ICCAS OpenIR
Chiral Induction, Memory, and Amplification in Porphyrin Homoaggregates Based on Electrostatic Interactions
Zeng, LiXi1; He, Yujian1,2; Dai, Zhifeng1; Wang, Jian1; Cao, Qian1; Zhang, Yuliang3
2009-04-14
Source PublicationCHEMPHYSCHEM
ISSN1439-4235
Volume10Issue:6Pages:954-962
AbstractSupramolecular chirality in two configurational homoaggregates of anionic meso-tetrakis(4-sulfonatophenyl)porphyrin (TPPS) can be induced by D- and L-alanine (Ala) in acidic water, respectively. The induced supramolecular chirality can be further memorized and enforced, even after complete removal of Ala or in the presence of excess Ala with the opposite configuration, through strong electrostatic interactions with achiral poly(allylamine) [PAA]. The ionic chiral interactions between TPPS and Ala or PAA are characterized by means of UV/Vis absorption and circular dichroism spectrometry. Fluorescence spectroscopy and atomic force microscopy are used as complementary techniques. On the basis of the comprehensive experimental results, a possible mechanism for chiral induction, memory; and amplification of TPPS homoaggregates by chiral amino acids and achiral PAA is proposed. Thus, we demonstrate a novel strategy to realize chiral memory in supramolecular systems by polyelectrolytes through hierarchical electrostatic self-assembly.
KeywordChirality Electrostatic Interactions J-aggregates Self-assembly Supramolecular Chemistry
DOI10.1002/cphc.200800810
Indexed BySCI
Language英语
WOS IDWOS:000265469200016
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/67464
Collection中国科学院化学研究所
Corresponding AuthorZeng, LiXi
Affiliation1.Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
2.Peking Univ, State Key Lab Nat & Biomimet Drugs, Beijing 100191, Peoples R China
3.Chinese Acad Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zeng, LiXi,He, Yujian,Dai, Zhifeng,et al. Chiral Induction, Memory, and Amplification in Porphyrin Homoaggregates Based on Electrostatic Interactions[J]. CHEMPHYSCHEM,2009,10(6):954-962.
APA Zeng, LiXi,He, Yujian,Dai, Zhifeng,Wang, Jian,Cao, Qian,&Zhang, Yuliang.(2009).Chiral Induction, Memory, and Amplification in Porphyrin Homoaggregates Based on Electrostatic Interactions.CHEMPHYSCHEM,10(6),954-962.
MLA Zeng, LiXi,et al."Chiral Induction, Memory, and Amplification in Porphyrin Homoaggregates Based on Electrostatic Interactions".CHEMPHYSCHEM 10.6(2009):954-962.
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