MANGANESE(II), NICKEL(II) AND COPPER(II) COMPLEXES OF (1,3-BIS-AMINOMETHYL)CYCLOHEXANE-N,N,N',N'-TETRAKISBENZIMIDAZOLE

Mn(II), Ni(II) and Cu(II) complexes of (1,3-bis-aminomethyl)-cyclohexane-N,N,N',N'-tetrakisbenzimidazole (CDTB) have been prepared and characterized by spectral techniques. The complexes are monomeric and pseudo-octahedral, as evidenced by their e.p.r. spectra and analytical data. Parameters alpha2, beta2, gamma2 and kappa for Cu(II) complexes, and the crystal field splitting parameter (10 Dq) together with the Nephelauxetic ratio (beta), for Ni(II) complexes, are reported.