Abstract
The first study of temperature dependent photochemical reactions in the microwave field is reported. Two different photochemical processes: temperature dependent solvent effects in the Norrish type II reaction and the photo-Fries reaction, were investigated under various thermal conditions including microwave heating. The former process exhibited a linear and reliable temperature dependence which served for the estimation of the microwave superheating effects in four different solvents. Their magnitudes were in a perfect agreement with the measured temperature enhancements. Thus, this photochemical system is proposed as a reliable molecular photochemical thermometer. The latter photochemical reaction studied showed a non-linear temperature dependence. All chemical changes in the microwave field were rationalized as a consequence of thermal effects.
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Schedule a callMore From: Journal of Photochemistry & Photobiology, A: Chemistry
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