Multiple-Stimulus-Responsive Supramolecular Gels and Regulation of Chiral Twists: The Effect of Spacer Length

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	Multiple-Stimulus-Responsive Supramolecular Gels and Regulation of Chiral Twists: The Effect of Spacer Length
	Miao, Wangen 1; Yang, Dong 2; Liu, Minghua 2
刊名	CHEMISTRY-A EUROPEAN JOURNAL
	2015-05-11
卷号	21 期号:20 页码:7562-7570
关键词	chiral twists gels L-glutamic gelators self-assembly supramolecular chirality
英文摘要	A new class of homologous gelators, LG(12)-(CH2)(n)-BSA, composed of bipyridinyl groups, L-glutamic moieties having double dodecyl chains, and linked alkyl spacers with different lengths were synthesized. It was found that these gelators could immobilize medium-polarity solvents readily and the behaviors of these gels showed a dependence on the spacer length. Of all the gels, the LG(12)-(CH2)(11)-BSA gels exhibited self-healing property and multiple-stimulus responsibility, such as heating, shaking, and sonication. The investigation of CD spectra indicated that the supramolecular chirality, which was attributed to the chiral transfer from the chiral center to the assemblies, was also closely related to the length of methylene spacers. The longer the alkyl spacers, the weaker the transmitted supramolecular chirality. Only LG(12)-(CH2)(1)-BSA gelators, which had the shortest spacers, formed right-handed nanoscale chiral twists owing to crowded hydrogen bonding interactions. Moreover, the high-polarity solvent DMF was found to be able to regulate the chiral twist as well as its pitch length readily.
收录类别	SCI
语种	英语
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/28105]
专题	化学研究所_胶体、界面与化学热力学实验室
作者单位	1.Lingnan Normal Univ, Sch Chem & Chem Engn, Inst Phys Chem, Dev Ctr New Mat Engn & Technol Univ Guangdong, Zhanjiang 524048, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Key Lab Colloid Interface & Chem Thermodynam, Inst Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Miao, Wangen,Yang, Dong,Liu, Minghua. Multiple-Stimulus-Responsive Supramolecular Gels and Regulation of Chiral Twists: The Effect of Spacer Length[J]. CHEMISTRY-A EUROPEAN JOURNAL,2015,21(20):7562-7570.
APA	Miao, Wangen,Yang, Dong,&Liu, Minghua.(2015).Multiple-Stimulus-Responsive Supramolecular Gels and Regulation of Chiral Twists: The Effect of Spacer Length.CHEMISTRY-A EUROPEAN JOURNAL,21(20),7562-7570.
MLA	Miao, Wangen,et al."Multiple-Stimulus-Responsive Supramolecular Gels and Regulation of Chiral Twists: The Effect of Spacer Length".CHEMISTRY-A EUROPEAN JOURNAL 21.20(2015):7562-7570.