organic compounds
4-[5-(Furan-2-yl)-3-trifluoromethyl-1H-pyrazol-1-yl]benzenesulfonamide
aChemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah, Saudi Arabia, bThe Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, PO Box 80203, Saudi Arabia, and cDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: edward.tiekink@gmail.com
In the title compound, C14H10F3N3O3S, there are significant twists in the molecule, as seen in the values of the dihedral angles between the pyrazole ring and each of the furan [31.1 (2)°] and benzene rings [55.58 (10)°]. The amino N atom occupies a position almost normal to the benzene ring [N—S—Car—Car (ar = aromatic) torsion angle = 83.70 (19)°]. One amino H atom forms a hydrogen bond to the tricoordinate pyrazole N atom and the other interacts with a sulfonamide O atom, forming a supramolecular chain along [010]. The chains are consolidated into a supramolecular layers via C—H⋯O interactions involving the second sulfonamide O atom; layers stack along [10-1]. The furan ring was found to be disordered over two diagonally opposite orientations of equal occupancy.
Related literature
For background to the biological applications of et al. (2004); Dogruer et al. (2010). For the biological efficacy of F and CF3 in medicinal chemistry, see: Fokin & Kolomiyets (1988); Bonacorso et al. (2006). For related structures, see: Asiri et al. (2011, 2012).
see: CroitoruExperimental
Crystal data
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Refinement
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Data collection: CrysAlis PRO (Agilent, 2011); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536812011920/hb6693sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812011920/hb6693Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812011920/hb6693Isup3.cml
A solution of 4,4,4-trifluoro-1-phenyl-1,3-butanedione (2.16 g, 0.01 mmol) in ethanol (50 ml) was refluxed with 4-hydrazinobenzenesulfonamide hydrochloride (2.2 g, 0.01 mmol) for 4 h, concentrated and cooled. The precipitated crude product was filtered and recrystallized from ethanol as colourless prisms. Yield: 74%. M.pt: 467–468 K.
Carbon-bound H-atoms were placed in calculated positions [C—H = 0.95 Å; Uiso(H) = 1.2Ueq(C)] and were included in the
in the riding model approximation. The N—H atoms were located in a difference Fourier map, and were refined with a distance restraint of N—H = 0.88±0.01 Å; their Uiso values were refined.The furyl ring is disordered over two positions; the disorder could not be refined, and was assumed as a 1:1 type of disorder. The ring was refined as a rigid pentagon of 1.35 Å sides. The Uij values of C6' was equated to those of O6 (as well as the O1'/C6, C5'/C5, C6'/O1, C7'/C8 and C8'/C7 pairs). The benzene ring was refined as a rigid hexagon of 1.39 Å sides.
Owing to poor agreement, the (8 0 10) reflection was omitted from the final cycles of refinement.
The title CF3-derivatized sulfonamide (I), was investigated. in connection with on-going studies of
both biological (Croitoru et al., 2004; Dogruer et al., 2010) and crystallographic (Asiri et al., 2011; Asiri et al., 2012). In particular, fluoride in the form of a trifluoromethyl group, which has long been recognized in medicinal chemistry for its ability to alter the physico-chemical and biological characteristics of molecules (Fokin & Kolomiyets, 1988; Bonacorso et al., 2006), is featured in the new molecule to promote enhanced biological properties.In (I), Fig. 1, the dihedral angle of 31.1 (2)° between the furanyl and pyrazole rings indicates a significant twist between these rings. Similarly, the dihedral angle of 55.58 (10)° between the pyrazole ring and the benzene ring to which it is connected indicates a significant twist. The amino-N3 atom occupies a position almost normal to the benzene ring, forming a N3—S1—C12—C13 torsion angle of 83.70 (19)°. This allows the participation of both N—H atoms in hydrogen bonding interactions.
One amino-H atom forms a hydrogen bond to the pyrazole-N2 atom of a centrosymmetrically related molecule to form an 18-membered {···HNSC4NN}2 synthon, Table 1. These are connected into a supramolecular chain via a N—H···O(sulfonamide) hydrogen bonding, Fig. 2 and Table 1. The second sulfonamide-O2 atom forms two C—H···O interactions, Table 1, to consolidate the chains into a supramolecular layers. No specific intermolecular interactions occur between the layers that stack along [1 0 1], Fig. 3.
For background to the biological applications of
see: Croitoru et al. (2004); Dogruer et al. (2010). For the biological efficacy of F and CF3 in medicinal chemistry, see: Fokin & Kolomiyets (1988); Bonacorso et al. (2006). For related structures, see: Asiri et al. (2011, 2012).Data collection: CrysAlis PRO (Agilent, 2011); cell
CrysAlis PRO (Agilent, 2011); data reduction: CrysAlis PRO (Agilent, 2011); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).C14H10F3N3O3S | F(000) = 728 |
Mr = 357.31 | Dx = 1.591 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 1899 reflections |
a = 16.0536 (13) Å | θ = 2.5–27.5° |
b = 4.8173 (4) Å | µ = 0.27 mm−1 |
c = 20.6202 (15) Å | T = 100 K |
β = 110.728 (8)° | Prism, colourless |
V = 1491.4 (2) Å3 | 0.25 × 0.10 × 0.05 mm |
Z = 4 |
Agilent SuperNova Dual diffractometer with an Atlas detector | 3431 independent reflections |
Radiation source: SuperNova (Mo) X-ray Source | 2400 reflections with I > 2σ(I) |
Mirror monochromator | Rint = 0.051 |
Detector resolution: 10.4041 pixels mm-1 | θmax = 27.6°, θmin = 2.7° |
ω scan | h = −20→15 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2011) | k = −6→6 |
Tmin = 0.935, Tmax = 0.987 | l = −26→25 |
6503 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)] = 0.069 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.189 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0768P)2 + 1.5964P] where P = (Fo2 + 2Fc2)/3 |
3431 reflections | (Δ/σ)max = 0.001 |
210 parameters | Δρmax = 0.57 e Å−3 |
33 restraints | Δρmin = −0.63 e Å−3 |
C14H10F3N3O3S | V = 1491.4 (2) Å3 |
Mr = 357.31 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 16.0536 (13) Å | µ = 0.27 mm−1 |
b = 4.8173 (4) Å | T = 100 K |
c = 20.6202 (15) Å | 0.25 × 0.10 × 0.05 mm |
β = 110.728 (8)° |
Agilent SuperNova Dual diffractometer with an Atlas detector | 3431 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2011) | 2400 reflections with I > 2σ(I) |
Tmin = 0.935, Tmax = 0.987 | Rint = 0.051 |
6503 measured reflections |
R[F2 > 2σ(F2)] = 0.069 | 33 restraints |
wR(F2) = 0.189 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | Δρmax = 0.57 e Å−3 |
3431 reflections | Δρmin = −0.63 e Å−3 |
210 parameters |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
S1 | 0.55947 (6) | 0.78623 (17) | 0.68278 (5) | 0.0271 (3) | |
F1 | 0.67465 (17) | −0.1684 (5) | 0.34173 (13) | 0.0506 (7) | |
F2 | 0.7248 (2) | 0.1593 (5) | 0.29748 (11) | 0.0559 (7) | |
F3 | 0.81166 (17) | −0.1668 (6) | 0.35146 (14) | 0.0605 (8) | |
O1 | 0.8796 (3) | 0.7601 (14) | 0.6001 (3) | 0.0229 (13) | 0.50 |
