Issue 3, 2007

cis- and trans-Bis(benzoylacetonato)pyridinecopper(ii): co-crystallisation of isomers and reversible pyridine loss with retention of crystallinity

Abstract

The pyridine adduct of bis(benzoylacetonato-O,O′)copper(II) crystallises in both its cis- and trans-isomers within the same crystal. Copper(II) exhibits square pyramidal coordination geometry in both isomers with weak coordination of pyridine. The square planes of the isomers are mutually orthogonal, forming a square grid, in the channels of which the pyridine molecules are stacked, approximately perpendicular to the c-axis. Pyridine is readily lost from crystals unprotected by pyridine solvent, forming a crystalline powder. This powder absorbs pyridine vapour to reform microcrystalline bis(benzoylacetonato)pyridinecopper(II).

Graphical abstract: cis- and trans-Bis(benzoylacetonato)pyridinecopper(ii): co-crystallisation of isomers and reversible pyridine loss with retention of crystallinity

Supplementary files

Article information

Article type
Letter
Submitted
26 Oct 2006
Accepted
11 Jan 2007
First published
01 Feb 2007

New J. Chem., 2007,31, 344-347

cis- and trans-Bis(benzoylacetonato)pyridinecopper(II): co-crystallisation of isomers and reversible pyridine loss with retention of crystallinity

A. Lennartson, M. Håkansson and S. Jagner, New J. Chem., 2007, 31, 344 DOI: 10.1039/B615579K

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