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Titolo:
Unique fluorescence behavior of Rhodamine B upon inclusion complexation with novel bis(beta-cyclodextrin-6-yl) 2,2 '-bipyridine-4,4 '-dicarboxylate
Autore:
Liu, Y; Chen, Y; Liu, SX; Guan, XD; Wada, T; Inoue, Y;
Indirizzi:
Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China Nankai Univ Tianjin Peoples R China 300071 anjin 300071, Peoples R China JST, ERATO, Inoue Photochirogenesis Project, Suita, Osaka 5650085, Japan JST Suita Osaka Japan 5650085 enesis Project, Suita, Osaka 5650085, Japan Osaka Univ, Dept Mol Chem, Suita, Osaka 5650871, Japan Osaka Univ Suita Osaka Japan 5650871 ol Chem, Suita, Osaka 5650871, Japan
Titolo Testata:
ORGANIC LETTERS
fascicolo: 11, volume: 3, anno: 2001,
pagine: 1657 - 1660
SICI:
1523-7060(20010531)3:11<1657:UFBORB>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
CYCLODEXTRIN DIMERS; SUPRAMOLECULAR SYSTEMS; MOLECULAR RECOGNITION; SELECTIVE BINDING; BETA-CYCLODEXTRIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Liu, Y Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China Nankai Univ Tianjin Peoples R China 300071 00071, Peoples R China
Citazione:
Y. Liu et al., "Unique fluorescence behavior of Rhodamine B upon inclusion complexation with novel bis(beta-cyclodextrin-6-yl) 2,2 '-bipyridine-4,4 '-dicarboxylate", ORG LETT, 3(11), 2001, pp. 1657-1660

Abstract

[GRAPHICS]Newly synthesized bis(beta -cyclodextrin-6-yl) 2,2'-bipyridine-4,4'-dicarboxylate was found to induce an unusual fluorescence enhancement of Rhodamine B (RhB) upon complexation. This effect is attributable to the equilibium shift of RhB to the highly fluorescent carboxylate ion form, which is induced by the cooperative binding by two appropriately preorganized cyclodextrin units in the bis(P cyclodextrin). This sandwich complexation behavior wasinvestigated by means of the fluorescence and 2D NMR spectroscopy.

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Documento generato il 14/08/20 alle ore 07:34:09