SEARCH Articles Figures Tables Intersystem crossing singlet phenyl nitrene Nitrene Nitrene from phenyl azide photolysis Nitrene phenyl substituent effects Nitrene, 2- phenyl-, formation Nitrene, 2- phenyl-, formation cyclization Nitrenes Nitrenes phenyl Nitrenes phenyl Phenyl nitrene reaction with oxygen Phenyl nitrene singlet lifetime