organic compounds
2-[5-(2-Methylphenyl)-3-(2-methylstyryl)-4,5-dihydro-1H-pyrazol-1-yl]-6-(thiophen-2-yl)-4-(trifluoromethyl)pyrimidine chloroform monosolvate
aEscola de Química e Alimentos, Universidade Federal do Rio Grande, Av. Itália, km 08, Campus Carreiros, 96203-900 Rio Grande, RS, Brazil, and bInstituto Federal Farroupilha, Campus Júlio de Castilhos, CEP 98130-000, Júlio, de Castilhos, RS, Brazil
*Correspondence e-mail: alexflores@furg.br
In the 28H23F3N4S·CHCl3, the chloroform solvate molecules connect the pyrimidine molecules into chains along [101] through weak C—H⋯N and C—H⋯Cl hydrogen-bond interactions. There are further connections between adjacent chains through F⋯Cl halogen contacts of 3.185 (3) Å, with the –CF3 group presenting a significant short F⋯F interchain distance of 2.712 (4) Å. The five-membered pyrazole ring is approximately planar (r.m.s. deviation = 0.050 Å). The pyrimidine ring makes dihedral angles of 84.15 (8) and 4.56 (8)° with the benzene rings.
of the title compound, CCCDC reference: 1007013
Related literature
For the synthesis of the title compound and similar crystal structures, see: Flores et al. (2006). For biological properties of 4-trifluoromethyl-2-(5-aryl-3-styryl-1H-pyrazol-1yl)-pyrimidines, see: Gressler et al. (2010). For halogen contacts, see: Baker et al. (2012); Metrangolo et al. (2008). For van der Waals radii, see: Batsanov (2001). For a related structure, see: Fabiani Claro Flores et al. (2014).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
CCDC reference: 1007013
https://doi.org/10.1107/S160053681401321X/zq2224sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S160053681401321X/zq2224Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S160053681401321X/zq2224Isup3.cml
To a mixture of 1-carboxamidino-3-(2'-methylstyryl)-5-(2-methylphenyl)-4,5-dihydro-1H-pyrazole hydrochloride (1.2 mmol) (Flores et al., 2006) and 1,1,1-trifluoro-4-methoxy-4-(tien-2-yl)-3-buten-2-one (1 mmol) in dry EtOH (3 ml) it was added three drops of BF3·OEt2, the mixture was stirred for 15 minutes. A yellow precipitated was isolated by filtration, washed with cold EtOH and recrystallized from CHCl3, affording the title compound.
All H atoms attached to C atoms were positioned with idealized geometry and were refined isotropic with Ueq(H) set to 1.5 times of the Ueq(C) for CH3 groups and 1.2 otherwise. It was used a riding model with C—H = 0.96 Å for CH3, 0.97 Å for CH2, 0.98 Å for CH and 0.93 Å for aromatic CH. The following set of reflections was omitted due to the large difference observed between Fo2 and Fc2: -1 -2 2; 0 0 1; 0 1 0; 1 0 0; -2 -3 4; -3 -3 1; -2 -3 3; -4 5 0; -6 -2 2; -2 -4 4; 2 -9 1; -2 8 0; 1 1 6; 1 1 4; 3 3 1.
The 4-trifluoromethyl-2-(5-aryl-3-styryl-1H-pyrazol-1yl)-pyrimidines are biologically active compounds (Gressler et al., 2010) obtained from a sequential two steps process involving [3 + 2] and [3 + 3] cyclocondensation starting from aminoguanidine (Flores et al., 2006). In the π-resonance involving all system. The phenyl groupment C11/C12/C14/C15/C16/C17 deviates from the least-squares plane by 83.42 (9)° of 4,5-dihydropyrazole ring, indicating an orientation perpendicular between the rings. The geometry of the heterocyclic system is similar to that reported in the literature (Flores et al., 2006). The chloroform solvate molecule plays an important role in the packing, connecting molecules into polymer-like chains through the following weak hydrogen bond interactions (Fig. 2): C29—H29···N2i (2.7056 (18) Å); C20i—H20i···Cl1 (2.9182 (12) Å); C1ii—H1ii···Cl1 (2.9072 (9) Å). The chloroform solvate also promotes further connections with adjacent chains through halogen long range contacts F1iii···Cl2 (3.1854 (29) Å). The CF3 group present a considerably short F2iii···F2i distance of 2.712 (4) Å (Baker et al., 2012), which may contribute to the arrangement observed in the solid state (symmetry codes: (i) –x + 1, –y + 1, –z + 2; (ii) –x, –y + 1, –z + 1; (iii) x + 1, y, z). All these interactions presented distances lesser than the sum of the van der Waals radii of the atoms involved (Batsanov, 2001). Besides, F···F contacts are quite similar to that described for larger halogen atoms, such as bromine and iodine (Metrangolo et al., 2008).
