8-Methyl-5–oxo-5,6-dihydrodipyrido[1,2-a:3',2'-e]-pyrimidin-11-ium chloride trihydrate 120k

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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-HO and C-HO hydrogen bonds into chains of rings, which are linked into sheets by a single – stacking inter­action. In 2,3-dichloro­benzaldehyde isonicotinoylhydrazone, C₁₃H₉Cl₂N₃O, (II), the mol­ecules are linked by a combination of N-HN, C-HN and C-HO hydrogen bonds into sheets of R₄⁴(14) and R₄⁴(26) rings.

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Keywords: None Document Type: Research Article DOI: http://dx.doi.org/10.1107/S0108270105029136 Publication date: 1 de Janeiro de 2005