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Studies on Radical Cations I. Molecular and electronic structure of [3]radialene cation produced by γ‐irradiation in condensed phase
Author(s) -
Bally Thomas,
Haselbach Edwin,
Lanyiova Zuzana,
Baertschi Peter
Publication year - 1978
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19780610720
Subject(s) - chemistry , cyclopropane , irradiation , phase (matter) , relaxation (psychology) , softening , matrix (chemical analysis) , photochemistry , tris , pentane , crystallography , organic chemistry , ring (chemistry) , chromatography , social psychology , psychology , biochemistry , physics , nuclear physics , statistics , mathematics
γ‐Irradiation of tris (methylidene)‐cyclopropane (‘[3]radialene’) 1 in a rigid electron scavenging matrix (butylchoride/i‐pentane, 1:1) at 77 K leads to formation of its molecular cation 1 + . Slight softening of the matrix by a temperature increase of 3–5 K results in formation of a newly absorbing species, tentatively assigned arising from structrral relaxation of 1 + by π‐bond rotation: