M. Julliard et al., PHOTODECHLORINATION OF MONOCHLOROBENZENES AND POLYCHLOROBENZENES BY REDUCTIVE PHOTOSENSITIZATION, Journal of photochemistry and photobiology. A, Chemistry, 83(2), 1994, pp. 107-112
Redox photosensitization was used to reduce mono and polychlorobenzene
s with the electron-donor photosensitizers N,N,N',N'-tetramethyl-p-phe
nylenediamine (NTMP), N,N,N',N'-tetramethylbenzidine (NTMB), 3-dimethy
laminophenol (NDMP) and 2-methoxyphenol (MEOP). The excited state ener
gies of the photosensitizers and the redox potentials of the donor-acc
eptor couples show that the reductive electron transfer from the excit
ed photosensitizers to the substrates is thermodynamically feasible. T
he results show that an electron-donor photosensitizer may increase th
e rate of dehalogenation of haloaromatic residues in the environment.