Remarkable polymorphism in gels of new azobenzene bis-urea gelators

被引：105
作者：
van der Laan, S [1 ]
Feringa, BL [1 ]
Kellogg, RM [1 ]
van Esch, J [1 ]
机构：
[1] Univ Groningen, Organ Chem Lab, Stratingh Inst, NL-9747 AG Groningen, Netherlands
来源：
LANGMUIR | 2002年 / 18卷 / 19期
关键词：
D O I：
10.1021/la025561d
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Azobenzenes substituted with two urea groups, and especially the 2,2'-disubstituted azobenzenes, form thermoreversible gels with a wide range of organic solvents at concentrations which are in some cases even as low as 0.2 mM. Most remarkably, the 2,2'-disubstituted azobenzene gelator can form two different morphs, which is governed by the properties of the solvent and kinetic factors.
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收藏
页码：7136 / 7140
页数：5
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