HIGH-PRESSURE ONLINE PHOTOLYSIS WITH NMR DETECTION

The investigation of the photoreversible fulgide Aberchrome-540 as a f unction of pressure and temperature with the use of nuclear magnetic r esonance (NMR) detection is described, This technique demonstrates the novel combination of high-pressure NMR and laser photolysis with the use of fiber optics for the conversion of the fulgide on-line in the i nstrument. Investigation of the photolysis of Aberchrome-540 to 2.0 kb ar and 120 degrees C is reported, Extension of this technique should a llow the investigation of photoinitiated reaction kinetics and equilib ria as a function of pressure and temperature with simultaneous struct ure characterization by NMR.