Local surrounding of cobalt(II) in dithiocarbamate complexes, their magnetic and spectral properties

Abstract

[Co(S2CNRR’)2] complexes [R = R’ = CH3, C2H5, C3H7, C4H9, or CH2C6H5; RR’ = (CH2)5, (CH2)6, or (CH2)2O(CH2)2] were prepared via interaction of CoCl2 with sodium dithiocarbamates in aqueous medium (pH 6–7). [Co(S2CNRR’)2] are low-spin compounds (μeff 2.19–2.45 μB) with distorted square-planar geometry of the CoS4 coordination node. The Co-S bonds length is 2.22–2.26 A, and the distance between cobalt and carbon atoms is 2.73–2.74 A.