Structural Organization of Nickel(II),Zinc(II), and Copper(II)Complexes with Diisobutyldithiocarbamate:EPR,~(13)C and ~(15)N CP/MAS NMR,and X-Ray Diffraction Studies

摘要

The structures and spectroscopic properties of nickel(II),zinc(II),and copper(II)complexes with dibutyl- and diisobutyldithiocarbamate were studied by EPR and ~(13)C and ~(15)N CP/MAS NMR spectroscopy and X-ray diffraction analysis.According to the EPR data,copper(II)forms mononuclear [~(63/65)Cu{S_2CNR_2}_2] and heterobinuclear complexes [~(63/65)CuZn{S_2CNR_2}_4] under magnetic dilution conditions.The isomeric forms of nickel(II)and zinc(II)diisobutyldithiocarbamates were detected by ~(13)C and ~(15)N NMR spectroscopy.The crystalline zinc(II)diisobutyldithiocarbamate was found to have a unique structural organization with alternating mononuclear [Zn{S_2CN(i-C_4H_9)_2}_2] and binuclear molecular forms [Zn_2{S_2CN(i-C_4H_9)_2}_4] in the 1:1 ratio.