of the title compound, the is composed by the whole organic molecule, including an additional chloroform solvate (Fig. 1) and displaying some interesting conformational features (Fabiani Claro Flores et al., 2014). The styrene fragment is planar with r.m.s. deviation from the mean plane of 0.0456 Å and the least-squares plane angle between the 4,5-dihydropyrazole ring and the styrene fragment of 3.27 (19)°. Five-membered pyrazole and six-membered pyrimidine rings are also planar, with r.m.s. deviations from the plane of 0.0504 Å and 0.0044 Å, respectively. The torsion angle N4/N3/C9/N2 is 0.6 (4)°, showing that the pyrazole and pyrimidine rings are almost coplanar. The planarity can be confirmed by the pyrazole ring deviation from the least-squares plane by 1.87 (18)° from the pyrimidine ring. Additionally, the five-membered thien-2-yl ring is planar with r.m.s. deviation from the plane of 0.0040 Å and the least square plane angle between the pyrimidine ring and the thien-2-yl ring was 0.68 (18)°. This planarity observed is probably due to theFor the synthesis of the title compound and similar crystal structures, see: Flores et al. (2006). For biological properties of 4-trifluoromethyl-2-(5-aryl-3-styryl-1H-pyrazol-1yl)-pyrimidines, see: Gressler et al. (2010). For halogen contacts, see: Baker et al. (2012); Metrangolo et al. (2008). For van der Waals radii, see: Batsanov (2001). For a related structure, see: Fabiani Claro Flores, Correia Flores, Rosa de Menezes Vicenti, Pizzuti & Teixeira Campos (2014).
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).C28H23F3N4S·CHCl3 | Z = 2 |
Mr = 623.93 | F(000) = 640 |
Triclinic, P1 | Dx = 1.427 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 10.6606 (3) Å | Cell parameters from 6263 reflections |
b = 11.0902 (3) Å | θ = 2.8–25.1° |
c = 13.4230 (4) Å | µ = 0.43 mm−1 |
α = 100.518 (2)° | T = 273 K |
β = 105.863 (2)° | Prismatic, colourless |
γ = 100.848 (2)° | 0.31 × 0.28 × 0.16 mm |
V = 1452.55 (7) Å3 |
Bruker APEXII CCD diffractometer | 6974 independent reflections |
Radiation source: fine-focus sealed tube | 4777 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.024 |
φ and ω scans | θmax = 28.0°, θmin = 2.4° |
Absorption correction: gaussian (XPREP; Bruker, 2009) | h = −14→14 |
Tmin = 0.902, Tmax = 1 | k = −14→14 |
45041 measured reflections | l = −17→16 |
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)] = 0.068 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.242 | H-atom parameters constrained |
S = 1.11 | w = 1/[σ2(Fo2) + (0.1398P)2 + 0.5025P] where P = (Fo2 + 2Fc2)/3 |
6974 reflections | (Δ/σ)max < 0.001 |
361 parameters | Δρmax = 1.24 e Å−3 |
0 restraints | Δρmin = −0.93 e Å−3 |
C28H23F3N4S·CHCl3 | γ = 100.848 (2)° |
Mr = 623.93 | V = 1452.55 (7) Å3 |
Triclinic, P1 | Z = 2 |
a = 10.6606 (3) Å | Mo Kα radiation |
b = 11.0902 (3) Å | µ = 0.43 mm−1 |
c = 13.4230 (4) Å | T = 273 K |
