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Photophysics of Organometallics
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SYSNO ASEP 0341548 Document Type M - Monograph Chapter R&D Document Type Monograph Chapter Title Ultrafast Excited-State Processes in Re(I) Carbonyl-Diimine Complexes: From Excitation to Photochemistry Author(s) Vlček, Antonín (UFCH-W) RID, ORCID Source Title Photophysics of Organometallics. - Heidelberg : Springer Berlin, 2010 / Lees A. J. - ISBN 978-3-642-04728-2 Pages s. 73-114 Number of pages 42 s. Number of pages 239 Language eng - English Country DE - Germany Keywords rhenium ; carbonyl ; diimine Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects 1P05OC068 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) OC09043 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000275954500003 EID SCOPUS 72749111390 DOI 10.1007/978-3-642-04729-9 Annotation 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. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2011
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