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	Studies on the interaction of achiral cationic pseudoisocyanine with chiral metal complexes
	Wang, Jian ; Zeng, Lixi ; Ding, Dongdong ; Li, Xiangjun ; Zhang, Hui ; Zhao, Hong ; Fan, Jun ; Fang J(方军) ; Zhang, Weiguang ; He, Yujian
	2011-08-22
英文摘要	The effect of chiral metal complexes ([Co(en)(3)]I(3)center dot H(2)O, cis-[CoBr(NH(3))(en)(2)]Br(2), K[Co(edta)]center dot 2H(2)O and [Ru(phen)(3)](PF(6))(2)) on the polymer-bound J-aggregates in aqueous mixtures of pesudoisocyanine (PIC) iodine and poly(acrylic acid, sodium)(PAAS) have been studied by UV-vis absorption, circular dichroism (CD) and fluorescence spectra. At low concentration, the PIC monomers could self-assemble to form supermolecules by binding to each of the COO(-) groups on the polymer chains through electrostatic interactions. After the addition of chiral metal complexes to the formed PIC-PAAS J-aggregates, we found that only the chiral multiple pi-conjugated phenanthroline metal complexes could transfer their metal-centered chiral information to the formed J-aggregates. The chiral J-aggregates showed a characteristic induced circular dichroism (ICD) in the visible region of J-band chromophore, and the ICD signals depend on the absolute configuration, concentration of the chiral multiple pi-conjugated metal complexes, as well as temperature. More interestingly, the supramolecular chirality of the polymer supported PIC J-aggregates could be memorized even after the addition of an excess opposite chiral complex enantiomers. This is in sharp contrast to the behavior in the high concentrated NaCl induced PIC-J aggregates, in which the optical rotation of a mixture of two enantiomers varies linearly with their ratio.; National Natural Science Foundation of China[20773098, 20877099, 20972183]; State Key Laboratory of Natural and Biomimetic Drugs[20080208]; GUCAS (A B); Ministry of Science and Technology of China[2008AA100801]; CAS[2010B090300031]; Guangdong Province
语种	英语
出版者	ROYAL SOC CHEMISTRY
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:10.1039/c1cp20470j]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Wang, Jian,Zeng, Lixi,Ding, Dongdong,et al. Studies on the interaction of achiral cationic pseudoisocyanine with chiral metal complexes[J],2011.
APA	Wang, Jian.,Zeng, Lixi.,Ding, Dongdong.,Li, Xiangjun.,Zhang, Hui.,...&He, Yujian.(2011).Studies on the interaction of achiral cationic pseudoisocyanine with chiral metal complexes..
MLA	Wang, Jian,et al."Studies on the interaction of achiral cationic pseudoisocyanine with chiral metal complexes".(2011).

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