α = 100.518 (2)° | 0.31 × 0.28 × 0.16 mm |
β = 105.863 (2)° |
Bruker APEXII CCD diffractometer | 6974 independent reflections |
Absorption correction: gaussian (XPREP; Bruker, 2009) | 4777 reflections with I > 2σ(I) |
Tmin = 0.902, Tmax = 1 | Rint = 0.024 |
45041 measured reflections |
R[F2 > 2σ(F2)] = 0.068 | 0 restraints |
wR(F2) = 0.242 | H-atom parameters constrained |
S = 1.11 | Δρmax = 1.24 e Å−3 |
6974 reflections | Δρmin = −0.93 e Å−3 |
361 parameters |
Experimental. Absorption correction: XPREP (Bruker, 2009) was used to perform the Gaussian absorption correction based on the face-indexed crystal size. |
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 | ||
S1 | −0.01728 (9) | 0.76442 (8) | 0.50222 (7) | 0.0682 (3) | |
C11 | 0.4130 (2) | 0.8288 (2) | 0.65685 (19) | 0.0438 (6) | |
C17 | 0.4753 (3) | 0.7295 (3) | 0.6497 (3) | 0.0572 (7) | |
H17 | 0.5028 | 0.6966 | 0.7087 | 0.069* | |
C12 | 0.3698 (3) | 0.8789 (3) | 0.5683 (2) | 0.0595 (8) | |
C16 | 0.4966 (4) | 0.6790 (4) | 0.5550 (3) | 0.0776 (11) | |
H16 | 0.5410 | 0.6145 | 0.5511 | 0.093* | |
C15 | 0.4518 (5) | 0.7249 (5) | 0.4671 (4) | 0.0985 (16) | |
H15 | 0.4633 | 0.6896 | 0.4029 | 0.118* | |
C14 | 0.3895 (5) | 0.8234 (4) | 0.4737 (3) | 0.0860 (12) | |
H14 | 0.3600 | 0.8535 | 0.4134 | 0.103* | |
Cl1 | 0.44264 (9) | 0.26973 (10) | 0.81760 (8) | 0.0848 (3) | |
Cl3 | 0.5764 (2) | 0.52932 (12) | 0.88980 (12) | 0.1361 (7) | |
Cl2 | 0.72237 (12) | 0.3306 (2) | 0.85929 (13) | 0.1408 (7) | |
C29 | 0.5949 (3) | 0.3790 (3) | 0.8970 (3) | 0.0664 (8) | |
H29 | 0.6084 | 0.3740 | 0.9712 | 0.080* | |
C23 | 1.0217 (3) | 1.1438 (2) | 1.1310 (2) | 0.0462 (6) | |
C22 | 0.9161 (2) | 1.0415 (2) | 1.12276 (19) | 0.0435 (6) | |
C28 | 0.9355 (3) | 0.9708 (3) | 1.1992 (2) | 0.0593 (8) | |
H28 | 0.8649 | 0.9046 | 1.1954 | 0.071* | |
C25 | 1.1422 (3) | 1.1681 (3) | 1.2150 (3) | 0.0618 (8) | |
H25 | 1.2126 | 1.2360 | 1.2215 | 0.074* | |
C26 | 1.1608 (3) | 1.0965 (3) | 1.2874 (3) | 0.0679 (9) | |
H26 | 1.2428 | 1.1143 | 1.3414 | 0.081* | |
C27 | 1.0552 (4) | 0.9959 (3) | 1.2795 (3) | 0.0699 (9) | |
H27 | 1.0659 | 0.9462 | 1.3285 | 0.084* | |
N2 | 0.22412 (19) | 0.6049 (2) | 0.83093 (15) | 0.0411 (5) | |
N1 | 0.15480 (19) | 0.71151 (19) | 0.69225 (15) | 0.0395 (4) | |
C9 | 0.2431 (2) | 0.6973 (2) | 0.78029 (18) | 0.0377 (5) | |
C6 | 0.0076 (2) | 0.5238 (3) | 0.6959 (2) | 0.0467 (6) | |
H6 | −0.0739 | 0.4625 | 0.6668 | 0.056* | |
C5 | 0.0375 (2) | 0.6247 (2) | 0.65126 (18) | 0.0409 (5) | |
C7 | 0.1059 (2) | 0.5198 (2) | 0.78595 (19) | 0.0413 (5) | |
N4 | 0.4644 (2) | 0.7868 (2) | 0.90721 (15) | 0.0431 (5) | |
N3 | 0.3620 (2) | 0.7876 (2) | 0.81858 (15) | 0.0423 (5) | |
C10 | 0.3995 (2) | 0.8858 (2) | 0.76382 (18) | 0.0401 (5) | |
H10 | 0.3334 | 0.9369 | 0.7545 | 0.048* | |
C19 | 0.5630 (2) | 0.8833 (2) | 0.92339 (18) | 0.0404 (5) | |
C21 | 0.7875 (2) | 1.0104 (2) | 1.03551 (19) | 0.0454 (6) | |
