pyrazol-3-ol.

Authors:  Tara Shahani; Hoong-Kun Fun; R Venkat Ragavan; V Vijayakumar; S Sarveswari
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-06-18

10.  Structure validation in chemical crystallography.

Authors:  Anthony L Spek
Journal:  Acta Crystallogr D Biol Crystallogr       Date:  2009-01-20
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