Guldi Dirk M, Da Ros Tatiana, Braiuca Paolo, Prato Maurizio
Radiation Laboratory, University of Notre Dame, IN 46556, USA.
Photochem Photobiol Sci. 2003 Nov;2(11):1067-73. doi: 10.1039/b307269j.
A novel ruthenium porphyrin complex bearing an axially coordinated fullerene ligand (RuP-C60), that is, a fulleropyrrolidine that bears a pyridine moiety, was developed as an artificial reaction center mimic. Generally, the new donor acceptor dyad gives rise to rapid intramolecular deactivation of the ruthenium porphyrin triplet excited state, which evolves from instantaneous intersystem crossing. The product of the ruthenium porphyrin excited-state deactivation depends on the solvent polarity. While in non-polar solvents a transduction of triplet excited energy predominates, in medium and strongly polar media, charge-separation leads to the formation of RuP*+ C60*-.
一种带有轴向配位富勒烯配体（RuP-C60）的新型钌卟啉配合物，即带有吡啶部分的富勒吡咯烷，被开发作为人工反应中心模拟物。通常，这种新的供体-受体二元体系会导致钌卟啉三重态激发态的快速分子内失活，这是由瞬间的系间窜越产生的。钌卟啉激发态失活的产物取决于溶剂极性。在非极性溶剂中，三重态激发能的转导占主导，而在中等极性和强极性介质中，电荷分离导致形成RuP*+ C60* -。