H21 | 0.7757 | 1.0682 | 0.9936 | 0.055* | |
C18 | 0.5347 (3) | 0.9649 (2) | 0.84646 (19) | 0.0448 (6) | |
H18B | 0.6048 | 0.9786 | 0.8134 | 0.054* | |
H18A | 0.5266 | 1.0463 | 0.8816 | 0.054* | |
C20 | 0.6865 (2) | 0.9077 (3) | 1.0108 (2) | 0.0463 (6) | |
H20 | 0.6959 | 0.8488 | 1.0517 | 0.056* | |
C3 | −0.1863 (3) | 0.5594 (3) | 0.4960 (2) | 0.0534 (7) | |
H3 | −0.2261 | 0.4863 | 0.5118 | 0.064* | |
C4 | −0.0573 (2) | 0.6396 (3) | 0.5552 (2) | 0.0447 (6) | |
C1 | −0.1672 (3) | 0.7167 (4) | 0.4033 (3) | 0.0666 (8) | |
H1 | −0.1924 | 0.7605 | 0.3513 | 0.080* | |
C2 | −0.2467 (3) | 0.6086 (4) | 0.4072 (2) | 0.0654 (9) | |
H2 | −0.3315 | 0.5699 | 0.3578 | 0.078* | |
C8 | 0.0840 (3) | 0.4152 (3) | 0.8404 (2) | 0.0531 (7) | |
F1 | −0.0216 (2) | 0.32016 (19) | 0.78234 (18) | 0.0835 (6) | |
F3 | 0.1888 (2) | 0.3649 (2) | 0.8628 (2) | 0.0819 (6) | |
F2 | 0.0635 (3) | 0.4554 (2) | 0.93190 (18) | 0.0898 (7) | |
C24 | 1.0106 (3) | 1.2256 (3) | 1.0535 (3) | 0.0641 (8) | |
H24C | 0.9226 | 1.1971 | 1.0010 | 0.096* | |
H24B | 1.0777 | 1.2202 | 1.0186 | 0.096* | |
H24A | 1.0244 | 1.3118 | 1.0910 | 0.096* | |
C13 | 0.3074 (4) | 0.9893 (4) | 0.5745 (3) | 0.0785 (10) | |
H13A | 0.3042 | 1.0170 | 0.6456 | 0.118* | |
H13C | 0.2176 | 0.9642 | 0.5248 | 0.118* | |
H13B | 0.3603 | 1.0574 | 0.5570 | 0.118* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0641 (5) | 0.0673 (5) | 0.0585 (5) | 0.0090 (4) | −0.0020 (3) | 0.0201 (4) |
C11 | 0.0383 (11) | 0.0434 (13) | 0.0392 (12) | −0.0038 (10) | 0.0074 (9) | 0.0071 (10) |
C17 | 0.0474 (14) | 0.0498 (16) | 0.0626 (17) | 0.0020 (12) | 0.0155 (12) | −0.0011 (13) |
C12 | 0.0619 (16) | 0.0635 (18) | 0.0427 (14) | −0.0045 (14) | 0.0108 (12) | 0.0174 (12) |
C16 | 0.067 (2) | 0.067 (2) | 0.088 (3) | 0.0004 (16) | 0.0387 (19) | −0.0115 (19) |
C15 | 0.109 (3) | 0.100 (3) | 0.069 (3) | −0.018 (3) | 0.053 (2) | −0.015 (2) |
C14 | 0.107 (3) | 0.093 (3) | 0.0460 (18) | −0.004 (2) | 0.0272 (19) | 0.0144 (18) |
Cl1 | 0.0610 (5) | 0.0950 (7) | 0.0881 (6) | 0.0108 (4) | 0.0046 (4) | 0.0360 (5) |
Cl3 | 0.1896 (16) | 0.0734 (7) | 0.1109 (10) | 0.0221 (8) | −0.0054 (10) | 0.0323 (7) |
Cl2 | 0.0650 (7) | 0.235 (2) | 0.1214 (11) | 0.0516 (9) | 0.0312 (7) | 0.0244 (11) |
C29 | 0.0627 (18) | 0.077 (2) | 0.0523 (16) | 0.0201 (16) | 0.0041 (13) | 0.0185 (15) |
C23 | 0.0416 (12) | 0.0459 (14) | 0.0461 (13) | 0.0052 (10) | 0.0116 (10) | 0.0092 (11) |
C22 | 0.0417 (12) | 0.0403 (13) | 0.0386 (12) | 0.0052 (10) | 0.0040 (9) | 0.0043 (10) |
C28 | 0.0522 (15) | 0.0561 (17) | 0.0515 (15) | −0.0062 (12) | −0.0020 (12) | 0.0184 (13) |
C25 | 0.0411 (13) | 0.0646 (19) | 0.0643 (18) | −0.0034 (12) | 0.0054 (12) | 0.0129 (14) |
C26 | 0.0485 (15) | 0.078 (2) | 0.0551 (16) | 0.0014 (14) | −0.0072 (12) | 0.0148 (15) |
C27 | 0.0674 (19) | 0.072 (2) | 0.0509 (16) | 0.0020 (16) | −0.0063 (14) | 0.0232 (15) |
N2 | 0.0359 (9) | 0.0469 (11) | 0.0386 (10) | 0.0062 (8) | 0.0106 (8) | 0.0127 (8) |
