Novel mixed tris-complexes of cobalt(III) with α- and β-amino-acids: isolation, adsorption chromatography, and absorption spectra
- 1 January 1977
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 19,p. 676-678
- https://doi.org/10.1039/c39770000676
Abstract
All eight possible geometrical isomers of the mixed cobalt(III) complexes containing 5-membered glycinato- and 6-membered β-alaninato-metal chelate rings, [Co(β-Ala)x(Gly)3–x](I; x= 1 or 2), have been isolated by adsorption chromatography on a cation exchanger in the H+-form owing to the difference in basicities of carbonyl groups hydrogen-bonded to the resin; surprising dissimilarites in absorption spectra of meridional isomers arise from the differences in Co–O π-interactions influenced by the conformations of the 6-membered rings.This publication has 0 references indexed in Scilit: