Izvorni znanstveni članak
Optical characterization of tetrahalomanganates and other manganese complexes containing iodine
Kosta Nikolić
; Institute of Physical Chemistry, Faculty of Pharmacy, University of Belgrade, 1 1000 Belgrade
Bernard Canny
; Laboratoire de Luminescence, Universite Paris VI, Paris, France
Daniel Curie
; Laboratoire de Luminescence, Universite Paris VI, Paris, France
Francis Gendron
; Laboratoire de Luminescence, Universite Paris VI, Paris, France
Claude Porte
; Laboratoire de Luminescence, Universite Paris VI, Paris, France
Sažetak
Shifts of the emission spectra between chlorine, bromine and iodine containing complexes are found to be hardly larger than temperature shifts, and definitely smaller than some accidental shifts as due for instance to the degree of hydratation of the material. On the other hand, the decrease of Racah parameters B and C, as given by absorption/excitation spectra, behaves as expected from elementary covalency considerations. The behaviour of the ratio C/B when the Mn2+ ions are embedded into the complexes shows an enhancement of the Trees parameter a, the magnitude of which depends mainly on the distorsion of the ligand structure from the regular tetrahedron or octahedron.
Ključne riječi
Hrčak ID:
329267
URI
Datum izdavanja:
7.1.1985.
Posjeta: 288 *