Počet záznamů: 1

Ultrafast Excited-State Processes in Re(I) Carbonyl-Diimine Complexes: From Excitation to Photochemistry

  1. 1.
    0341548 - UFCH-W 2011 RIV DE eng M - Část monografie knihy
    Vlček, Antonín
    Ultrafast Excited-State Processes in Re(I) Carbonyl-Diimine Complexes: From Excitation to Photochemistry.
    Photophysics of Organometallics. 1. Heidelberg: Springer Berlin, 2010 - (Lees, A.), s. 73-114. Topics in Organometallic Chemistry, 29. ISBN 978-3-642-04728-2
    Grant CEP: GA MŠk 1P05OC068; GA MŠk OC09043
    Výzkumný záměr: CEZ:AV0Z40400503
    Klíčová slova: rhenium * carbonyl * diimine
    Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie

    Rhenium(I) carbonyl-diimines are chemically robust and synthetically flexible photo- and redox active compounds that can be incorporated into supramolecular systems, polymers or biomolecules. They can be used as efficient and fast photosensitizers. In this chapter, we will follow excited-state evolution of ReI complexes from the instant of photon absorption through intersystem crossing, relaxation of “hot” triplet states, to their decay either to the ground state or to photoproducts. Out of many decay pathways, we concentrate on nonradiative decay following the energy gap law, excited-state electron- and energy transfer and ligand isomerization. Characterization of the lowest excited state by ultrafast IR spectroscopy and DFT calculations are discussed in detail. It is shown that excited-state properties are much influenced by mixing of Re(CO)3→diimine, L→diimine CT and intraligand ππ* excitations.
    Trvalý link: http://hdl.handle.net/11104/0184490