期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 131, 期 16, 页码 5986-5993出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja9001376
关键词
-
资金
- Program of Innovative Research Team of Soochow University
- Natural Science Foundation of Jiangsu Province [BK2007047]
- National Natural Science Foundation of China [20871087]
A pair of chiral bola-type enantiomers, LL-12PyBr and DD-12PyBr, was synthesized. They can cause physical gels in pure water. Sol-gel transcriptions were carried out to control mesoporous 1,4-phenylene-silica nanostructures and helicity using the organic self-assemblies of these amphiphiles as templates. Under acidic conditions, left-handed helical 1,4-phenylene-silica bundles were prepared using the self-assemblies of LL-12PyBr as templates. Additionally, right-handed helical silica and 1,4phenylene-silica bundles were prepared using the self-assemblies of DD-12PyBr as templates. Under basic conditions, 1,4-phenylene-silica bundles were also obtained. However, it is hard to determine the handedness. For all of the 1,4-phenylene-silica bundles, it is interesting to find that the aromatic rings are packing in helix within the wall of the pore channels. Powder X-ray diffraction patterns indicated that the aromatic rings of 1,4-phenylene-silica bundles prepared under basic conditions showed a greater degree of order than those of 1,4-phenylene-silica bundles prepared under acidic conditions. Moreover, helical silica, 1,3-phenylene-silica, ethene-silica, and ethane-silica bundles were also prepared using the self-assemblies LL-12PyBr and DD-12PyBr as templates.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据