Aggregation and supramolecular chirality of achiral amphiphilic metalloporphyrins

doi:10.1016/j.jcis.2008.06.049

CORC > 化学研究所 > 中国科学院化学研究所

	Aggregation and supramolecular chirality of achiral amphiphilic metalloporphyrins
	Yu, Wei 1,2; Li, Zhanshuang 2; Wang, Tianyu 1; Liu, Minghua 1
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2008-10-15
卷号	326 期号:2 页码:460-464
关键词	Lb Film Supramolecular Chirality Aggregation Metalloporphyrin
ISSN号	0021-9797
DOI	10.1016/j.jcis.2008.06.049
英文摘要	Metalloporphyrin derivatives with three hydrophobic dodecyl chains and a hydrophilic ester or carboxylic acid substituent were designed in order to clarify the effect of the central metal ions on the aggregation as well as the supramolecular chirality in the Langmuir-Schaefer films. All the metalloporphyrins showed good spreading behavior on water surface and can be transferred onto solid substrates. The transferred films were characterized by a variety of methods including UV-visible spectroscopy, circular dichroism (CID) spectroscopy, FTIR spectroscopy, atomic force microscopy (AFM) and scanning electron microscope (SEM) measurements. It has been found that the copper derivative forms J-aggregates as well as H-aggregates in the film. Moreover, the film showed strong CD signals. Change from the ester substitution to carboxylic acid caused the decrease of the supramolecular chirality. On the contrary, the zinc derivative showed only a negligible CD signal although the corresponding free base could assemble into a chiral assembly. A possible mechanism for the subtle relationship between supramolecular chirality and molecular structures has been proposed. (c) 2008 Elsevier Inc. All rights reserved.
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000259243600023
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/64743]
专题	中国科学院化学研究所
通讯作者	Wang, Tianyu
作者单位	1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China 2.Harbin Engn Univ, Sch Mat Sci & Chem Engn, Harbin 150001, Peoples R China
推荐引用方式 GB/T 7714	Yu, Wei,Li, Zhanshuang,Wang, Tianyu,et al. Aggregation and supramolecular chirality of achiral amphiphilic metalloporphyrins[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2008,326(2):460-464.
APA	Yu, Wei,Li, Zhanshuang,Wang, Tianyu,&Liu, Minghua.(2008).Aggregation and supramolecular chirality of achiral amphiphilic metalloporphyrins.JOURNAL OF COLLOID AND INTERFACE SCIENCE,326(2),460-464.
MLA	Yu, Wei,et al."Aggregation and supramolecular chirality of achiral amphiphilic metalloporphyrins".JOURNAL OF COLLOID AND INTERFACE SCIENCE 326.2(2008):460-464.