Van der Velden, G.p.m.; De Boer, E.; Veeman, W.s.:
Optical and magnetic properties of substituted benzophenones with lowest 3pp* states.
1980
In: Journal of Physical Chemistry (J.Phys.Chem.), Jg. 84 (1980), Heft 20, S. 2634 - 2641
Artikel/Aufsatz in Zeitschrift1980Chemie
Titel:
Optical and magnetic properties of substituted benzophenones with lowest 3pp* states.
Autor(in):
Van der Velden, G.p.m.; De Boer, E.; Veeman, W.s.LSF
Erscheinungsjahr
1980

Abstract:

Phosphorescence and optically detected magnetic-resonance (ODMR) expts. are reported for the lowest excited triplet state of 4-PhCOC6H4Ph, (4-PhC6H4)2CO (I), Ph2CO, 4-PhCOC6H4C6H4COPh-4, and 1-benzoyl- and 1,5-dibenzoylnaphtalene. These compds. were studied in single-crystal form and have a lowest pp* triplet state. The contribution of the magnetic dipole-dipole interactions to the zero-field splitting is detd. and compared with data for benzaldehydes and acetophenones. An isotope effect was seen in the ODMR spectrum of the triplet state of I 4,4'-dichloro deriv., which appeared to be present in I.