column within the periodic table. Many exhibit properties of potential value in battery technology, such as intercalation and electrical conductivity, although most applications focus on the less toxic and lighter disulfides, e.g. TiS₂.

Structure

Within the titanium-selenium system, many stoichiometries have been identified. Titanium diselenide crystallizes with the CdI₂ -type structure, in which the octahedral

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