The preparation and magnetic and spectral properties of some antiferromagnetic thioether complexes of titanium(III)
- 1 January 1968
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 198-204
- https://doi.org/10.1039/j19680000198
Abstract
The reactions of titanium(III) chloride, bromide, and iodide with dimethyl sulphide and tetrahydrothiophen yield the 1:2 adducts TiX3,2L which are in all cases soluble in the parent thioether but virtually insoluble in all other solvents. The dimethyl sulphide complexes are thermally unstable above room temperature. The complexes TiCl3,2L are strongly antiferromagnetic with Neél tempertures of 320°K, whereas the bromide and iodide complexes appear to have more normal magnetic behaviour over the range 320–80°K, although weak magnetic exchange cannot be ruled out. From magnetic and far-infrared spectral data it is concluded that the chloride complexes are probably dimers with a direct metal–metal bond whereas the bromide and iodide analogues are more likely to be halogen-bridged dimers in the solid state and to contain six-co-ordinate titanium(III).Keywords
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