Di-organocobalt complexes of macrocyclic ligands

Trans influence of cyanide on the structural and electronic properties of a series of organocobaltIII(TIM) complexes

“…In particular, the structure of 6 is a rare example of a cobalt di-alkyl supported by a macrocyclic ligand. 26,27 In the structure of 5, the bond lengths within the macrocycle are in good agreement with the structure of the precursor compound, [Co(TIM)Cl 2 ] + , although a small decrease in the Co-N av bond length in 5 is observed from 1.926 [3] ([Co(TIM)Cl 2 ] + ) to 1.916 [3] Å (5). 28 This decrease is much more significant for the di-methyl complex, 6, which has a Co-N av bond length of 1.889 [4] Å.…”