N′-[1-(5-Chloro-2-hydroxyphenyl)methylidene]isonicotinohydrazide

Abstract

Key indicatorsSingle-crystal X-ray study T = 298 K Mean (C-C) = 0.003 Å R factor = 0.045 wR factor = 0.117 Data-to-parameter ratio = 16.0For details of how these key indicators were automatically derived from the article, see

Synthesis and characterization of a series of isoniazid hydrazones. Spectroscopic and theoretical study

“…CeN bond lengths within the pyridinium group are 1.340(4) and 1.330(4) Å (3), and 1.336(4) and 1.329(4) Å (4). Bond distances in the bromidecontaining organic cation are in general agreement with the corresponding ones reported in the literature for the neutral (deprotonated) moiety [35,36].…”

Crystal structure of 2-[1-(2-chlorophenyl)-methylidene]hydrazino-1-(3,4- dihydroxyphenyl)ethanone monohydrate, C14H11ClN2O3 · H2O

“…The Schiff base molecule displays a trans configuration with respect to the C=N and C-N bonds. All the bond lengths are within normal ranges and comparable to the values observed in the similar compounds [10][11][12]. The dihedral angle between the two benzene rings is 23.9(2)°.…”

N′-[1-(5-Bromo-2-hydroxyphenyl)methylidene]isonicotinohydrazide

“…The background to this investigation is set out in the preceding paper (Yang, 2006). The structure of the title compound, (I), is reported here.…”