N1 | 0.0350 (9) | 0.0444 (11) | 0.0359 (10) | 0.0091 (8) | 0.0074 (7) | 0.0091 (8) |
C9 | 0.0331 (10) | 0.0429 (13) | 0.0353 (11) | 0.0082 (9) | 0.0094 (8) | 0.0090 (9) |
C6 | 0.0347 (11) | 0.0500 (15) | 0.0501 (14) | 0.0048 (10) | 0.0108 (10) | 0.0100 (11) |
C5 | 0.0334 (10) | 0.0484 (14) | 0.0386 (12) | 0.0121 (10) | 0.0095 (9) | 0.0061 (10) |
C7 | 0.0385 (11) | 0.0435 (13) | 0.0427 (12) | 0.0082 (10) | 0.0163 (9) | 0.0098 (10) |
N4 | 0.0362 (9) | 0.0495 (12) | 0.0373 (10) | 0.0053 (8) | 0.0027 (8) | 0.0145 (9) |
N3 | 0.0380 (10) | 0.0461 (12) | 0.0369 (10) | 0.0039 (8) | 0.0035 (8) | 0.0157 (8) |
C10 | 0.0388 (11) | 0.0372 (12) | 0.0397 (12) | 0.0055 (9) | 0.0069 (9) | 0.0110 (9) |
C19 | 0.0390 (11) | 0.0403 (12) | 0.0356 (11) | 0.0060 (9) | 0.0061 (9) | 0.0069 (9) |
C21 | 0.0434 (12) | 0.0440 (13) | 0.0399 (12) | 0.0053 (10) | 0.0039 (10) | 0.0085 (10) |
C18 | 0.0475 (13) | 0.0388 (13) | 0.0379 (12) | 0.0027 (10) | 0.0033 (10) | 0.0087 (10) |
C20 | 0.0408 (12) | 0.0474 (14) | 0.0424 (12) | 0.0048 (10) | 0.0031 (10) | 0.0123 (10) |
C3 | 0.0343 (12) | 0.0724 (19) | 0.0447 (13) | 0.0144 (12) | 0.0015 (10) | 0.0088 (12) |
C4 | 0.0360 (11) | 0.0522 (15) | 0.0420 (12) | 0.0133 (10) | 0.0070 (9) | 0.0078 (11) |
C1 | 0.0600 (17) | 0.082 (2) | 0.0528 (16) | 0.0280 (17) | 0.0008 (13) | 0.0196 (15) |
C2 | 0.0439 (14) | 0.089 (2) | 0.0522 (16) | 0.0213 (15) | −0.0012 (12) | 0.0114 (15) |
C8 | 0.0473 (14) | 0.0529 (16) | 0.0582 (16) | 0.0045 (12) | 0.0189 (12) | 0.0168 (13) |
F1 | 0.0741 (13) | 0.0630 (12) | 0.0957 (15) | −0.0129 (10) | 0.0130 (11) | 0.0288 (11) |
F3 | 0.0684 (12) | 0.0774 (13) | 0.1198 (17) | 0.0293 (10) | 0.0324 (12) | 0.0574 (12) |
F2 | 0.139 (2) | 0.0786 (14) | 0.0794 (14) | 0.0263 (14) | 0.0685 (14) | 0.0346 (11) |
C24 | 0.0557 (16) | 0.0616 (18) | 0.0724 (19) | 0.0038 (14) | 0.0174 (14) | 0.0262 (15) |
C13 | 0.093 (3) | 0.077 (2) | 0.0596 (19) | 0.0149 (19) | 0.0050 (17) | 0.0383 (17) |
S1—C1 | 1.692 (3) | C9—N3 | 1.361 (3) |
S1—C4 | 1.705 (3) | C6—C7 | 1.381 (3) |
C11—C17 | 1.391 (4) | C6—C5 | 1.388 (4) |
C11—C12 | 1.403 (4) | C6—H6 | 0.9300 |
C11—C10 | 1.516 (4) | C5—C4 | 1.463 (3) |
C17—C16 | 1.388 (5) | C7—C8 | 1.494 (4) |
C17—H17 | 0.9300 | N4—C19 | 1.289 (3) |
C12—C14 | 1.395 (5) | N4—N3 | 1.380 (3) |
C12—C13 | 1.500 (5) | N3—C10 | 1.475 (3) |
C16—C15 | 1.371 (7) | C10—C18 | 1.541 (3) |
C16—H16 | 0.9300 | C10—H10 | 0.9800 |
C15—C14 | 1.383 (7) | C19—C20 | 1.445 (3) |
C15—H15 | 0.9300 | C19—C18 | 1.500 (3) |
C14—H14 | 0.9300 | C21—C20 | 1.331 (4) |
Cl1—C29 | 1.755 (4) | C21—H21 | 0.9300 |
Cl3—C29 | 1.732 (4) | C18—H18B | 0.9700 |
Cl2—C29 | 1.716 (4) | C18—H18A | 0.9700 |
C29—H29 | 0.9800 | C20—H20 | 0.9300 |
C23—C25 | 1.401 (4) | C3—C4 | 1.413 (4) |
C23—C22 | 1.405 (4) | C3—C2 | 1.444 (4) |
C23—C24 | 1.495 (4) | C3—H3 | 0.9300 |
C22—C28 | 1.396 (4) | C1—C2 | 1.350 (5) |
C22—C21 | 1.472 (3) | C1—H1 | 0.9300 |
