title: Optically Active Liquid Crystalline Polyoxometalates via Electrostatic Encapsulation with Cholesterol-Containing Amphiphile.
abstract: A novel cholesterol-containing amphiphile was designed and prepared in the study, which is a room-temperature ionic liquid crystal over a broad temperature range with pronounced chiroptical properties. Four types of inorganic polyoxometalates (PMs) with different numbers of charges were encapsulated by the chiral amphiphile. The incorporation of chiral organic cations triggers achiral PMs in the complexes to show induced chirality through intermolecular interactions, as demonstrated by circular dichroism spectroscopy. The electrostatic encapsulation with mesomorphic promoters provides the inorganic PMs with liquid crystalline behavior, characterized by differential scanning calorimetry, polarized optical microscopy, and X-ray diffraction. The strategy applied herein represents a unique example of liquid crystalline PM complexes with optical activity.
authors.affiliation: Institute of Applied Chemistry, Shanxi University, Taiyuan, 030006, China. jingzhang@sxu.edu.cn.|State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, China. jingzhang@sxu.edu.cn.
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, China.
authors.forename: Jingfang
authors.initials: J
authors.lastname: Li
authors.affiliation: College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Yuan
authors.affiliation: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, China.
authors.forename: Guohua
authors.initials: G
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, China.
authors.forename: Bao
authors.initials: B
authors.lastname: Li
authors.affiliation: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, China.
authors.forename: Wen
authors.initials: W
authors.lastname: Li
authors.affiliation: College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China.
authors.forename: Xuehong
authors.initials: X
authors.lastname: Wei
authors.affiliation: College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China.
authors.forename: Xin-E
authors.initials: XE
authors.lastname: Duan
authors.affiliation: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, China. wulx@sxu.edu.cn.
authors.forename: Lixin
authors.initials: L
authors.lastname: Wu
keywords: amphiphiles; liquid crystals; optical activity; polyoxometalates; supramolecular self-assembly