THE INTERACTION OF SINGLET MOLECULAR-OXYGEN O2(1-DELTA-G) WITH INDOLIC DERIVATIVES, DISTINCTION BETWEEN PHYSICAL AND REACTIVE QUENCHING

被引：61

作者：

PALUMBO, MC

GARCIA, NA

ARGUELLO, GA

机构：

[1] UNIV NACL RIO CUARTO,DEPT QUIM & FIS,RA-5800 RIO CUARTO,ARGENTINA

[2] NATL UNIV CORDOBA,FAC CIENCIAS QUIM,INFIQC,DEPT FIS QUIM,RA-5016 CORDOBA,ARGENTINA

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY | 1990年 / 7卷 / 01期

关键词：

indoles; Photo-oxidation; photosensitized reactions; quenching kinetics; singlet molecular oxygen;

D O I：

10.1016/1011-1344(90)85141-I

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A number of indolic compounds were studied as quenchers of singlet molecular oxygen. O2(1Δg) generated by photosensitization. The ratio of the chemical (reactive) and physical quenching paths was a function of the substitution pattern of the quencher. Indoles substituted in position 3 gave measurable reaction rates, whereas the parent indole and those derivatives substituted in other nuclear positions predominantly gave physical interaction. The results are discussed in terms of the formation of an exciplex with partial polar character between O2(1Δg) and the indolic compound. © 1990.

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页码：33 / 42

页数：10

相关论文

共 32 条

[1]

BEECH G, 1975, FORTRAN 4 CHEM

[2] QUENCHING OF SINGLET OXYGEN (DELTA-1(G) BY TRANSITION-METAL CHELATES [J].

CARLSSON, DJ ;

SUPRUNCH.T ;

WILES, DM .

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1974, 52 (22) :3728-3737

[3] QUENCHING OF SINGLET OXYGEN BY ALPHA-TOCOPHEROL [J].

FAHRENHOLTZ, SR ;

DOLEIDEN, FH ;

TROZZOLO, AM ;

LAMOLA, AA .

PHOTOCHEMISTRY AND PHOTOBIOLOGY, 1974, 20 (06) :505-509

[4] QUENCHING OF SINGLET OXYGEN [J].

FOOTE, CS ;

DENNY, RW ;

WEAVER, L ;

CHANG, Y ;

PETERS, J .

ANNALS OF THE NEW YORK ACADEMY OF SCIENCES, 1970, 171 (01) :139-&

[5] PHOTOACOUSTIC MEASUREMENTS AND MINDO/3 CALCULATIONS OF ENERGY-STORAGE BY SHORT-LIVED SPECIES - THE SPIRO[1,8-ALPHA]DIHYDROINDOLIZINE BETAINE SYSTEM [J].

GARCIA, NA ;

ROSSBROICH, G ;

BRASLAVSKY, SE ;

DURR, H ;

DORWEILER, C .

JOURNAL OF PHOTOCHEMISTRY, 1985, 31 (2-3) :297-305

[6] IDENTIFICATION OF BOTH PREEQUILIBRIUM AND DIFFUSION LIMITS FOR REACTION OF SINGLET OXYGEN, O-2(1-DELTA-G), WITH BOTH PHYSICAL AND CHEMICAL QUENCHERS - VARIABLE-TEMPERATURE, TIME-RESOLVED INFRARED LUMINESCENCE STUDIES [J].

GORMAN, AA ;

HAMBLETT, I ;

LAMBERT, C ;

SPENCER, B ;

STANDEN, MC .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1988, 110 (24) :8053-8059

[7] REVERSIBLE EXCIPLEX FORMATION BETWEEN SINGLET OXYGEN, 1-DELTA-G, AND VITAMIN-E - SOLVENT AND TEMPERATURE EFFECTS [J].

GORMAN, AA ;

GOULD, IR ;

HAMBLETT, I ;

STANDEN, MC .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1984, 106 (23) :6956-6959

[8] TIME-RESOLVED STUDY OF THE SOLVENT AND TEMPERATURE-DEPENDENCE OF SINGLET OXYGEN (1-DELTA-G) REACTIVITY TOWARD ENOL ETHERS - REACTIVITY PARAMETERS TYPICAL OF RAPID REVERSIBLE EXCIPLEX FORMATION [J].

GORMAN, AA ;

GOULD, IR ;

HAMBLETT, I .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1982, 104 (25) :7098-7104

[9] ENTROPY-CONTROLLED REACTIVITY OF SINGLET OXYGEN(1-DELTA-G) TOWARD FURANS AND INDOLES IN TOLUENE - VARIABLE-TEMPERATURE STUDY BY PULSE-RADIOLYSIS [J].

GORMAN, AA ;

LOVERING, G ;

RODGERS, MAJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1979, 101 (11) :3050-3055

[10] KINETICS OF THE PHOTOSENSITIZED OXIDATION OF POLYCHLOROPHENOLS IN ALKALINE AQUEOUS-SOLUTION [J].

GSPONER, HE ;

PREVITALI, CM ;

GARCIA, NA .

TOXICOLOGICAL AND ENVIRONMENTAL CHEMISTRY, 1987, 16 (01) :23-37

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