Multiresponsive Chiroptical Switch of an Azobenzene-Containing Lipid: Solvent, Temperature, and Photoregulated Supramolecular Chirality

被引：125

作者：

Duan, Pengfei ^{[1
]}

Li, Yuangang ^{[2
]}

Li, Liangchun ^{[3
,4
]}

Deng, Jingen ^{[3
,4
]}

Liu, Minghua ^{[1
]}

机构：

[1] Chinese Acad Sci, BNLMS, Key Lab Colloid, Inst Chem, Beijing 100190, Peoples R China

[2] Xian Univ Sci & Technol, Coll Chem & Chem Engn, Xian 710054, Peoples R China

[3] Chinese Acad Sci, Natl Engn Res Ctr Chiral Drugs, Chengdu 610041, Peoples R China

[4] Chinese Acad Sci, Key Lab Asymmetr Synth, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2011年 / 115卷 / 13期

基金：

中国国家自然科学基金;

关键词：

GEL-SOL TRANSITION; DENSITY FUNCTIONALS; MOLECULES; THERMOCHEMISTRY; AMPLIFICATION; HELICITY; GELATORS; GELATION; PROTEIN; DESIGN;

D O I：

10.1021/jp110636b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An azobenzene-containing lipid was designed as a functional organogelator, and its self-assembly as well as the chiroptical properties were investigated. The gelator shows good gelation ability in various organic solvents ranging from polar to nonpolar solvents. Although the molecule did not show a CD signal in the absorption band of azobenzene in solution, supramolecular chirality was observed upon gel formation. Moreover, the supramolecular chirality exhibited a multire-sponse to temperature, photoirradiation, and the solvent polarity. Particularly, positive supramolecular chirality was observed in polar solvents, while it inverted to a negative one in nonpolar solvents. All the responses in relating to the supramolecular chirality were reversible and thus produced a multiresponsive chiroptical switch.

引用

页码：3322 / 3329

页数：8

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