Electron Localization Dynamics in the Triplet Excited State of [ Ru ACHTUNGRE ( bpy ) 3 ] 2 + in Aqueous Solution
نویسندگان
چکیده
منابع مشابه
Generation by Electron Transfer of an Emitting State Not Observed by Photoexcitation in a Linked Ru(bpy)3-Methyl Viologen
The molecule in which a methyl viologen (MV2+) moiety is coupled through a three-carbon chain to one bipyridine in Ru(bpy)3 (bpy ) 2,2′bipyrine), [Ru(bpy)2(4-(2-(1′-methyl-4-4′-bipyridinediium-1-yl)propyl)-4′-methyl2,2′-bipyridine), abbreviated Ru(bpy)2(MV-bpy)], does not emit upon photoexcitation because of rapid quenching of the MLCT state by the MV2+. The integrated steady-state photoemissio...
متن کاملX-ray transient absorption structural characterization of the 3MLCT triplet excited state of cis-[Ru(bpy)2(py)2]2+.
The excited state dynamics and structure of the photochemically active complex cis-[Ru(bpy)2(py)2](2+) have been investigated using optical transient absorption (OTA) and X-ray transient absorption (XTA) spectroscopy, and density functional theory (DFT). Upon light-excitation in aqueous solution cis-[Ru(bpy)2(py)2](2+) undergoes ultrafast dissociation of one pyridine ligand to form cis-[Ru(bpy)...
متن کاملRemarkable oxidizing ability of triplet excited states of tetrazines produced by photosensitization with Ru(bpy)3(2+).
An efficient energy transfer from Ru(bpy)3(2+)* (bpy = 2,2'-bipyridine, * denotes the excited state) to tetrazines occurs to yield the triplet excited states of tetrazines, which have much longer lifetimes and higher oxidizing ability as compared with those of Ru(bpy)3(2+)*.
متن کاملReference Ruthenium ( II ) Coordination Chemistry of a Fused Donor - Acceptor Ligand : Synthesis , Characterization and Photoinduced Electron
A π-extended, redox-active bridging ligand 4 ́,5 ́-bis(propylthio)tetrathiafulvenyl[i]dipyrido[2,3-a:3 ́,2 ́-c]phenazine (L) was prepared via direct Schiff-base condensation of the corresponding diamine-tetrathiafulvalene (TTF) precursor with 4,7-phenanthroline-5,6-dione. Reactions of L with [Ru(bpy)2Cl2] afforded its stable monoand dinuclear ruthenium(II) complexes 1 and 2. They have been fully ch...
متن کاملUltrafast electron localization dynamics following photo-induced charge transfer
Molecular dynamics occurring in the earliest stages following photo-induced charge transfer were investigated. Femtosecond time-resolved absorption anisotropy measurements on [Ru(bpy)(3)](2+), where bpy is 2,2'-bipyridine, reveal a time dependence in nitrile solutions attributed to initial delocalization of the excited state over all three ligands followed by charge localization onto a single l...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2010