Magnetic anisotropy and polarized electronic spectrum of dichlorotetrakis(thiourea)nickel(II)

The magnetic anistropies and powder susceptibilities of Ni(thiourea)4Cl2 are reported in the temperature range 80–300 K, together with single-crystal polarized electronic spectra at room- and liquid-helium-temperatures. The results are interpreted within a C4v crystal-field model including spin–orbit coupling.Estimates of the crystal-field radial parameters Dq, Dt, and Ds are made by fitting the magnetic and spectral results, as are values for the spin–orbit coupling and orbital reduction factors.