Author:
Chittim Brock,Safe Stephen,Bunce Nigel J.,Ruzo Luis O.,Olie Karl,Hutzinger Otto
Abstract
A variety of chlorinated p-terphenyls was photolyzed in organic media at 300 nm. Replacement of chlorine by hydrogen (dechlorination) was the major reaction. Substitution products were much more prominent than in the corresponding reactions of polychlorinated biphenyls.Quantum yields of reaction were substantially higher for ortho-chlorinated compounds. Xenon-assisted reactions and benzophenone sensitization indicate a triplet reactive state, although energy transfer from benzophenone is very inefficient. Triethylamine promoted an electron transfer pathway but only for those compounds that were least photolabile.
Publisher
Canadian Science Publishing
Subject
Organic Chemistry,General Chemistry,Catalysis
Cited by
23 articles.
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1. 2,5-Dimethyl-2,4-hexadiene induced photodechlorination of 9,10-dichloroanthracene;Photochemical & Photobiological Sciences;2009
2. Excited-state dynamics for interpretation of the solvent-dependent photochemistry of 9,10-dichloroanthracene in the presence of 2,5-dimethylhexa-2,4-diene;Journal of Photochemistry and Photobiology A: Chemistry;2000-05
3. Solvent-Dependent Quenching of the Lowest Excited Singlet State of 9,10-Dibromoanthracene by Ground-State 2,5-Dimethylhexa-2,4-Diene Yielding 9-Bromoanthracene or the [4+2] Adduct;Acta Physica Polonica A;1998-10
4. Primary process for the photochemistry of 9,10-dibromoanthracene yielding 9-bromoanthracene in cyclohexane-amine (triethylamine or N,N-dimethylaniline) studied by picosecond laser photolysis;Journal of Photochemistry and Photobiology A: Chemistry;1997-04
5. Solvent Effects on the Formation and Decay of an Exciplex between the Lowest Excited Singlet State of 9,10-Dibromoanthracene and Ground-State Amine (N,N-Dimethylaniline or Triethylamine);The Journal of Physical Chemistry;1996-01-01