Nicotinaldehyde [2,8-bis(trifluoromethyl)quinolin-4-yl]hydrazone monohydrate

作者：Devarajegowda H C^*; Vepuri Suresh Babu; VinduVahini M; Kavitha H D; Arunkashi H K

来源：Acta Crystallographica Section E-Structure Reports Online, 2010, 66: O2237-U1673.

DOI：10.1107/S1600536810030862

In the title compound, C(17)H(10)F(6)N(4)center dot H(2)O, the pyridine ring is not coplanar with the quinoline ring system; the dihedral angle between the two planes is 21.3 (1)degrees. One of the trifluoromethyl group is disordered over two orientations with occupancies of 0.70 (1) and 0.30 (1). The water molecule is disordered over two positions with occupancies of 0.76 (1) and 0.24 (1). In the crystal, the water molecule is linked to the main molecule via N-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds, and inversion-related pairs are linked via O-H center dot center dot center dot N hydrogen bonds. In addition, a weak pi-pi interaction is observed between the pyridine ring and the pyridine ring of the quinoline unit, with a centroid-centroid distance of 3.650 (2) angstrom.

• 出版日期2010-9