Investigation of a privileged polymorphic motif: A dimeric ROY derivative

Katie M. Lutker; Zachary P. Tolstyka; Adam J. Matzger

doi:10.1021/cg700921w

Investigation of a privileged polymorphic motif: A dimeric ROY derivative

Katie M. Lutker, Zachary P. Tolstyka, Adam J. Matzger

Chemistry (Twin Cities)

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

Bis(5-methyl-2-[(2-nitrophenyl)amino]-3-thiophenecarbonitrilyl)acetylene, a derivative of the highly polymorphic compound 5-methyl-2-[(2-nitrophenyl)amino] -3-thiophenecarbonitrile (ROY) that possesses two chromophores electronically coupled through a triple bond, was found to be trimorphic. Structural data for two of these forms indicate that symmetry is maintained in one structure and broken in the other leading to spontaneous differentiation of the methyl-thiophenecarbonitrile units. This study contributes to the mounting evidence that ROY and its derivatives are particularly prone to polymorphism.

Original language	English (US)
Pages (from-to)	136-139
Number of pages	4
Journal	Crystal Growth and Design
Volume	8
Issue number	1
DOIs	https://doi.org/10.1021/cg700921w
State	Published - Jan 2008

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AB - Bis(5-methyl-2-[(2-nitrophenyl)amino]-3-thiophenecarbonitrilyl)acetylene, a derivative of the highly polymorphic compound 5-methyl-2-[(2-nitrophenyl)amino] -3-thiophenecarbonitrile (ROY) that possesses two chromophores electronically coupled through a triple bond, was found to be trimorphic. Structural data for two of these forms indicate that symmetry is maintained in one structure and broken in the other leading to spontaneous differentiation of the methyl-thiophenecarbonitrile units. This study contributes to the mounting evidence that ROY and its derivatives are particularly prone to polymorphism.

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Investigation of a privileged polymorphic motif: A dimeric ROY derivative

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