Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 9, 1985
Previous Article Next Article

Synthesis, characterization and acid hydrolysis of [N,N-bis(2-aminoethyl)-1,2-ethanediamine]bis(solvent)cobalt(III) complexes

Abstract

Synthesis of the precursor [N,N-bis(2-aminoethyl)-1,2-ethanediamine]bis(trifluoromethanesulphonato-O)cobalt(III) trifluoromethanesulphonate allowed facile synthesis of the bis(dimethyl sulphoxide), bis(dimethylformamide), bis(trimethyl phosphate), and bis(acetonitrile) complexes by solvolysis of the trifluoromethanesulphonato-complex in dry solvents. The new bis(solvent) complexes were characterized by spectroscopic methods and by microanalysis. In aqueous acid, they hydrolyse in two consecutive steps which differ in rate by a factor of less than ten. While the complexes are stereochemically rigid as a consequence of co-ordination of the N,N-bis(2-aminoethyl)-1,2-ethanediamine tripodal ligand, the observed rate constants are composite terms since the two solvent ligands are in non-equivalent sites, and initial ligand loss from both sites occurs. N.m.r. experiments reveal that this loss proceeds at similar rates for each site.

Back to tab navigation

Article information


J. Chem. Soc., Dalton Trans., 1985, 1923-1927
Article type
Paper

Synthesis, characterization and acid hydrolysis of [N,N-bis(2-aminoethyl)-1,2-ethanediamine]bis(solvent)cobalt(III) complexes

N. J. Curtis and G. A. Lawrance, J. Chem. Soc., Dalton Trans., 1985, 1923
DOI: 10.1039/DT9850001923

Search articles by author

Spotlight

Advertisements