White, Travis A.Arachchige, Shamindri M.Sedai, BaburamBrewer, Karen J.2021-05-272021-05-272010-08-011996-1944ma3084328 (PII)http://hdl.handle.net/10919/103540Steady-state and time-resolved emission spectroscopy are valuable tools to probe photochemical processes of metal-ligand, coordination complexes. Ru(II) polyazine light absorbers are efficient light harvesters absorbing in the UV and visible with emissive MLCT excited states known to undergo excited state energy and electron transfer. Changes in emission intensity, energy or band-shape, as well as excited state lifetime, provide insight into excited state dynamics. Photophysical processes such as intramolecular electron transfer between electron donor and electron acceptor sub-units may be investigated using these methods. This review investigates the use of steady-state and timeresolved emission spectroscopy to measure excited state intramolecular electron transfer in polyazine bridged Ru(II),Rh(III) supramolecular complexes. Intramolecular electron transfer in these systems provides for conversion of the emissive MLCT (metal-to-ligand charge transfer) excited state to a non-emissive, but potentially photoreactive, MMCT (metal-to-metal charge transfer) excited state. The details of the photophysics of Ru(II),Rh(III) and Ru(II),Rh(III),Ru(II) systems as probed by steady-state and timeresolved emission spectroscopy will be highlighted. © 2010 by the authors. 3 3 3Pages 4328-435427 page(s)Electronicapplication/pdfenCreative Commons Attribution 4.0 InternationalPhysical SciencesTechnologyChemistry, PhysicalMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringPhysics, AppliedPhysics, Condensed MatterChemistryMaterials SciencePhysicsemission spectroscopyMLCT light absorberspolyazine bridging ligandssupramolecularintramolecular electron transferPHOTOCATALYTIC HYDROGEN-PRODUCTIONTRANSITION-METAL-COMPLEXESEXCITED-STATECOORDINATION-COMPOUNDSPOLYPYRIDYL COMPLEXESBINUCLEAR COMPLEXESAQUEOUS-SOLUTIONSACCEPTOR LIGANDENERGY-TRANSFERVISIBLE-LIGHT03 Chemical Sciences09 EngineeringArticle - Refereed2021-05-27https://doi.org/10.3390/ma308432838Arachchige, Shamindri [0000-0002-8204-3295]28883332 (pubmed)1996-1944