Investigation of a privileged polymorphic motif: A dimeric ROY derivative

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

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


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 languageEnglish (US)
Pages (from-to)136-139
Number of pages4
JournalCrystal Growth and Design
Issue number1
StatePublished - Jan 2008

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