title: Specific Photochemical Dehydrocoupling of N-Heterocyclic Phosphanes and Their Use in the Photocatalytic Generation of Dihydrogen.
abstract: N-Heterocyclic phosphanes react under UV irradiation in a highly selective dehydrocoupling reaction to diphosphanes and H2. Computational studies suggest that the product formation is initiated by the formation of dimeric molecular associates whose electronic excitation yields H2 and a diphosphane. Combining the dehydrocoupling of sterically demanding phosphanes with Mg-reduction of the formed diphosphanes allows constructing a reaction cycle for the photocatalytic reductive generation of H2 from Et3NH(+).
authors.affiliation: Institut für Anorganische Chemie, University of Stuttgart, Pfaffenwaldring 55, 70550 Stuttgart (Germany).
authors.forename: Oliver
authors.initials: O
authors.lastname: Puntigam
authors.affiliation: Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economy, Szent Gellért tér 4, 1111 Budapest (Hungary).
authors.forename: László
authors.initials: L
authors.lastname: Könczöl
authors.affiliation: Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economy, Szent Gellért tér 4, 1111 Budapest (Hungary). nyulaszi@mail.bme.hu.
authors.forename: László
authors.initials: L
authors.lastname: Nyulászi
authors.affiliation: Institut für Anorganische Chemie, University of Stuttgart, Pfaffenwaldring 55, 70550 Stuttgart (Germany). gudat@iac.uni-stuttgart.de.
authors.forename: Dietrich
authors.initials: D
authors.lastname: Gudat
keywords: N-heterocyclic phosphanes; computational studies; dehydrocoupling; hydrogen; photolysis