文献类型：期刊文献

英文题名：Self-assembly, aggregates morphology and ionic liquid crystal of polyoxometalate-based hybrid molecule: From vesicles to layered structure

作者：Tan, Chunxia[1]

第一作者：谈春霞

通信作者：Tan, CX[1]

机构：[1]Gansu Univ Chinese Med, Lanzhou 730000, Gansu, Peoples R China

第一机构：甘肃中医药大学

通信机构：[1]corresponding author), Gansu Univ Chinese Med, Lanzhou 730000, Gansu, Peoples R China.|[10735]甘肃中医药大学;

年份：2017

卷号：1148

起止页码：34

外文期刊名：JOURNAL OF MOLECULAR STRUCTURE

收录：;EI(收录号：20172903951223);Scopus(收录号：2-s2.0-85023599870);WOS:【SCI-EXPANDED(收录号:WOS:000409150300006)】；

基金：The Authors acknowledges support from the Gansu Provincial Natural Science Foundation (2016 Gansu Science and Technology Support Project, Award number: 1610RJZA072).

语种：英文

外文关键词：Organic-polyoxometalate; Self-assembly; Morphology; Layered structure; Ionic liquid-crystal

摘要：Polyoxometalate anions [SBA(12)O(40)]4 were encapsulated by four 1, 3-dioctadecylimidazolium cations (labeled as L+) driven by electrostatic interaction to obtain hybrid molecule L-4[SiW12O40]. The composition and ingredients of L-4[SiW12O40] were confirmed by infrared spectroscopy (IR) and elemental analysis. In mixedsolvent (chloroform/methanol volume of 4:1), the self-assembled aggregates of L-4[SiW12O40] appear at multilamllar vesicles under optical microscopy and the micron-size bulky flower-like aggregates in scanning electron microscopy (SEM). However, Transmission electron microscopy (TEM) images and small-angle X-ray diffraction (XRD) of L-4[SiW12O40] demonstrate that spherical aggregations in mixed-solvent are densely packed by flakes, which can self-assembly into ordered one dimension layered structure. In addition, L-4[SiW12O40] shows typical thermotropic liquid crystal behavior similar to imidazole cations. The ordered self-assembly hybrid molecule materials based on organic-polyoxometalate ionic liquids would be exciting branch of nanostructure functional materials. (C) 2017 Elsevier B.V. All rights reserved.