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Radical Cations of Sterically Hindered Bicycloalkylidenes: An Experimental Contribution Concerning the Planarity of the Ethylene Radical Cation
Author(s) -
Gerson Fabian,
Lopez Javier,
Krebs Adolf,
Rüger Wolfgang
Publication year - 1981
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198100951
Subject(s) - planarity testing , cyclic voltammetry , ethylene , steric effects , chemistry , radical ion , ring (chemistry) , planar , spectroscopy , photochemistry , crystallography , stereochemistry , organic chemistry , ion , electrochemistry , catalysis , electrode , physics , computer graphics (images) , quantum mechanics , computer science
In order to derive inrormation on the geometry of the ethylene radical cation , the highly substituted analogues (1) — (3) were prepared from the neutral compounds with central double bonds. Cyclic voltammetry and ESR spectroscopy indicate that the planar arrangement becomes more difficult to achieve with increasing ring size.— (3) is particularly stable.