C5 | 0.9023 (5) | 0.5273 (19) | 0.5738 (4) | 0.0223 (8) | 0.50 |
C6 | 0.9876 (5) | 0.4658 (18) | 0.6122 (5) | 0.0330 (13) | 0.50 |
H6 | 1.0207 | 0.3124 | 0.6052 | 0.040* | 0.50 |
C7 | 1.0177 (3) | 0.6606 (15) | 0.6621 (3) | 0.0298 (17) | 0.50 |
H7 | 1.0757 | 0.6683 | 0.6965 | 0.036* | 0.50 |
C8 | 0.9510 (4) | 0.8425 (11) | 0.6547 (3) | 0.035 (2) | 0.50 |
H8 | 0.9537 | 1.0006 | 0.6829 | 0.042* | 0.50 |
O1' | 0.9946 (4) | 0.4216 (15) | 0.5961 (3) | 0.0330 (13) | 0.50 |
C5' | 0.9085 (4) | 0.501 (2) | 0.5745 (4) | 0.0223 (8) | 0.50 |
C6' | 0.9012 (4) | 0.7080 (18) | 0.6164 (4) | 0.0229 (13) | 0.50 |
H6' | 0.8480 | 0.8029 | 0.6130 | 0.028* | 0.50 |
C7' | 0.9829 (4) | 0.7561 (13) | 0.6638 (3) | 0.035 (2) | 0.50 |
H7' | 0.9972 | 0.8908 | 0.6998 | 0.042* | 0.50 |
C8' | 1.0406 (3) | 0.5791 (14) | 0.6513 (3) | 0.0298 (17) | 0.50 |
H8' | 1.1027 | 0.5675 | 0.6768 | 0.036* | 0.50 |
O2 | 0.61854 (18) | 0.7401 (7) | 0.75194 (14) | 0.0456 (8) | |
O3 | 0.5296 (2) | 1.0621 (5) | 0.65989 (17) | 0.0512 (9) | |
N1 | 0.70506 (19) | 0.2448 (6) | 0.44062 (14) | 0.0242 (6) | |
N2 | 0.75031 (18) | 0.3840 (6) | 0.50020 (14) | 0.0233 (6) | |
N3 | 0.4716 (2) | 0.6093 (6) | 0.67061 (15) | 0.0246 (6) | |
C1 | 0.7446 (2) | −0.0041 (8) | 0.35257 (17) | 0.0289 (8) | |
C2 | 0.7692 (2) | 0.1556 (7) | 0.41875 (17) | 0.0263 (7) | |
C3 | 0.8543 (2) | 0.2312 (7) | 0.46230 (17) | 0.0254 (7) | |
H3 | 0.9094 | 0.1894 | 0.4571 | 0.030* | |
C4 | 0.8404 (2) | 0.3810 (7) | 0.51480 (17) | 0.0240 (7) | |
C9 | 0.70348 (15) | 0.4776 (5) | 0.54273 (10) | 0.0215 (7) | |
C10 | 0.72944 (14) | 0.3863 (5) | 0.61097 (11) | 0.0441 (11) | |
H10 | 0.7778 | 0.2604 | 0.6285 | 0.053* | |
C11 | 0.68462 (16) | 0.4790 (6) | 0.65348 (8) | 0.0384 (10) | |
H11 | 0.7024 | 0.4165 | 0.7001 | 0.046* | |
C12 | 0.61384 (15) | 0.6630 (5) | 0.62776 (10) | 0.0238 (7) | |
C13 | 0.58788 (17) | 0.7544 (5) | 0.55953 (12) | 0.0555 (14) | |
H13 | 0.5395 | 0.8802 | 0.5419 | 0.067* | |
C14 | 0.63270 (18) | 0.6617 (5) | 0.51701 (9) | 0.0457 (11) | |
H14 | 0.6150 | 0.7242 | 0.4704 | 0.055* | |
H1 | 0.481 (2) | 0.430 (3) | 0.6746 (19) | 0.032 (10)* | |
H2 | 0.4245 (17) | 0.659 (8) | 0.6352 (14) | 0.041 (12)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0345 (5) | 0.0213 (4) | 0.0295 (5) | −0.0030 (4) | 0.0161 (4) | −0.0064 (3) |
F1 | 0.0543 (16) | 0.0558 (15) | 0.0475 (15) | −0.0290 (13) | 0.0251 (13) | −0.0239 (12) |
F2 | 0.094 (2) | 0.0472 (14) | 0.0228 (12) | −0.0098 (14) | 0.0162 (13) | −0.0029 (11) |
F3 | 0.0408 (15) | 0.0808 (19) | 0.0521 (16) | 0.0169 (13) | 0.0069 (12) | −0.0314 (14) |
