Covalent compounds of quadrivalent transition metals. Part VI. Spectroscopic studies on titanium, vanadium, and zirconium diethyldithiocarbamates

Abstract

Data on the electronic, i.r., Raman, e.s.r., and mass spectra, and magnetochemistry of the compounds M(S₂CNEt₂)₄(M = Ti, V, or Zr), V(S₂CNEt₂)₃, VO(S₂CNEt₂)₃, and VO(S₂CNEt₂)₂ are reported and discussed. It is deduced that the compound V(S₂CNEt₂)₄, which readily dissociates on heating to V(S₂CNEt₂)₃, is eight-co-ordinate (dodecahedral). The electronic and anisotropic e.s.r. spectra of the compound V(S₂CNEt₂)₄ are interpreted in terms of crystal-field splitting of d orbitals in the V⁴⁺ ion.