Isolation and characterisation of products from the reactions between [Co2(nta)2(μ-OH)2]2? and different ligands. The crystal structure of [Co(nta)(N,N-Et2en)]

The crystal structure of Co(nta)(N,N-Et₂en)] (nta = nitrilotriacetate and N,N-Et₂en = N,N-diethylethylenediamine) was determined from three-dimensional X-ray diffraction data. The substituted nitrogen of N,N-diethylethylenediamine is bonded trans to the nta nitrogen with the Co—N_{(N,N Et2en)}= 2.011(5) and Co—N_(nta) = 1.950(4) Å while the cis Co—N bond is 1.953(4) Å. The Co—O bond lengths are 1.905(2) and 1.884(4) Å respectively.