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.

引用

页码：7136 / 7140

页数：5