C28—C27 | 1.368 (4) | C2—H2 | 0.9300 |
C28—H28 | 0.9300 | C8—F2 | 1.319 (4) |
C25—C26 | 1.361 (5) | C8—F3 | 1.327 (4) |
C25—H25 | 0.9300 | C8—F1 | 1.327 (3) |
C26—C27 | 1.393 (5) | C24—H24C | 0.9600 |
C26—H26 | 0.9300 | C24—H24B | 0.9600 |
C27—H27 | 0.9300 | C24—H24A | 0.9600 |
N2—C7 | 1.331 (3) | C13—H13A | 0.9600 |
N2—C9 | 1.343 (3) | C13—H13C | 0.9600 |
N1—C5 | 1.330 (3) | C13—H13B | 0.9600 |
N1—C9 | 1.350 (3) | ||
C1—S1—C4 | 91.99 (16) | C6—C7—C8 | 120.5 (2) |
C17—C11—C12 | 120.6 (3) | C19—N4—N3 | 107.67 (19) |
C17—C11—C10 | 118.4 (2) | C9—N3—N4 | 122.22 (19) |
C12—C11—C10 | 120.9 (3) | C9—N3—C10 | 123.73 (18) |
C16—C17—C11 | 120.5 (3) | N4—N3—C10 | 113.73 (18) |
C16—C17—H17 | 119.8 | N3—C10—C11 | 111.8 (2) |
C11—C17—H17 | 119.8 | N3—C10—C18 | 100.66 (18) |
C14—C12—C11 | 117.3 (4) | C11—C10—C18 | 113.0 (2) |
C14—C12—C13 | 120.6 (3) | N3—C10—H10 | 110.4 |
C11—C12—C13 | 122.0 (3) | C11—C10—H10 | 110.4 |
C15—C16—C17 | 119.5 (4) | C18—C10—H10 | 110.4 |
C15—C16—H16 | 120.2 | N4—C19—C20 | 120.8 (2) |
C17—C16—H16 | 120.2 | N4—C19—C18 | 114.1 (2) |
C16—C15—C14 | 120.3 (3) | C20—C19—C18 | 125.1 (2) |
C16—C15—H15 | 119.9 | C20—C21—C22 | 126.3 (2) |
C14—C15—H15 | 119.9 | C20—C21—H21 | 116.9 |
C15—C14—C12 | 121.8 (4) | C22—C21—H21 | 116.9 |
C15—C14—H14 | 119.1 | C19—C18—C10 | 102.5 (2) |
C12—C14—H14 | 119.1 | C19—C18—H18B | 111.3 |
Cl2—C29—Cl3 | 118.3 (2) | C10—C18—H18B | 111.3 |
Cl2—C29—Cl1 | 107.7 (2) | C19—C18—H18A | 111.3 |
Cl3—C29—Cl1 | 107.82 (18) | C10—C18—H18A | 111.3 |
Cl2—C29—H29 | 107.6 | H18B—C18—H18A | 109.2 |
Cl3—C29—H29 | 107.6 | C21—C20—C19 | 123.2 (2) |
Cl1—C29—H29 | 107.6 | C21—C20—H20 | 118.4 |
C25—C23—C22 | 117.9 (3) | C19—C20—H20 | 118.4 |
C25—C23—C24 | 119.4 (3) | C4—C3—C2 | 109.4 (3) |
C22—C23—C24 | 122.7 (2) | C4—C3—H3 | 125.3 |
C28—C22—C23 | 118.7 (2) | C2—C3—H3 | 125.3 |
C28—C22—C21 | 120.9 (2) | C3—C4—C5 | 127.3 (3) |
C23—C22—C21 | 120.4 (2) | C3—C4—S1 | 112.3 (2) |
C27—C28—C22 | 122.0 (3) | C5—C4—S1 | 120.49 (19) |
C27—C28—H28 | 119.0 | C2—C1—S1 | 113.3 (2) |
C22—C28—H28 | 119.0 | C2—C1—H1 | 123.4 |
C26—C25—C23 | 122.8 (3) | S1—C1—H1 | 123.4 |
C26—C25—H25 | 118.6 | C1—C2—C3 | 113.0 (3) |
C23—C25—H25 | 118.6 | C1—C2—H2 | 123.5 |
C25—C26—C27 | 119.0 (3) | C3—C2—H2 | 123.5 |
C25—C26—H26 | 120.5 | F2—C8—F3 | 106.5 (3) |
C27—C26—H26 | 120.5 | F2—C8—F1 | 106.5 (2) |
C28—C27—C26 | 119.6 (3) | F3—C8—F1 | 106.3 (2) |
C28—C27—H27 | 120.2 | F2—C8—C7 | 111.6 (2) |
C26—C27—H27 | 120.2 | F3—C8—C7 | 112.5 (2) |
C7—N2—C9 | 114.4 (2) | F1—C8—C7 | 113.0 (2) |
C5—N1—C9 | 116.6 (2) | C23—C24—H24C | 109.5 |
N2—C9—N1 | 126.6 (2) | C23—C24—H24B | 109.5 |
N2—C9—N3 | 119.0 (2) | H24C—C24—H24B | 109.5 |
N1—C9—N3 | 114.4 (2) | C23—C24—H24A | 109.5 |
C7—C6—C5 | 116.1 (2) | H24C—C24—H24A | 109.5 |
C7—C6—H6 | 122.0 | H24B—C24—H24A | 109.5 |
C5—C6—H6 | 122.0 | C12—C13—H13A | 109.5 |
N1—C5—C6 | 121.9 (2) | C12—C13—H13C | 109.5 |
N1—C5—C4 | 116.5 (2) | H13A—C13—H13C | 109.5 |
