Laser flash photolysis studies of dibenzosuberenyl cations and radical cations

LJ Johnston, J Lobaugh…

文献索引：Johnston, L. J.; Lobaugh, J.; Wintgens, V. Journal of Physical Chemistry, 1989 , vol. 93, # 21 p. 7370 - 7374

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被引用次数: 19

摘要

A variety of dibenzosuberenyl systems have been investigated by laser flash photolysis. Excitation of the parent alcohol, 5-dibenzosuberenol, in trifluoroethanol yields the corresponding carbocation via heterolysis of the C-OH bond. The carbocation shows a long- lived (> lo0 ps) absorption at 525 nm with a second band at 390 nm, is readily quenched by nucleophiles & (azide)= 1.1 x io9 h4-Is-l), a nd fluoresces with a lifetime of 35 ns. In other ...