Van der Velden, G.p.m.; De Boer, E.; Veeman, W.s.:
Optical and magnetic properties of disubstituted benzophenones with lowest 3np* states.
1981
In: Chemical Physics (Chem.Phys.), Jg. 56 (1981), Heft 2, S. 181 - 188
Artikel/Aufsatz in Zeitschrift1981Chemie
Titel:
Optical and magnetic properties of disubstituted benzophenones with lowest 3np* states.
Autor(in):
Van der Velden, G.p.m.; De Boer, E.; Veeman, W.s.LSF
Erscheinungsjahr
1981

Abstract:

The phosphorescence and optically detected magnetic resonance (ODMR) spectra of 4,4'-dimethoxy-4,4'-dimethyl-3,3'-dibromo- and 2,2'-diazabenzophenone were measured. For 4,4'-dimethoxybenzophenone 2 X-traps were found. The zero-field splitting (ZFS) parameters and the phosphorescence decay consts. indicate that the lowest triplet states have mainly np* character. The effects of the substituents on the ZFS parameters cannot be explained via spin-orbit coupling with only nearby excited states.