Dynamics of complexation of flavone and chromone to β-cyclodextrin

被引：33

作者：

Christoff, M ^{[1
]}

Okano, LT ^{[1
]}

Bohne, C ^{[1
]}

机构：

[1] Univ Victoria, Dept Chem, Victoria, BC V8W 3V6, Canada

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2000年 / 134卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

triplet state; cyclodextrins; flavone; chromone; absorption spectra;

D O I：

10.1016/S1010-6030(00)00262-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The complexation dynamics of the excited tripler states of flavone and chromone with beta-cyclodextrin was studied by laser flash photolysis. The exit and entry rate constants for the triplet states of these ketones were determined using Cu2+ and NO2- as quenchers. The entry and exit rate constants depend on the size of the guest molecule and were faster for chromone than for flavone. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：169 / 176

页数：8

共 39 条

[1] EXPLORATORY-STUDY OF THE EFFECT OF POLY-ELECTROLYTE SURFACTANT AGGREGATES ON PHOTOCHEMICAL BEHAVIOR [J].

ABUIN, EB ;

SCAIANO, JC .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1984, 106 (21) :6274-6283

[2] DYNAMIC AND STATIC ASPECTS OF SOLUBILIZATION OF NEUTRAL ARENES IN IONIC MICELLAR SOLUTIONS [J].

ALMGREN, M ;

GRIESER, F ;

THOMAS, JK .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1979, 101 (02) :279-291

[3]

[Anonymous], 1996, J CRYST ENG

[4]

[Anonymous], 1980, ANGEW CHEM, DOI DOI 10.1002/ANGE.19800920505

[5] TRIPLET-STATE PROPERTIES OF FLAVONE IN HOMOGENEOUS AND MICELLAR SOLUTIONS - A LASER FLASH-PHOTOLYSIS STUDY [J].

AVILA, V ;

PREVITALI, CM .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1995, (12) :2281-2285

[6] EFFECT OF CYCLODEXTRIN COMPLEXATION ON THE PHOTOCHEMISTRY OF XANTHONE - ABSOLUTE MEASUREMENT OF THE KINETICS FOR TRIPLET-STATE EXIT [J].

BARRA, M ;

BOHNE, C ;

SCAIANO, JC .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1990, 112 (22) :8075-8079

[7] Deuterium isotope effect on the complexation of β-cyclodextrin and triplet xanthone in aqueous solution [J].

Barra, M .

SUPRAMOLECULAR CHEMISTRY, 1997, 8 (04) :263-266

[8] Complexation of naphthylethanols with β-cyclodextrin [J].

Barros, TC ;

Stefaniak, K ;

Holzwarth, JF ;

Bohne, C .

JOURNAL OF PHYSICAL CHEMISTRY A, 1998, 102 (28) :5639-5651

[9] A SPECTROPHOTOMETRIC INVESTIGATION OF THE INTERACTION OF IODINE WITH AROMATIC HYDROCARBONS [J].

BENESI, HA ;

HILDEBRAND, JH .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1949, 71 (08) :2703-2707

[10] LASER-INDUCED PHOTOIONIZATION OF AROMATIC KETONES IN ANIONIC MICELLAR SOLUTIONS [J].

BOCH, R ;

WHITTLESEY, MK ;

SCAIANO, JC .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (32) :7854-7857

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