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Molecular Ions of Transient Species: Vinyl‐Alcohol Cation
Author(s) -
Albrecht Bruno,
Allan Michael,
Haselbach Edwin,
Neuhaus Louis,
Carrupt PierreAlain
Publication year - 1984
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.19840670127
Subject(s) - chemistry , ion , vinyl alcohol , ground state , alcohol , thermal decomposition , x ray photoelectron spectroscopy , decomposition , atomic physics , nuclear magnetic resonance , organic chemistry , polymer , physics
Vinyl alcohol 1 was prepared by thermolysis of cyclobutanol and its photoelectron spectrum was determined. I a 1= 9.18 eV and I v 1= 9.52 eV were found, the vibrations progression (ṽ = 1400 cm −1 ) for this lowest energy transition 1(X)→1 + (X̃) indicating significant skeletal changes in the ion. The question of the relative stability of the syn ( 1 s + )‐ vs. anti ‐ions ( 1 a + ) is discussed in the light of theoretical calculations. The energy of the second π‐state of 1 + is estimated at 13.6–14.1 eV above the ground state of 1 .
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