Superposition model analysis from polarized electronic absorption spectra of Co2+ in trigonally distorted octahedra in brucite-type Co(OH)2

摘要: Polarized electronic absorption spectra of Co2+ in trigonally compressed octahedra brucite-type Co(OH)2 have been measured at 290 and 90 K by microscope-spectrometric techniques analysed terms the superposition model (SM) crystal fields. The resulting SM interelectronic repulsion parameters are 4 = 5260, 2 4920, Racah B 825, C 3550 cm-1 5320, 3900, 830, 3500 (R0 2.1115 A; fixed exponential spin-orbit t4 5, t2 3, ζ 500 cm-1). Together with a recent analysis Li2Co3(SeO3)4, k refined for further confine magnitude hitherto unknown `correct' future application to structurally and/or chemically less well defined systems.