C6—C5—C4 | 121.7 (2) | C12—C13—H13B | 109.5 |
N2—C7—C6 | 124.5 (2) | H13A—C13—H13B | 109.5 |
N2—C7—C8 | 115.1 (2) | H13C—C13—H13B | 109.5 |
C12—C11—C17—C16 | 0.6 (4) | C19—N4—N3—C9 | 179.9 (2) |
C10—C11—C17—C16 | −176.4 (3) | C19—N4—N3—C10 | 6.2 (3) |
C17—C11—C12—C14 | 1.2 (4) | C9—N3—C10—C11 | −64.4 (3) |
C10—C11—C12—C14 | 178.1 (3) | N4—N3—C10—C11 | 109.2 (2) |
C17—C11—C12—C13 | −177.5 (3) | C9—N3—C10—C18 | 175.5 (2) |
C10—C11—C12—C13 | −0.6 (4) | N4—N3—C10—C18 | −10.9 (3) |
C11—C17—C16—C15 | −2.2 (5) | C17—C11—C10—N3 | −41.0 (3) |
C17—C16—C15—C14 | 2.0 (6) | C12—C11—C10—N3 | 142.0 (2) |
C16—C15—C14—C12 | −0.2 (6) | C17—C11—C10—C18 | 71.7 (3) |
C11—C12—C14—C15 | −1.4 (5) | C12—C11—C10—C18 | −105.3 (3) |
C13—C12—C14—C15 | 177.3 (4) | N3—N4—C19—C20 | −179.4 (2) |
C25—C23—C22—C28 | 1.1 (4) | N3—N4—C19—C18 | 1.9 (3) |
C24—C23—C22—C28 | −179.7 (3) | C28—C22—C21—C20 | −9.4 (5) |
C25—C23—C22—C21 | −179.3 (3) | C23—C22—C21—C20 | 171.0 (3) |
C24—C23—C22—C21 | −0.1 (4) | N4—C19—C18—C10 | −8.5 (3) |
C23—C22—C28—C27 | −2.0 (5) | C20—C19—C18—C10 | 172.9 (2) |
C21—C22—C28—C27 | 178.4 (3) | N3—C10—C18—C19 | 10.6 (2) |
C22—C23—C25—C26 | 0.5 (5) | C11—C10—C18—C19 | −108.7 (2) |
C24—C23—C25—C26 | −178.7 (3) | C22—C21—C20—C19 | −179.7 (2) |
C23—C25—C26—C27 | −1.2 (6) | N4—C19—C20—C21 | −175.2 (3) |
C22—C28—C27—C26 | 1.3 (6) | C18—C19—C20—C21 | 3.3 (4) |
C25—C26—C27—C28 | 0.3 (6) | C2—C3—C4—C5 | 179.8 (3) |
C7—N2—C9—N1 | 1.2 (4) | C2—C3—C4—S1 | −0.3 (3) |
C7—N2—C9—N3 | −178.6 (2) | N1—C5—C4—C3 | 178.8 (2) |
C5—N1—C9—N2 | −0.4 (4) | C6—C5—C4—C3 | 0.1 (4) |
C5—N1—C9—N3 | 179.3 (2) | N1—C5—C4—S1 | −1.1 (3) |
C9—N1—C5—C6 | −0.6 (3) | C6—C5—C4—S1 | −179.9 (2) |
C9—N1—C5—C4 | −179.3 (2) | C1—S1—C4—C3 | 0.6 (2) |
C7—C6—C5—N1 | 0.8 (4) | C1—S1—C4—C5 | −179.4 (2) |
C7—C6—C5—C4 | 179.4 (2) | C4—S1—C1—C2 | −0.9 (3) |
C9—N2—C7—C6 | −1.0 (4) | S1—C1—C2—C3 | 0.9 (4) |
C9—N2—C7—C8 | 179.1 (2) | C4—C3—C2—C1 | −0.4 (4) |
C5—C6—C7—N2 | 0.1 (4) | N2—C7—C8—F2 | 72.4 (3) |
C5—C6—C7—C8 | 180.0 (2) | C6—C7—C8—F2 | −107.5 (3) |
N2—C9—N3—N4 | 0.6 (4) | N2—C7—C8—F3 | −47.2 (3) |
N1—C9—N3—N4 | −179.2 (2) | C6—C7—C8—F3 | 132.9 (3) |
N2—C9—N3—C10 | 173.7 (2) | N2—C7—C8—F1 | −167.5 (2) |
N1—C9—N3—C10 | −6.1 (3) | C6—C7—C8—F1 | 12.6 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
C20—H20···Cl1i | 0.93 | 2.92 | 3.667 (3) | 139 |
C29—H29···N2i | 0.98 | 2.71 | 3.588 (4) | 150 |
C1—H1···Cl1ii | 0.93 | 2.91 | 3.606 (3) | 133 |
Symmetry codes: (i) −x+1, −y+1, −z+2; (ii) −x, −y+1, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C20—H20···Cl1i | 0.93 | 2.92 | 3.667 (3) | 138.5 |
C29—H29···N2i | 0.98 | 2.71 | 3.588 (4) | 150.0 |
C1—H1···Cl1ii | 0.93 | 2.91 | 3.606 (3) | 133.0 |
Symmetry codes: (i) −x+1, −y+1, −z+2; (ii) −x, −y+1, −z+1. |
Acknowledgements