O1 | 0.012 (3) | 0.026 (3) | 0.025 (3) | 0.009 (2) | −0.001 (2) | −0.002 (3) |
C5 | 0.0209 (18) | 0.024 (2) | 0.0233 (16) | 0.0009 (15) | 0.0097 (14) | 0.0001 (15) |
C6 | 0.0217 (18) | 0.035 (3) | 0.042 (3) | 0.0019 (17) | 0.012 (2) | −0.011 (2) |
C7 | 0.011 (3) | 0.042 (5) | 0.032 (3) | −0.003 (3) | 0.002 (2) | 0.001 (3) |
C8 | 0.048 (5) | 0.032 (4) | 0.030 (3) | −0.008 (4) | 0.020 (3) | −0.008 (3) |
O1' | 0.0217 (18) | 0.035 (3) | 0.042 (3) | 0.0019 (17) | 0.012 (2) | −0.011 (2) |
C5' | 0.0209 (18) | 0.024 (2) | 0.0233 (16) | 0.0009 (15) | 0.0097 (14) | 0.0001 (15) |
C6' | 0.012 (3) | 0.026 (3) | 0.025 (3) | 0.009 (2) | −0.001 (2) | −0.002 (3) |
C7' | 0.048 (5) | 0.032 (4) | 0.030 (3) | −0.008 (4) | 0.020 (3) | −0.008 (3) |
C8' | 0.011 (3) | 0.042 (5) | 0.032 (3) | −0.003 (3) | 0.002 (2) | 0.001 (3) |
O2 | 0.0350 (15) | 0.077 (2) | 0.0248 (14) | −0.0097 (14) | 0.0100 (12) | −0.0201 (14) |
O3 | 0.082 (2) | 0.0163 (13) | 0.079 (2) | 0.0030 (13) | 0.058 (2) | −0.0024 (13) |
N1 | 0.0237 (14) | 0.0303 (15) | 0.0172 (14) | −0.0032 (12) | 0.0054 (11) | −0.0016 (11) |
N2 | 0.0215 (14) | 0.0286 (14) | 0.0202 (14) | −0.0026 (12) | 0.0079 (12) | −0.0006 (11) |
N3 | 0.0285 (16) | 0.0206 (14) | 0.0247 (16) | 0.0029 (12) | 0.0094 (13) | 0.0014 (12) |
C1 | 0.0273 (18) | 0.0350 (19) | 0.0242 (17) | −0.0031 (15) | 0.0089 (15) | −0.0037 (15) |
C2 | 0.0258 (18) | 0.0289 (17) | 0.0242 (18) | −0.0009 (14) | 0.0090 (15) | −0.0004 (14) |
C3 | 0.0226 (17) | 0.0306 (18) | 0.0243 (17) | −0.0025 (14) | 0.0100 (14) | −0.0011 (14) |
C4 | 0.0199 (17) | 0.0304 (17) | 0.0224 (17) | −0.0006 (13) | 0.0084 (14) | 0.0028 (14) |
C9 | 0.0215 (16) | 0.0230 (16) | 0.0200 (16) | −0.0025 (13) | 0.0073 (13) | 0.0004 (13) |
C10 | 0.033 (2) | 0.078 (3) | 0.0251 (19) | 0.031 (2) | 0.0155 (17) | 0.020 (2) |
C11 | 0.027 (2) | 0.066 (3) | 0.0211 (18) | 0.0152 (19) | 0.0077 (15) | 0.0105 (18) |
C12 | 0.0291 (18) | 0.0192 (15) | 0.0249 (18) | −0.0011 (13) | 0.0118 (15) | −0.0011 (13) |
C13 | 0.082 (4) | 0.057 (3) | 0.036 (2) | 0.054 (3) | 0.032 (2) | 0.024 (2) |
C14 | 0.071 (3) | 0.046 (2) | 0.028 (2) | 0.033 (2) | 0.026 (2) | 0.0176 (18) |
S1—O2 | 1.423 (3) | C7'—H7' | 0.9500 |
S1—O3 | 1.435 (3) | C8'—H8' | 0.9500 |
S1—N3 | 1.590 (3) | N1—C2 | 1.334 (4) |
S1—C12 | 1.7614 (17) | N1—N2 | 1.362 (4) |
F1—C1 | 1.327 (4) | N2—C4 | 1.369 (4) |
F2—C1 | 1.325 (4) | N2—C9 | 1.416 (3) |
F3—C1 | 1.338 (4) | N3—H1 | 0.878 (10) |
O1—C5 | 1.3500 | N3—H2 | 0.878 (10) |
O1—C8 | 1.3500 | C1—C2 | 1.493 (5) |
C5—C6 | 1.3500 | C2—C3 | 1.391 (5) |
