SENSITIZED KETONIZATION OF ETHYL ACETOACETATE - METHOD FOR THE DETERMINATION OF TRIPLET QUANTUM YIELDS

被引：8

作者：

KITTEL, G ^{[1
]}

KOHLER, G ^{[1
]}

GETOFF, N ^{[1
]}

机构：

[1] VIENNA UNIV,INST THEORET CHEM & STRAHLENCHEM,A-1090 VIENNA,AUSTRIA

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1979年 / 83卷 / 16期

关键词：

D O I：

10.1021/j100479a027

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：

A new method for the determination of triplet quantum yields, QT, based on the ketonization of ethyl acetoacetate (EAA) sensitized by triplet energy transfer, is described. Steady state and fluorescence measurements were carried out, using benzene, toluene, and p-xylene as energy donors. The QT values obtained by this simple method are in very good agreement with data obtained by other methods. A probable mechanism for photoketonization is discussed. © 1979 American Chemical Society.

引用

页码：2174 / 2176

页数：3

共 25 条

[1]

Birks J.B., 1970, PHOTOPHYSICS AROMATI

[2]

CAROLL FA, 1976, J AM CHEM SOC, V98, P6

[3] PRIMARY PHOTOPHYSICAL PROCESSES IN BENZENE .2. MONOMER STUDIES [J].

CUNDALL, RB ;

ROBINSON, DA .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS II, 1972, 68 :1145-+

[4] PHOTOPHYSICAL DECAY PROCESSES OF TOLUENE IN DILUTE-SOLUTION [J].

CUNDALL, RB ;

PEREIRA, LC ;

ROBINSON, DA .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS II, 1973, 69 (05) :701-707

[5] POTENTIAL-ENERGY SHEETS FOR NPI' AND PIPI' TRIPLET-STATES OF ALPHA,BETA-UNSATURATED KETONES [J].

DEVAQUET, A .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1972, 94 (15) :5160-&

[6] GROUND STATES OF SIGMA-BONDED MOLECULES .12. MINDO/1 STUDIES OF INVERSION BARRIERS, ROTATIONAL BARRIERS, TAUTOMERISM, AND HYDROGEN BONDING [J].

DEWAR, MJS ;

SHANSHAL, M .

JOURNAL OF THE CHEMICAL SOCIETY A -INORGANIC PHYSICAL THEORETICAL, 1971, (01) :25-&

[7] SPIN-ORBIT COUPLING AND RADIATIONLESS PROCESSES IN NITROGEN HETEROCYCLICS [J].

ELSAYED, MA .

JOURNAL OF CHEMICAL PHYSICS, 1963, 38 (12) :2834-&

[8] CONCERNING ROLE OF STERIC FACTORS IN QUENCHING OF ALKYLBENZENE FLUORESCENCE BY DIENES [J].

FROEHLICH, PM ;

MORRISON, HA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1974, 96 (02) :332-334

[9] CHANGE IN ENOL-KETO RATIO OF ACETOACETATE BY MEANS OF CO-60 GAMMA-IRRADIATION [J].

GETOFF, N ;

FRATEV, F .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-FRANKFURT, 1977, 104 (1-3) :131-138

[10] CONCENTRATION AND TEMPERATURE-DEPENDENCE OF QUANTUM YIELD AND LIFETIME OF LOWEST TRIPLET-STATE OF BENZENE IN LIQUID-PHASE [J].

HENTZ, RR ;

THIBAULT, RM .

JOURNAL OF PHYSICAL CHEMISTRY, 1973, 77 (09) :1105-1111

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