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Understanding the p-toluenesulfonamide / triphenylphosphine oxide crystal chemistry: a new 1:1 cocrystal and ternary phase diagram
Chemical and Environmental Science, University of Limerick, Ireland.
University of Cork, Ireland.
University of Cork, Ireland.
University of Cork, Ireland.
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2012 (English)In: Crystal Growth & Design, ISSN 1528-7483, E-ISSN 1528-7505, Vol. 12, no 2, 869-875 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2012. Vol. 12, no 2, 869-875 p.
Keyword [en]
Acetonitrile, Crystal chemistry, Dichloromethane, Solvents, Sulfur compounds
National Category
Chemical Sciences
URN: urn:nbn:se:kth:diva-87073DOI: 10.1021/cg201300eISI: 000300470600040OAI: diva2:501358

QC 20120913

Available from: 2012-02-14 Created: 2012-02-14 Last updated: 2012-09-13Bibliographically approved

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