一种特殊多态性基序的研究：一种二聚体ROY衍生物。
Investigation of a Privileged Polymorphic Motif: a Dimeric ROY Derivative.
作者信息
Lutker Katie M, Tolstyka Zachary P, Matzger Adam J
机构信息
Department of Chemistry, University of Michigan, 930 N. University, Ann Arbor, MI 48109.
出版信息
Cryst Growth Des. 2008;8(1):136-139. doi: 10.1021/cg700921w.
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 indicates 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.
摘要
双（5-甲基-2-[(2-硝基苯基)氨基]-3-噻吩甲腈基）乙炔，是高度多晶型化合物5-甲基-2-[(2-硝基苯基)氨基]-3-噻吩甲腈（ROY）的衍生物，该衍生物具有通过三键电子耦合的两个发色团，被发现有三种晶型。其中两种晶型的结构数据表明，一种结构中对称性得以保持，而另一种结构中对称性被打破，导致甲基噻吩甲腈单元自发分化。这项研究为越来越多的证据提供了补充，即ROY及其衍生物特别容易出现多晶型现象。
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