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Volumn 50, Issue 49, 2011, Pages 11692-11696

Chiral amplification and helical-sense tuning by mono- and divalent metals on dynamic helical polymers

Author keywords

chiral amplification; helical structures; helix induction; metal cations; sensors

Indexed keywords

CHIRAL AMPLIFICATION; DIVALENT METAL CATIONS; DIVALENT METALS; HELICAL POLYMERS; HELICAL SENSE; HELICAL STRUCTURES; HELIX INDUCTION; ION-SENSORS; METAL CATION; METAL CATIONS; ON DYNAMICS; POLY(PHENYLACETYLENE); SELECTIVE COORDINATION;

EID: 82455192733     PISSN: 14337851     EISSN: 15213773     Source Type: Journal    
DOI: 10.1002/anie.201105769     Document Type: Article
Times cited : (141)

References (38)
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    • Kakuchi et al. have reported that the CD spectra of copolymers that had an initial predominant one-handed helical sense were inverted in the presence of metal cations. However, neither selectivity related to the valence of the cations (the polymers did not behave as valence sensors) nor amplification of chirality mechanisms and the helical senses of the copolymers (AFM images) were reported. See
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    • To our knowledge, this is the first time that images of both helical senses are reported for polyphenylacetylenes bearing short pendants. Usually, long alkyl chains are needed as pendants to favor the interaction with the HOPG surface. See reference [4a] and, S. Sakurai, K. Okoshi, J. Kumaki, E. Yashima, Angew. Chem. 2006, 118, 1267-1270
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    • We recently reported a less dynamic polymer bearing another kind of pendant with a different connection to the phenylacetylene, where the addition of certain metal cations produced helix inversion from a previous predominant helical sense, but neither selectivity associated with the valence of the metals nor amplification of chirality were observed. Thus, that material did not behave as valence sensor. See, I. Louzao, J. M. Seco, E. Quiñoá, R. Riguera, Angew. Chem. 2010, 122, 1472-1475
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.