pi-Stacked hydrogen-bonded chains of rings in 2,4-difluorobenzaldehyde isonicotinoylhydrazone and hydrogen-bonded sheets in 2,3-dichlorobenzaldehyde isonicotinoylhydrazone

S M S V Wardell, M V N de Souza, M D Ferreira, T R A Vasconcelos, J N Low, C Glidewell

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14 Citations (Scopus)

Abstract

The difluorinated ring in 2,4-difluorobenzaldehyde isonicotinoylhydrazone, C13H9F2N3O, (I), is disordered over two sets of sites with unequal occupancy. The molecules of (I) are linked by a combination of N-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds into chains of rings, which are linked into sheets by a single pi-pi stacking interaction. In 2,3-dichlorobenzaldehyde isonicotinoylhydrazone, C13H9Cl2N3O, (II), the molecules are linked by a combination of N-H center dot center dot center dot N, C-H center dot center dot center dot N and C-H center dot center dot center dot O hydrogen bonds into sheets of R-4(4)(14) and R-4(4)(26) rings.

Original languageEnglish
Number of pages4
JournalActa Crystallographica Section C-Crystal Structure Communications
Volume61
DOIs
Publication statusPublished - Oct 2005

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