Ferrocene Mono- and Di-Sulfonates as Building Blocks in Hydrogen-Bonded Networks
Jingli Xie A B E , Brendan F. Abrahams A , Tobias J. Zimmermann A B C , Arindam Mukherjee A D and Anthony G. Wedd A B EA School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia.
B Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, VIC 3010, Australia.
C Present address: Department of Chemistry, Universität Tübingen, Germany.
D Present address: Department of Chemistry, University of Edinburgh, UK.
E Corresponding authors. Email: xij@unimelb.edu.au; agw@unimelb.edu.au
Australian Journal of Chemistry 60(8) 578-582 https://doi.org/10.1071/CH07072
Submitted: 9 March 2007 Accepted: 22 May 2007 Published: 9 August 2007
Abstract
The structure directing influence of a variety of hydrogen-bonding cations on the arrangement of ferrocene mono- and di-sulfonate anions within the crystalline state is reported. The crystal structures of four different networks of composition A[Fe(η5-C5H5)(η5-C5H4SO3)] (A = imidazolium or N-methylimidazolium) and B2[Fe(η5-C5H4SO3)2] (B = imidazolium or pyridinium) are presented. The imidazolium ions are able to act as hydrogen bond bridges in the generation of layer-type structures similar to those found for guanidinium analogues. Secondary bonding interactions exert a powerful structure-directing influence within these networks even though the individual interactions appear to be rather weak.
Acknowledgment
We gratefully acknowledge financial support by the Australian Research Council.
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