Inclusion compounds of L,D-dipeptide with small sulfoxides:: flexible sheet structure of (S)-phenylglycyl-(R)-phenylglycine
Inclusion compounds of L,D-dipeptide with small sulfoxides:: flexible sheet structure of (S)-phenylglycyl-(R)-phenylglycine
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DOI：
10.1016/j.tet.2007.07.061
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发表时间：
2007-10-01
期刊：
影响因子：
2.1
通讯作者：
Ogura, Katsuyuki
中科院分区：
文献类型：
--
作者：
Akazome, Motohiro;Hirabayashi, Atsushi;Ogura, Katsuyuki
异手性L，D-二肽（S）-苯甘氨酰-（R）-苯甘氨酸（SR-1）与一些小的二烷基亚砜形成包合物。通过单晶X射线分析，我们观察到单层结构，其中SR-1分子平行排列以构建波浪片。亚砜通过与SR-1的+NH3形成氢键而被容纳在SR-1单层之间的通道空腔中。值得注意的是，SR-1的片是如此柔性，以响应于所包括的亚砜的体积而改变其波浪度。此外，我们可以分析没有任何亚砜的晶体SR-1的结构，其具有双层结构。(c)2007年由Elsevier Ltd.出版
A heterochiral L,D-dipeptide, (S)-phenylglycyl-(R)-phenylglycine (SR-1), formed inclusion compounds with some small dialkyl sulfoxides. By their single-crystal X-ray analyses, we observed monolayer structures, where SR-1 molecules are arranged in parallel to construct a wavy sheet. The sulfoxides were accommodated in a channel cavity between the monolayers of SR-1 by hydrogen bonding with +NH3 of SR-1. Notably, the sheet of SR-1 is so flexible to change its wavy degree in response to the volume of the included sulfoxides. Furthermore, we could analyze the structure of crystalline SR-1 without any sulfoxide, which has a bilayer structure. (c) 2007 Published by Elsevier Ltd.