Preparation, aquation, and hydrogen exchange of the chloropentakis(methylamine)cobalt(III) ion

Abstract

The preparations and hydrogen exchange of the complex ions Co(MeNH₂)₅Cl²⁺ and Co(MeNH₂)₅OH₂³⁺ are described. The rate of acidic hydrolysis of the former into the latter has been determined. Evidence is presented suggesting that the chloro ligand has a strong labilising influence upon the trans-amine's hydrogen whereas the aquo ligand does not, and that the cis-amine's hydrogen is relatively little affected in either case.