Issue 24, 2003

Polymorphism in hydrogen bonded frameworks; cyanuric acid–bis(4-pyridyl)ethene adducts

Abstract

The crystal structures of two polymorphic hydrogen bonded networks formed by cyanuric acid (CA) and bis(4-pyridyl)ethene (bpe) are described. In both instances two-dimensional sheets are constructed from CA chains that are cross-linked by bpe moieties. Although all the sheets in both compounds adopt essentially equivalent hydrogen bonding connectivity, two different sheet arrangements are observed due to subtle variations in the N–H⋯O hydrogen bonds between CA molecules. In one polymorph only one type of sheet is observed while in the other both sheet arrangements occur.

Graphical abstract: Polymorphism in hydrogen bonded frameworks; cyanuric acid–bis(4-pyridyl)ethene adducts

Supplementary files

Article information

Article type
Paper
Submitted
25 Mar 2003
Accepted
14 Apr 2003
First published
06 May 2003

CrystEngComm, 2003,5, 134-136

Polymorphism in hydrogen bonded frameworks; cyanuric acidbis(4-pyridyl)ethene adducts

S. A. Barnett, A. J. Blake and N. R. Champness, CrystEngComm, 2003, 5, 134 DOI: 10.1039/B303338D

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