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Understanding the p-toluenesulfonamide/triphenylphosphine oxide crystal chemistry: a new 1:1 cocrystal and ternary phase diagram
Croker, Denise M.; Foreman, Michael E.; Hogan, Bridget N.; Maguire, Nuala M.; Elcoate, Curtis J.; Hodnett, Benjamin K.; Maguire, Anita R.; Rasmuson, Ake C.; Lawrence, Simon E.
A novel 1:1 cocrystal between p-toluenesulfonamide and triphenylphosphine oxide has been prepared and structurally characterized. This 1:1 cocrystal was observed to form during solid state grinding experiments, with subsequent formation of a known 3:2 cocrystal in the presence of excess sulfonamide. Both cocrystals are stable in the solid state. The ternary phase diagram for the two coformers was constructed in two different solvents: acetonitrile and dichloromethane. Examination of these diagrams clarified solution crystallization of both the newly discovered 1:1 cocrystal and the previously reported 3:2 cocrystal, and identified regions of stability for each cocrystal in each solvent. The choice of solvent was found to have a significant effect on the position of the solid state regions within a cocrystal system.
Keyword(s): Crystallography; Liquid crystals; Cocrystals; Crystallization
Publication Date:
2012
Type: Journal article
Peer-Reviewed: Yes
Language(s): English
Institution: University College Cork
Funder(s): Science Foundation Ireland
Citation(s): Croker, Denise M., Foreman, Michael E., Hogan, Bridget N., Maguire, Nuala M., Elcoate, Curtis J., Hodnett, Benjamin K., Maguire, Anita R., Rasmuson, Ake C., Lawrence, Simon E. (2012) 'Understanding the p-Toluenesulfonamide/Triphenylphosphine Oxide Crystal Chemistry: A New 1:1 Cocrystal and Ternary Phase Diagram'. Crystal Growth & Design, 12 (2):869-875. http://pubs.acs.org/doi/abs/10.1021/cg201300e
Publisher(s): American Chemical Society
File Format(s): application/pdf
Related Link(s): http://pubs.acs.org/doi/abs/10.1021/cg201300e
First Indexed: 2013-01-31 05:33:26 Last Updated: 2016-10-14 06:28:53