C5—C4 | 1.452 (5) | C3—C4 | 1.383 (5) |
C6—C7 | 1.3500 | C3—H3 | 0.9500 |
C6—H6 | 0.9500 | C9—C10 | 1.3900 |
C7—C8 | 1.3500 | C9—C14 | 1.3900 |
C7—H7 | 0.9500 | C10—C11 | 1.3900 |
C8—H8 | 0.9500 | C10—H10 | 0.9500 |
O1'—C5' | 1.3500 | C11—C12 | 1.3900 |
O1'—C8' | 1.3500 | C11—H11 | 0.9500 |
C5'—C6' | 1.3500 | C12—C13 | 1.3900 |
C5'—C4 | 1.446 (5) | C13—C14 | 1.3900 |
C6'—C7' | 1.3500 | C13—H13 | 0.9500 |
C6'—H6' | 0.9500 | C14—H14 | 0.9500 |
C7'—C8' | 1.3500 | ||
O2—S1—O3 | 120.06 (19) | S1—N3—H2 | 116 (3) |
O2—S1—N3 | 108.29 (17) | H1—N3—H2 | 115 (4) |
O3—S1—N3 | 105.67 (18) | F2—C1—F1 | 106.1 (3) |
O2—S1—C12 | 106.65 (14) | F2—C1—F3 | 106.5 (3) |
O3—S1—C12 | 106.52 (14) | F1—C1—F3 | 106.6 (3) |
N3—S1—C12 | 109.37 (14) | F2—C1—C2 | 112.5 (3) |
C5—O1—C8 | 108.0 | F1—C1—C2 | 113.3 (3) |
C6—C5—O1 | 108.0 | F3—C1—C2 | 111.3 (3) |
C6—C5—C4 | 129.5 (5) | N1—C2—C3 | 113.4 (3) |
O1—C5—C4 | 122.5 (5) | N1—C2—C1 | 119.3 (3) |
C5—C6—C7 | 108.0 | C3—C2—C1 | 127.4 (3) |
C5—C6—H6 | 126.0 | C4—C3—C2 | 104.4 (3) |
C7—C6—H6 | 126.0 | C4—C3—H3 | 127.8 |
C8—C7—C6 | 108.0 | C2—C3—H3 | 127.8 |
C8—C7—H7 | 126.0 | N2—C4—C3 | 106.5 (3) |
C6—C7—H7 | 126.0 | N2—C4—C5' | 127.1 (4) |
C7—C8—O1 | 108.0 | C3—C4—C5' | 126.3 (4) |
C7—C8—H8 | 126.0 | N2—C4—C5 | 122.4 (4) |
O1—C8—H8 | 126.0 | C3—C4—C5 | 131.1 (5) |
C5'—O1'—C8' | 108.0 | C10—C9—C14 | 120.0 |
O1'—C5'—C6' | 108.0 | C10—C9—N2 | 119.44 (17) |
O1'—C5'—C4 | 122.9 (5) | C14—C9—N2 | 120.56 (17) |
C6'—C5'—C4 | 129.0 (5) | C9—C10—C11 | 120.0 |
C7'—C6'—C5' | 108.0 | C9—C10—H10 | 120.0 |
C7'—C6'—H6' | 126.0 | C11—C10—H10 | 120.0 |
C5'—C6'—H6' | 126.0 | C12—C11—C10 | 120.0 |
C8'—C7'—C6' | 108.0 | C12—C11—H11 | 120.0 |
C8'—C7'—H7' | 126.0 | C10—C11—H11 | 120.0 |
C6'—C7'—H7' | 126.0 | C13—C12—C11 | 120.0 |
C7'—C8'—O1' | 108.0 | C13—C12—S1 | 120.39 (12) |
C7'—C8'—H8' | 126.0 | C11—C12—S1 | 119.58 (12) |
O1'—C8'—H8' | 126.0 | C12—C13—C14 | 120.0 |
C2—N1—N2 | 103.6 (3) | C12—C13—H13 | 120.0 |
N1—N2—C4 | 112.2 (3) | C14—C13—H13 | 120.0 |
N1—N2—C9 | 119.0 (3) | C13—C14—C9 | 120.0 |
C4—N2—C9 | 128.2 (3) | C13—C14—H14 | 120.0 |
S1—N3—H1 | 113 (3) | C9—C14—H14 | 120.0 |
C8—O1—C5—C6 | 0.0 | C2—C3—C4—C5 | −176.4 (7) |
C8—O1—C5—C4 | 179.3 (12) | O1'—C5'—C4—N2 | 159.5 (5) |
O1—C5—C6—C7 | 0.0 | C6'—C5'—C4—N2 | −22.8 (12) |
C4—C5—C6—C7 | −179.3 (13) | O1'—C5'—C4—C3 | −18.1 (12) |
C5—C6—C7—C8 | 0.0 | C6'—C5'—C4—C3 | 159.7 (6) |
C6—C7—C8—O1 | 0.0 | O1'—C5'—C4—C5 | −159 (10) |
C5—O1—C8—C7 | 0.0 | C6'—C5'—C4—C5 | 18 (9) |
C8'—O1'—C5'—C6' | 0.0 | C6—C5—C4—N2 | 150.0 (6) |
C8'—O1'—C5'—C4 | 178.2 (12) | O1—C5—C4—N2 | −29.1 (12) |
