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Resonance Raman spectra of transient free radicals using stopped flow multichannel and rapid scan methods
Author(s) -
Merlin J. C.,
Lorriaux J.L.,
Hester R. E.
Publication year - 1981
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250110517
Subject(s) - raman spectroscopy , dabco , radical , chemistry , photochemistry , analytical chemistry (journal) , spectrometer , spectral line , resonance raman spectroscopy , resonance (particle physics) , nuclear magnetic resonance , catalysis , atomic physics , organic chemistry , optics , physics , astronomy
Chemical oxidations of 1,4‐dimethoxybenzene (DMOB) and diazabicyclooctane (DABCO) in solution result in the generation of short‐lived free radical cations which have strong visible absorptions. These have been used for the excitation of resonance‐enhanced Raman spectra. The DMOB +˙ radicals were produced in a stopped‐flow apparatus linked with an optical multichannel Raman instrument. The DABCO +˙ species was produced by rapid mixing and its spectrum determined by rapid scanning of a conventional spectrometer. Both kinetic data and vibrational spectra are produced by these methods.