H. Kalkan et al., EPR study of the dynamic Jahn-Teller effect of Cu2+ in CdBa(HCOO)(4)centerdot 2H(2)O single crystals, Z NATURFO A, 53(12), 1998, pp. 945-950
Citations number
21
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES
Electron Paramagnetic Resonance spectra of Cu2+ doped into cadmium barium f
ormate dihydrate single crystal were studied at 300 K. The powder spectrum
of this material was studied at 300 to 133 K. The values of the g and A hyp
erfine tensors were found to be temperature dependent. The temperature depe
ndence of the Cu2+ EPR spectrum is discussed in terms of the dynamic Jahn-T
eller effect. The angular variation of the spectra indicates the substituti
on of the host Cd2+ with Cu2+. Th, spectra were fitted with a tetragonal sp
in-Hamiltonian, the parameters of which were determined at 300 K. The groun
d-state wave function of the copper complex has been constructed at 113 K a
nd 300 K.