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Laser‐Induced Fluorescence and Photoelectron‐Photon Coincidence Studies of 3,5‐Octadiyne Cation
Author(s) -
Maier John P.,
Misev Liubomir,
Thommen Fritz
Publication year - 1981
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.19810640703
Subject(s) - chemistry , excited state , fluorescence , coincidence , atomic physics , relaxation (psychology) , excitation , vibrational energy relaxation , laser , laser induced fluorescence , optics , physics , medicine , psychology , social psychology , alternative medicine , pathology , quantum mechanics
3,5‐Octadiyne cation in its lowest excited state has been studied in the gas phase by laser‐induced fluorescence and photoelectron‐photon coincidence techniques. The excitation spectrum of the à 2 ″← 2 A″ transition has been obtained and yields vibrational frequencies of some of the fundamentals for the excited cationic state. The fluorescence quantum yields and lifetimes at selected energies within the à 2 A″ state have been determined from the coincidence measurements. This provides quantitative data for the discussion of the relaxation behaviour of such an excited open‐shell cation.