Expanded bite angles in tridentate ligands: improving the photophysical properties in bistridentate Ru-II polypyridine complexes
2010 (English)In: Coordination chemistry reviews, ISSN 0010-8545, E-ISSN 1873-3840, Vol. 254, no 21-22, 2546-2559 p.Article in journal (Refereed) Published
Bistridentate metal complexes as photosensitizers are ideal building blocks in the construction of rodlike isomer-free assemblies for intramolecular photoinduced charge separation. Approaches to obtain long-lived luminescent metal-to-ligand charge transfer excited states in bistridentate Run polypyridine complexes via the manipulation of metal-centered state energies are discussed. Following an introduction to general strategies to prolong the excited state lifetimes, more recent work is explored in detail where tridentate ligands with expanded 2,2':6',2 ''-terpyridine cores are utilized. The synthesis of these tridentate ligands and their corresponding Ru-II complexes is covered. Bistridentate Run complexes with microsecond metal-to-ligand charge transfer excited state lifetimes are described, and are used in electron donor-photosensitizer-electron acceptor assemblies for efficient vectorial photoinduced charge separation.
Place, publisher, year, edition, pages
2010. Vol. 254, no 21-22, 2546-2559 p.
Ruthenium, Tridentate ligands, Polypyridine ligands, Luminescence, Photochemistry, Donor-acceptor
IdentifiersURN: urn:nbn:se:uu:diva-136497DOI: 10.1016/j.ccr.2010.01.006ISI: 000282389100010OAI: oai:DiVA.org:uu-136497DiVA: diva2:377313