| Abstract: | Flash photolysis has been used in a study of the absorption spectra and decay kinetics of the intermediates in photolysis
of 4,4′-bis-dimethylaminobenzophenone, 4,4′-bis-diethylaminobenzophenone, and 4-dimethylamino-benzophenone in various types
of solvents. It has been established that flash photolysis of solutions of alkylaminobenzophenones in polar solvents produces
not only alkylamine or ketyl radicals, but also an intermediate that absorbs in the 470 nm region, the decay curves of which
are described by first-order kinetic equations. In the presence of tertiary amines, the yield of this product is lower. The
addition of sodium perchlorate to the solution increases the lifetime of this intermediate species.
L. V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of the Ukraine, 31 Nauka Prospect, 252039
Kiev, Ukraine. Translated from Teoreticheskaya i éksperimental’naya Khimiya, Vol. 33, No. 1, pp. 27–31, January–February,
1997. |
