2-(4-Chlorophenyl)-5-(4-nitrophenyl)-4,7-dihydropyrazolo[1,5-a]pyrimidine-3,6-dicarbaldehyde: a chain of rings built from N-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds

Jorge Trilleras, Jairo Quiroga, John N. Low, Justo Cobo, Christopher Glidewell

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

In the title compound, C20H13ClN4O4, the six-membered heterocyclic ring is planar and the molecular dimensions provide evidence for polarization of the molecular-electronic structure. Molecules are linked into a chain of rings 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, but the nitro group does not participate in the supramolecular aggregation. This study illustrates the marked influence of peripheral substituents on the pattern of hydrogen-bonded aggregation in compounds of this type.

Original languageEnglish
Number of pages3
JournalActa Crystallographica Section C-Crystal Structure Communications
Volume64
DOIs
Publication statusPublished - Jun 2008

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