1-{1-[2,8-Bis(trifluoro-meth-yl)-4-quin-olyl]-5-methyl-1H-1,2,3-triazol-4-yl}ethanone

Abstract

There are two independent mol-ecules in the asymmetric unit of the title compound, C(16)H(10)F(6)N(4)O. The triazole ring is not coplanar with the quinoline ring system; the dihedral angle between the two planes being 74.47 (12) and 63.97 (13)° in the two mol-ecules. The crystal structure is characterized by inter-molecular C-H⋯F, C-H⋯N and C-H⋯O hydrogen bonding. Weak intra-molecular C-H⋯F inter-actions are observed. Disorder is observed in two F atoms of one of the trifluoro-methyl groups of one independent mol-ecule [occupancy ratios 0.77 (3):0.23 (3) and 0.77 (4):0.23 (4)] and in all three F atoms of one of the trifluoro-methyl groups of the second independent mol-ecule [occupancy ratios 0.520 (14):0.480 (14), 0.615 (17):0.385 (17) and 0.783 (11):0.217 (11)]. The O atom is also disordered over two positions with occupancies of 0.60 (13) and 0.40 (13) in the first mol-ecule.

Fig. 1.

The molecular structure of the title compound. Displacement ellipsoids are drawn at the 50% probability level. Hydrogen atoms are shown as spheres of arbitrary radius and showing intramolecular hydrogen bonds as dashed lines.

Fig. 2.

Packing of the molecules showing hydrogen bonds as dashed lines.