8). of its kind in TMD thermolysis. Previous worker^,^,*^.*^ detected the triplet mostly by indirect methods. The observed emission spectrum, even in oxygen free solutions, was always shifted to the blue relative to genuine triplet phosphorescence. The high time resolution afforded by the pulsed infrared laser technique is of crucial importance in our work, and allowed us to distinguish between the 420-nm emission, dominant at short time ...
