Chiral metal complexes. 8. Chiroptical and 1H NMR studies on diastereoisomeric ternary complexes of Co(III) with 1,10-phenanthroline and R,R-tartaric acid or S-malic acid

Jill A. Chambers, Robert D. Gillard, Peter A. Williams*, Robert S. Vagg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The complexes Δ,Λ-[Co(1,10-phenanthroline)2-(oxyacidate)]·ClO4·3 1 2H2O, where oxyacidate is S(-)malate(2-) and R,R-(+)-tartrate(2-) have been synthesised, the diastereoisomers separated, and characterized. High resolution 1H NMR spectroscopy indicates that intramolecular hydrogen bonding may be responsible for the stabilities of the various diastereoisomers both in aqueous solution and in the solid state. The ratios of diastereoisomers obtained do not reflect thermodynamic equilibrium, and solubility phenomena may give rise to the patterns of isomeric distribution found here, and by other workers.

Original languageEnglish
Pages (from-to)263-268
Number of pages6
JournalInorganica Chimica Acta
Volume72
Issue numberC
DOIs
Publication statusPublished - 1983

Fingerprint Dive into the research topics of 'Chiral metal complexes. 8. Chiroptical and 1H NMR studies on diastereoisomeric ternary complexes of Co(III) with 1,10-phenanthroline and R,R-tartaric acid or S-malic acid'. Together they form a unique fingerprint.

Cite this