Deuterium isotope effects on S1 radiationless decay in phenol and on intermolecular vibrations in the phenol-water complex

1989 ◽  
Vol 93 (1) ◽  
pp. 135-139 ◽  
Author(s):  
Robert J. Lipert ◽  
Steven D. Colson
Keyword(s):  
Isotope Effects ◽  
Water Complex ◽  
Deuterium Isotope Effects ◽  
Radiationless Decay ◽  
Phenol Water ◽  
Intermolecular Vibrations

Deuterium isotope effects on the 1T .far. 0S radiationless decay rate in stilbene

1973 ◽  
Vol 95 (8) ◽  
pp. 2543-2549 ◽  
Author(s):  
Jack. Saltiel ◽  
Joan T. D'Agostino ◽  
W. G. Herkstroeter ◽  
G. Saint-Ruf ◽  
N. P. Buu-Hoi
Keyword(s):  
Decay Rate ◽  
Isotope Effects ◽  
Deuterium Isotope Effects ◽  
Radiationless Decay

Mechanism of hydration and isomerisation of 4-ethylidene-2,6-di-tert-butyl-2,5-cyclohexadien-1-one. Kinetics, acid-base catalysis and solvent deuterium isotope effects

1979 ◽  
Vol 44 (1) ◽  
pp. 110-122 ◽  
Author(s):  
Jiří Velek ◽  
Bohumír Koutek ◽  
Milan Souček
Keyword(s):  
Aqueous Medium ◽  
Rate Equation ◽  
Kinetic Data ◽  
Isotope Effects ◽  
Base Catalysis ◽  
Quinone Methide ◽  
Reaction Products ◽  
Acid Base ◽  
Deuterium Isotope Effects ◽  
Hydroxybenzyl Alcohol

Competitive hydration and isomerisation of the quinone methide I at 25 °C in an aqueous medium in the region of pH 2.4-13.0 was studied spectrophotometrically. The only reaction products in the studied range of pH are 4-hydroxybenzyl alcohol (II) and 4-hydroxystyrene (III). The form of the overall rate equation corresponds to a general acid-base catalysis. The mechanism of both reactions for three markedly separated pH regions is discussed on the basis of kinetic data and solvent deuterium effect.

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