FLASH-PHOTOLYSIS NMR - CIDNP TIME-DEPENDENCE IN CYCLIC PHOTOCHEMICAL-REACTIONS

Abstract

A microsecond NMR flash photolysis technique has been used to study the tune dependence of CIDNP spectra observed during the cyclic photochemical reaction of N-acetyltryptophan with 3-N-carboxy methyllumiflavin. The rapid fall in the flavin enhancements is attributed to cancellation of escape- and recombination-type polarizations. This is caused by the dispropornonation of flavin radicals. © 1981