O1'—C5'—C6'—C7' | 0.0 | C6—C5—C4—C3 | −33.5 (12) |
C4—C5'—C6'—C7' | −178.0 (13) | O1—C5—C4—C3 | 147.3 (6) |
C5'—C6'—C7'—C8' | 0.0 | C6—C5—C4—C5' | 8 (9) |
C6'—C7'—C8'—O1' | 0.0 | O1—C5—C4—C5' | −171 (10) |
C5'—O1'—C8'—C7' | 0.0 | N1—N2—C9—C10 | 121.0 (3) |
C2—N1—N2—C4 | 0.0 (3) | C4—N2—C9—C10 | −49.5 (4) |
C2—N1—N2—C9 | −171.9 (3) | N1—N2—C9—C14 | −59.7 (3) |
N2—N1—C2—C3 | 0.3 (4) | C4—N2—C9—C14 | 129.8 (3) |
N2—N1—C2—C1 | −178.7 (3) | C14—C9—C10—C11 | 0.0 |
F2—C1—C2—N1 | 85.1 (4) | N2—C9—C10—C11 | 179.3 (2) |
F1—C1—C2—N1 | −35.3 (5) | C9—C10—C11—C12 | 0.0 |
F3—C1—C2—N1 | −155.4 (3) | C10—C11—C12—C13 | 0.0 |
F2—C1—C2—C3 | −93.8 (4) | C10—C11—C12—S1 | −178.32 (19) |
F1—C1—C2—C3 | 145.8 (4) | O2—S1—C12—C13 | −159.41 (19) |
F3—C1—C2—C3 | 25.7 (5) | O3—S1—C12—C13 | −30.1 (2) |
N1—C2—C3—C4 | −0.5 (4) | N3—S1—C12—C13 | 83.70 (19) |
C1—C2—C3—C4 | 178.4 (3) | O2—S1—C12—C11 | 18.9 (2) |
N1—N2—C4—C3 | −0.3 (4) | O3—S1—C12—C11 | 148.3 (2) |
C9—N2—C4—C3 | 170.6 (3) | N3—S1—C12—C11 | −98.0 (2) |
N1—N2—C4—C5' | −178.3 (7) | C11—C12—C13—C14 | 0.0 |
C9—N2—C4—C5' | −7.3 (8) | S1—C12—C13—C14 | 178.31 (19) |
N1—N2—C4—C5 | 176.9 (6) | C12—C13—C14—C9 | 0.0 |
C9—N2—C4—C5 | −12.1 (8) | C10—C9—C14—C13 | 0.0 |
C2—C3—C4—N2 | 0.5 (4) | N2—C9—C14—C13 | −179.3 (2) |
C2—C3—C4—C5' | 178.4 (7) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H1···O3i | 0.88 (1) | 2.00 (2) | 2.830 (4) | 158 (3) |
N3—H2···N1ii | 0.88 (1) | 2.17 (1) | 3.032 (4) | 170 (4) |
C8—H8···O2iii | 0.95 | 2.36 | 3.185 (7) | 145 |
C10—H10···O2iv | 0.95 | 2.44 | 3.092 (4) | 126 |
Symmetry codes: (i) x, y−1, z; (ii) −x+1, −y+1, −z+1; (iii) −x+3/2, y+1/2, −z+3/2; (iv) −x+3/2, y−1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | C14H10F3N3O3S |
Mr | 357.31 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 100 |
a, b, c (Å) | 16.0536 (13), 4.8173 (4), 20.6202 (15) |
β (°) | 110.728 (8) |
V (Å3) | 1491.4 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.27 |
Crystal size (mm) | 0.25 × 0.10 × 0.05 |
Data collection | |
Diffractometer | Agilent SuperNova Dual diffractometer with an Atlas detector |
Absorption correction | Multi-scan (CrysAlis PRO; Agilent, 2011) |
Tmin, Tmax | 0.935, 0.987 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6503, 3431, 2400 |
Rint | 0.051 |
(sin θ/λ)max (Å−1) | 0.651 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.069, 0.189, 1.06 |
No. of reflections | 3431 |
No. of parameters | 210 |
No. of restraints | 33 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.57, −0.63 |
