Ligand bond, cobalt

The chloride ions that appear outside the brackets represent chloride anions that balance the positive charge on the coordination compound. When a coordination compound dissolves in water, the ligands (inside the brackets) remain bound to the metal cation, but the nonligands (outside the brackets) exist as individual ions. These chloride ions precipitate in the presence of silver ions. The chloride ions inside the brackets, which are ligands bonded to the cobalt center, do not precipitate as AgCl. 

All borabenzene-metal complexes investigated structurally so far show very similar patterns for the ligand geometry (Table I) and for the metal-ligand bonding (Table II) only the cobalt complex 6 deserves separate consideration (see below). 

The strength of the cobalt-carbon bond is very much influenced by the nature of the other five ligands. If these ligands are varied, cobalt complexes may be obtained having different reactivities of the Co-C bond (45). 

The nature of the axial ligand in the trans position to the R group. For a series of cobalt methyl complexes it was shown, that ligands in the trans position affect the cobalt-carbon bond... 

Table 2.5. The influence of 1,3-nonbonded interactions on the ideal metal-ligand bond distance of chro-mium(III), cobalt(III), and nickel(II) hexaamines.

---