Behavior of Co2+ cations in the aqueous and alcoholic solution of CoCl2.6H2O

Abstract

We investigated the optical properties of Co2+ cations in the aqueous and alcoholic solution of CoCl2 6H2O at room temperature. We measured the absorption spectra of these solutions in the spectral region 395-800 nm. The Racah parameters and the exchange integrals of the aqueous complex [Co(H2O)6]2+ are calculated. The parameters Dt and Ds are also calculated on the basis of our experimental data. The parameters and which are connected with the symmetry of this complex are also determined.