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. 2009 Jan 14;65(Pt 2):o295.
doi: 10.1107/S160053680900110X.

(E)-N'-(4-Pyridylmethyl-ene)-4-(8-quinol-yl-oxy)butanohydrazide 0.25-hydrate

Min-E Chen  1 , Jia-Ming Li
Affiliations

(E)-N'-(4-Pyridylmethyl-ene)-4-(8-quinol-yl-oxy)butanohydrazide 0.25-hydrate

Min-E Chen et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The asymmetric unit of the title compound, C(19)H(18)N(4)O(2)·0.25H(2)O, contains two organic mol-ecules and a solvent water mol-ecule with 50% occupancy. The two molecules differ in their conformations: in one mol-ecule it is (+)gauche-trans-trans-(+)gauche-trans, whereas in the other it is (-)gauche-trans-trans-(-)gauche-trans. The dihedral angles between the pyridine ring and the quinoline ring system are 67.4 (3) and 68.0 (2)°. Mol-ecules are linked into a supra-molecular two-dimensional array via N-H⋯N hydrogen bonds, with each partially occupied water mol-ecule connected via an O-H⋯O hydrogen bond. C-H⋯O inter-actions are also present.

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Figures

Fig. 1.
Fig. 1.
The molecular structures of the two independent molecules and the water molecule of crystallization (50% site occupancy) in (I), showing atom numbering scheme and displacement ellipsoids at the 30% probability level.
See this image and copyright information in PMC

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