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The Oxyallyl Diradical: Observation of the Singlet and Triplet State by Negative‐Ion Photoelectron Spectroscopy
Author(s) -
Bettinger Holger F.
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200905482
Subject(s) - diradical , singlet state , triplet state , x ray photoelectron spectroscopy , photochemistry , ion , chemistry , spectroscopy , molecule , ring (chemistry) , atomic physics , nuclear magnetic resonance , physics , excited state , organic chemistry , quantum mechanics
A molecule on a slippery slope : Lineberger et al. finally managed to observe the oxyallyl diradical 1 using negative ion photoelectron spectroscopy. The singlet state of the oxyallyl diradical is lower in energy than the triplet and corresponds to the transition state for ring closure to cyclopropanone 2 .