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Preparation and Characterization of an Air‐Tolerant 1,3‐Diphosphacyclobuten‐4‐yl Radical
Author(s) -
Ito Shigekazu,
Kikuchi Manabu,
Yoshifuji Masaaki,
Arduengo Anthony J.,
Konovalova Tatyana A.,
Kispert Lowell D.
Publication year - 2006
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.200600950
Subject(s) - electron paramagnetic resonance , steric effects , characterization (materials science) , chemistry , content (measure theory) , radical , computer science , stereochemistry , organic chemistry , nanotechnology , materials science , mathematics , physics , nuclear magnetic resonance , mathematical analysis
Radically stable : An extremely stable P‐heterocyclic organic radical was isolated after oxidation of a sterically encumbered 1,3‐diphosphacyclobutenyl anion generated from Mes*CP (Mes*=2,4,6‐ t Bu 3 C 6 H 2 ). The structure of the 1,3‐diphosphacyclobuten‐4‐yl radical, as determined by X‐ray analysis, was comparable to data obtained from EPR analysis and a computational model.