Direct observation of the splitting of the vibrationless level in a Jahn-Teller active state in deuterobenzenes of D2h symmetry
1977; Elsevier BV; Volume: 48; Issue: 1 Linguagem: Inglês
10.1016/0009-2614(77)80226-1
ISSN1873-4448
AutoresJ. Itah, B. Katz, Benjamin Scharf,
Tópico(s)Molecular Spectroscopy and Structure
ResumoWe have succeeded to record the splitting of the 00 band in the δ = 0.3 Rydberg series of benzene converning to the second ionization limit at 11.49 eV upon reducing the vibrational symmetry to D2h. This measurement is the first direct observation of a splitting of a vibrationless level of a Jahn-Teller active state caused by a vibrational perturbation. This observation leads one inevitably to ascribe the second ionization process in benzene to a removal of an electron from the 3e2g(σ) orbital.
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