Oxalate complexes of tervalent titanium

Abstract

The properties of the compounds, KTi(C₂O₄)₂,2H₂O, NH₄Ti(C₂O₄)₂,2H₂O, and Ti₂(C₂O₄)₃,10H₂O have been investigated, and it has been shown that the first two compounds can readily be dehydrated without oxidation of the titanium. Spectra measurements indicate that the water is not co-ordinated to titanium in any of these compounds; a weak band at 12,800 cm.^–1 in the reflectance spectra suggests that titanium is in a weak octahedral field in each compound. Polymeric structures are proposed for the compounds in which titanium atoms are linked by shared oxalate groups, the weakness of the ligand field being attributed to this sharing.