Compatible Injection and Detection Systems for Studying the Kinetics of Excess Electron Transfer

A design for fast kinetic studies of electron transfer in radical anions is reported. α-Hydroxy radicals formed by 355 nm laser flash photolysis of α-phenacyl alcohols are deprotonated under basic conditions to give ketyl radical anions that serve as electron injectors in inter- and intramolecular e...

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Bibliographic Details
Published inOrganic letters Vol. 9; no. 9; pp. 1837 - 1840
Main Authors Xu, Libin, Jin, Jing, Lal, Mukul, Daublain, Pierre, Newcomb, Martin
Format Journal Article
LanguageEnglish
Published WASHINGTON American Chemical Society 26.04.2007
Amer Chemical Soc
Subjects
Chemistry
Chemistry, Organic
Electrons
Kinetics
Molecular Structure
Physical Sciences
Science & Technology
Spectrum Analysis
DISTANCE DEPENDENCE
TRANSPORT
REDUCTION
PULSE-RADIOLYSIS
CHEMISTRY
CYCLOPROPYLCARBINYL
CHARGE-TRANSFER
HETEROLYSIS
RADICAL KINETICS
DNA HAIRPINS
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Summary:A design for fast kinetic studies of electron transfer in radical anions is reported. α-Hydroxy radicals formed by 355 nm laser flash photolysis of α-phenacyl alcohols are deprotonated under basic conditions to give ketyl radical anions that serve as electron injectors in inter- and intramolecular electron-transfer reactions. The 2,2-diphenylcyclopropyl group serves as a reporter. When an electron is injected and transferred such that spin character is adjacent to the reporter, cyclopropyl ring opening gives a readily detected diphenylalkyl radical.
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ISSN:1523-7060
1523-7052
DOI:10.1021/ol070593j