Multiphoton, Multielectron Transfer Photochemistry in a Soluble Polymer

Autor:	Thomas J. Meyer, Wayne E. Jones, a Laura A. Worl, Geoffrey F. Strouse, b Janet N. Younathan, Kimberly A. Maxwell, Earl Danielson, and Milan Sykora
Rok vydání:	1999
Předmět:	chemistry.chemical_classification Polymer Chromophore Photochemistry Styrene Inorganic Chemistry chemistry.chemical_compound Electron transfer chemistry Nucleophilic substitution Copolymer Flash photolysis Polystyrene Physical and Theoretical Chemistry
Zdroj:	Inorganic Chemistry. 38:2705-2708
ISSN:	1520-510X 0020-1669
DOI:	10.1021/ic981420g
Popis:	The effects of laser irradiance and quencher concentration on photochemical electron transfer in a RuII-bpy derivatized, polystyrene polymer have been studied. The polymer was a 1:1 copolymer of styrene:p-chloromethylstyrene with, on the average, ∼30 repeat units in which each of the chloro groups was replaced by a [RuII(bpy)2(4-CH2O-4‘-CH3bpy)]2+ chromophore by nucleophilic substitution. The abbreviation for the resulting polymer salt is [co-PS-CH2OCH2-(RuII30)](PF6)60. Upon visible excitation by laser flash photolysis at high irradiances, multiphoton excitation in the presence of high concentrations of the reductive quencher phenothiazine leads to individual polymeric strands that are reduced, on the average, by up to seven electrons to give PS-CH2OCH2-(Ru2+23Ru+7)]53+.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e97106c9ab3c97c57d4fe8c95a93acc5 https://doi.org/10.1021/ic981420g Zobrazit plný text záznamu