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dc.contributor.authorWang, Jian
dc.contributor.authorZeng, Lixi
dc.contributor.authorDing, Dongdong
dc.contributor.authorLi, Xiangjun
dc.contributor.authorZhang, Hui
dc.contributor.authorZhao, Hong
dc.contributor.authorFan, Jun
dc.contributor.author方军
dc.contributor.authorZhang, Weiguang
dc.contributor.authorHe, Yujian
dc.date.accessioned2012-04-07T09:31:54Z
dc.date.available2012-04-07T09:31:54Z
dc.date.issued2011-08-22
dc.identifier.citationPHYSICAL CHEMISTRY CHEMICAL PHYSICS,2011,13(37):16741-16747zh_CN
dc.identifier.issn1463-9076
dc.identifier.urihttp://dx.doi.org/doi:10.1039/c1cp20470j
dc.identifier.uriWOS:000294501700033
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/12001
dc.description.abstractThe 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.zh_CN
dc.description.sponsorshipNational 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 Provincezh_CN
dc.language.isoenzh_CN
dc.publisherROYAL SOC CHEMISTRYzh_CN
dc.titleStudies on the interaction of achiral cationic pseudoisocyanine with chiral metal complexeszh_CN
dc.typeArticlezh_CN


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