Self-assembly of novel fluorescent silole derivatives into different supramolecular aggregates: fibre, liquid crystal and monolayer
Self-assembly of novel fluorescent silole derivatives into different supramolecular aggregates: fibre, liquid crystal and monolayer
复制标题
新型荧光噻咯衍生物自组装成不同的超分子聚集体：纤维、液晶和单层
作者：
合成了2，3，4，5-四苯基硅烷官能化的长链烷氧基二酰胺基有机凝胶剂(1a和1b)。硅烷衍生物只在碳氢化合物溶剂中诱导凝胶，在凝胶状态下表现出聚集诱导发射(AIE)，而在溶液中的发射非常弱。偏光显微镜(POM)和场发射扫描电子显微镜(FE-SEM)研究表明，干凝胶形成了纤维状结构。FT-IR和吸收光谱研究表明，氢键和π堆积作用是有机凝胶形成的主要驱动力。差示扫描量热法(DSC)和偏光显微镜(POM)研究表明，化合物1a和1b在较宽的温度范围内都有稳定的液晶相。有趣的是，这两种化合物在HOPG表面也都得到了均匀有序的单分子膜。新的硅胶衍生物非常独特，因为它们可以自组装成一维(纤维)、三维(液晶)甚至二维(分子单层)聚集体。
Two novel organogelators based on 2,3,4,5-tetraphenylsilole functionalized with long-chain alkoxydiacylamido platforms (1a and 1b) were synthesized. The silole derivatives induced gelation of only hydrocarbon solvents and showed aggregation-induced emission (AIE) in the gel state, in contrast to very weak emission in solution. The polarized optical microscopic (POM) and field emission scanning electron microscopy (FE-SEM) studies exhibited that the xerogels formed fibrous structures. Hydrogen bonding and π-stacking interactions were the main driving forces for the formation of organogels, based on the FT-IR and absorption investigations. Differential scanning calorimetry (DSC) and POM studies indicated that both compounds 1a and 1b exhibited stable liquid crystalline (LC) phases over a wide temperature range. It is interesting that uniform and well-ordered monolayers were also obtained for both compounds on the HOPG surface. The new silole derivatives are quite unique because they can self-assemble into one-dimensional (fibres), three-dimensional (liquid crystal) and even two-dimensional (molecular monolayer) aggregates.
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DOI：
10.1021/la051087a
发表时间：
2005-08
期刊：
Langmuir : the ACS journal of surfaces and colloids
影响因子：
--
作者：
Xunyu Yang;Z. Mu;Zhiqiang Wang;Xi Zhang;Jia Wang;Yue Wang
通讯作者：
Xunyu Yang;Z. Mu;Zhiqiang Wang;Xi Zhang;Jia Wang;Yue Wang
影响因子：
4.9
作者：
Sheng Wang;W. Shen;Yanli Feng;H. Tian
通讯作者：
Sheng Wang;W. Shen;Yanli Feng;H. Tian
影响因子：
15
作者：
An, BK;Lee, DS;Park, SY
通讯作者：
Park, SY
DOI：
10.1002/chin.199811319
发表时间：
1998-03
期刊：
ChemInform
影响因子：
--
作者：
P. Terech;R. Weiss
通讯作者：
P. Terech;R. Weiss
影响因子：
15
作者：
E. Terazzi;S. Torelli;G. Bernardinelli;J. Rivera;J. Benech;C. Bourgogne;B. Donnio;D. Guillon;D. Imbert;J. Bünzli;André Pinto;D. Jeannerat;C. Piguet
通讯作者：
E. Terazzi;S. Torelli;G. Bernardinelli;J. Rivera;J. Benech;C. Bourgogne;B. Donnio;D. Guillon;D. Imbert;J. Bünzli;André Pinto;D. Jeannerat;C. Piguet