Luminescence Spectra of the Mixed Chloro-Bromo-Osmates(IV), [OsClnBr6-n]2-, n = 1-5

Abstract

Abstract The Γ1(A1g) → Γ1 (3T1g) luminescence spectra of mixed Cs2[OsClnBr6-n], n = 1-5, have been measured between 15 800 and 17 000 cm-1 at 10 K. As a host lattice Cs2[TeCl6] has been doped with purely isolated chloro-bromo-osmates(IV), including the geometrical isomers with n = 2, 3, 4. The assignments of the electronic transitions and their extensive vibronic structure are discussed.