2,4-Difluorobenzaldehyde benzolyhydrazone and 2,4-dichlorobenzaldehyde benzoylhydrazone are isostructural at 120 K with Z = 2: complex sheets built from N-H…O, C-H…O and C-H…Pi(areno) hydrogen bonds

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Abstract

At 120 K, 2,4-difluoro­benzaldehyde benzoyl­hydrazone, C₁₄H₁₀­F₂N₂O, (I), and 2,4-dichloro­benzaldehyde benzoyl­hydrazone, C₁₄H₁₀Cl₂N₂O, (II), are isomorphous and isostructural in P2₁/n with Z‘ = 2. In each structure, eight independent hydrogen bonds, viz. two of N-HO type, five of C-HO type and one of C-H(arene) type, link the mol­ecules into complex sheets, within which two independent one-dimensional substructures can be identified.

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Keywords: None Document Type: Research Article DOI: http://dx.doi.org/10.1107/S0108270106001995 Publication date: 1 de Janeiro de 2006