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Photochemical Upconversion: Anthracene Dimerization Sensitized to Visible Light by a Ru II Chromophore
Author(s) -
Islangulov Radiy R.,
Castellano Felix N.
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200601615
Subject(s) - photon upconversion , anthracene , photochemistry , chromophore , chemistry , cycloaddition , visible spectrum , annihilation , ruthenium , excitation , fluorescence , materials science , optoelectronics , physics , catalysis , ion , organic chemistry , optics , quantum mechanics
Double up : Photochemical upconversion by MLCT‐sensitized triplet–triplet annihilation is demonstrated (MLCT=metal‐to‐ligand charge transfer). Selective visible excitation of [Ru(dmb) 3 ] 2+ (dmb=4,4′‐dimethyl‐2,2′‐bipyridine) in the presence of anthracene efficiently produces the [4+4] cycloaddition product. This transformation traditionally requires ultraviolet light.