Journal of Physical Chemistry p. 1680 - 1682 (1983)
Update date:2022-08-16
Topics:
Hirata, Yoshinori
Mataga, Noboru
The monophotonic ionization of N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD) has been studied by means of transient absorption and transient photoconductivity measurements in acetonitrile solution.It has been concluded that the photoionization of TMPD is similar to that of 2,7-bis(dimethylamino)-4,5,9,10-tetrahydropyrene in acetonitrile solution.The formation and decay of the bound ion-pair state which is formed from the fluorescent state of TMPD and gives a quite similar absorption spectrum to the dissociated TMPD cation radical has been observed directly.The decay of the bound ion-pair state has been found to obey the reciprocal square root time dependence in the submicro to tens of microsecond time region.
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