Binary Supramolecular Gel of Achiral Azobenzene with a Chaperone Gelator: Chirality Transfer, Tuned Morphology, and Chiroptical Property

CORC > 化学研究所 > 中国科学院化学研究所 > 胶体、界面与化学热力学实验室

	Binary Supramolecular Gel of Achiral Azobenzene with a Chaperone Gelator: Chirality Transfer, Tuned Morphology, and Chiroptical Property
	Ji, Lukang 1,2; Ouyang, Guanghui 1; Liu, Minghua 1,2,3,4
刊名	LANGMUIR
	2017-10-31
卷号	33 期号:43 页码:12419-12426
英文摘要	Binary supramolecular gels based on achiral azobenzene derivatives and a chiral chaperone gelator, long-alkyl-chain-substituted L-Histidine (abbreviated as LHC18) that could assist many nongelling acids in forming gels, were investigated in order to fabricate the chiroptical gel materials in a simple way. It was found that although the carboxylic acid-terminated achiral azobenzene derivatives could not form gels in any solvents, when mixed with LHC18 they formed the co-gels and self-assembled into various morphologies ranging from nanotubes and loose nanotubes to nanosheets, depending on the substituent groups on the azobenzene moiety. The ether linkage and the number of carboxylic acid groups attached to the azobenzene moiety played important roles. Upon gel formation, the localized molecular chirality in LHC18 could be transferred to the azobenzene moiety. Combined with the trans-cis isomerization of the azobenzene, optically and chiroptically reversible gels were generated. It was found that the gel based on azobenzene with two carboxylic acid groups and ether linkages showed clear optical reversibility but less chiroptical reversibility, whereas the gel based on azobenzene with one carboxylic acid and an ether linkage showed both optical and chiroptical reversibility. Thus, new insights into the relationship among the molecular structures of the azobenzene, self-assembled nanostructures in the gel and the optical and chiroptical reversibility were disclosed.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/39149]
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.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci,CAS Res Educ Ctr Excelle, CAS Key Lab Colloid Interface & Chem Thermodynam, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Natl Ctr Nanosci & Technol, Key Lab Nano Syst & Hierarch Fabricat, Beijing 100190, Peoples R China 4.Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China
推荐引用方式 GB/T 7714	Ji, Lukang,Ouyang, Guanghui,Liu, Minghua. Binary Supramolecular Gel of Achiral Azobenzene with a Chaperone Gelator: Chirality Transfer, Tuned Morphology, and Chiroptical Property[J]. LANGMUIR,2017,33(43):12419-12426.
APA	Ji, Lukang,Ouyang, Guanghui,&Liu, Minghua.(2017).Binary Supramolecular Gel of Achiral Azobenzene with a Chaperone Gelator: Chirality Transfer, Tuned Morphology, and Chiroptical Property.LANGMUIR,33(43),12419-12426.
MLA	Ji, Lukang,et al."Binary Supramolecular Gel of Achiral Azobenzene with a Chaperone Gelator: Chirality Transfer, Tuned Morphology, and Chiroptical Property".LANGMUIR 33.43(2017):12419-12426.