The authors acknowledge the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, Universal grant 6577818477962764–01), the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES-PROEX) and the Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul (FAPERGS, PqG grant 1016236) for financial support.
References
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The 4-trifluoromethyl-2-(5-aryl-3-styryl-1H-pyrazol-1yl)-pyrimidines are biologically active compounds (Gressler et al., 2010) obtained from a sequential two steps process involving [3 + 2] and [3 + 3] cyclocondensation starting from aminoguanidine (Flores et al., 2006). In the crystal structure of the title compound, the asymmetric unit is composed by the whole organic molecule, including an additional chloroform solvate (Fig. 1) and displaying some interesting conformational features (Fabiani Claro Flores et al., 2014). The styrene fragment is planar with r.m.s. deviation from the mean plane of 0.0456 Å and the least-squares plane angle between the 4,5-dihydropyrazole ring and the styrene fragment of 3.27 (19)°. Five-membered pyrazole and six-membered pyrimidine rings are also planar, with r.m.s. deviations from the plane of 0.0504 Å and 0.0044 Å, respectively. The torsion angle N4/N3/C9/N2 is 0.6 (4)°, showing that the pyrazole and pyrimidine rings are almost coplanar. The planarity can be confirmed by the pyrazole ring deviation from the least-squares plane by 1.87 (18)° from the pyrimidine ring. Additionally, the five-membered thien-2-yl ring is planar with r.m.s. deviation from the plane of 0.0040 Å and the least square plane angle between the pyrimidine ring and the thien-2-yl ring was 0.68 (18)°. This planarity observed is probably due to the π-resonance involving all system. The phenyl groupment C11/C12/C14/C15/C16/C17 deviates from the least-squares plane by 83.42 (9)° of 4,5-dihydropyrazole ring, indicating an orientation perpendicular between the rings. The geometry of the heterocyclic system is similar to that reported in the literature (Flores et al., 2006). The chloroform solvate molecule plays an important role in the crystal structure packing, connecting molecules into polymer-like chains through the following weak hydrogen bond interactions (Fig. 2): C29—H29···N2i (2.7056 (18) Å); C20i—H20i···Cl1 (2.9182 (12) Å); C1ii—H1ii···Cl1 (2.9072 (9) Å). The chloroform solvate also promotes further connections with adjacent chains through halogen long range contacts F1iii···Cl2 (3.1854 (29) Å). The CF3 group present a considerably short F2iii···F2i distance of 2.712 (4) Å (Baker et al., 2012), which may contribute to the arrangement observed in the solid state (symmetry codes: (i) –x + 1, –y + 1, –z + 2; (ii) –x, –y + 1, –z + 1; (iii) x + 1, y, z). All these interactions presented distances lesser than the sum of the van der Waals radii of the atoms involved (Batsanov, 2001). Besides, F···F contacts are quite similar to that described for larger halogen atoms, such as bromine and iodine (Metrangolo et al., 2008).