Abstract
Fluorescence and phosphorescence spectra of yohimbine, reserpine, rescinnamine, corynanthine, ajmalicine, reserpic acid and 6-methoxyindole were measured in solution at 298 and 77 K. The data obtained provide a basis for the analytical determination of yohimbine and reserpine in low concentrations. Insight is afforded into quenching processes which degrade emission in reserpine and rescinnamine molecules. The lowest triplet state of reserpine is located and characterized.
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