Computer programs: CrysAlis PRO (Agilent, 2011), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), X-SEED (Barbour, 2001) and DIAMOND (Brandenburg, 2006), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H1···O3i | 0.88 (1) | 2.00 (2) | 2.830 (4) | 158 (3) |
N3—H2···N1ii | 0.88 (1) | 2.17 (1) | 3.032 (4) | 170 (4) |
C8—H8···O2iii | 0.95 | 2.36 | 3.185 (7) | 145 |
C10—H10···O2iv | 0.95 | 2.44 | 3.092 (4) | 126 |
Symmetry codes: (i) x, y−1, z; (ii) −x+1, −y+1, −z+1; (iii) −x+3/2, y+1/2, −z+3/2; (iv) −x+3/2, y−1/2, −z+3/2. |
Footnotes
‡Additional correspondence author, e-mail: aasiri2@kau.edu.sa.
Acknowledgements
The authors are thankful to the Center of Excellence for Advanced Materials Research and the Chemistry Department at King Abdulaziz University for providing the research facilities. We also thank the Ministry of Higher Education (Malaysia) for funding structural studies through the High-Impact Research scheme (UM.C/HIR/MOHE/SC/12).
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.
The title CF3-derivatized sulfonamide (I), was investigated. in connection with on-going studies of sulfonamides, both biological (Croitoru et al., 2004; Dogruer et al., 2010) and crystallographic (Asiri et al., 2011; Asiri et al., 2012). In particular, fluoride in the form of a trifluoromethyl group, which has long been recognized in medicinal chemistry for its ability to alter the physico-chemical and biological characteristics of molecules (Fokin & Kolomiyets, 1988; Bonacorso et al., 2006), is featured in the new molecule to promote enhanced biological properties.
In (I), Fig. 1, the dihedral angle of 31.1 (2)° between the furanyl and pyrazole rings indicates a significant twist between these rings. Similarly, the dihedral angle of 55.58 (10)° between the pyrazole ring and the benzene ring to which it is connected indicates a significant twist. The amino-N3 atom occupies a position almost normal to the benzene ring, forming a N3—S1—C12—C13 torsion angle of 83.70 (19)°. This allows the participation of both N—H atoms in hydrogen bonding interactions.
One amino-H atom forms a hydrogen bond to the pyrazole-N2 atom of a centrosymmetrically related molecule to form an 18-membered {···HNSC4NN}2 synthon, Table 1. These are connected into a supramolecular chain via a N—H···O(sulfonamide) hydrogen bonding, Fig. 2 and Table 1. The second sulfonamide-O2 atom forms two C—H···O interactions, Table 1, to consolidate the chains into a supramolecular layers. No specific intermolecular interactions occur between the layers that stack along [1 0 1], Fig. 3.