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Photoexcited Triplet State Kinetics Studied by Electron Paramagnetic Resonance Spectroscopy
Author(s) -
Hintze Christian,
Steiner Ulrich E.,
Drescher Malte
Publication year - 2017
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201600868
Subject(s) - electron paramagnetic resonance , excited state , triplet state , phosphorescence , spectroscopy , chemistry , electron paramagnetic resonance spectroscopy , resonance (particle physics) , pulsed epr , atomic physics , nuclear magnetic resonance , fluorescence , physics , spin echo , medicine , quantum mechanics , radiology , magnetic resonance imaging
Following the first evidence of the triplet character of the optically excited phosphorescent state of naphthalene by Hutchison and Mangum in 1958,[1][C. A. J. Hutchison, 1958] electron paramagnetic resonance (EPR) spectroscopy has become widely used to study and understand the properties and kinetic characteristics of excited triplet states. This minireview gives an overview over EPR techniques based on continuous microwave methods using lock‐in or direct detection as well as pulsed EPR methods with respect to their suitability for kinetic studies of excited triplet states. A short historical overview of the experimental and theoretical developments in this field of research as well as of the triplet systems studied, with a final focus on fullerenes, is given. This may help newcomers to the field as a guide to the relevant literature.