Our group deals with the relationship between the crystalline and electronic structure of intercalate compounds based on TX2, T = Ti, Zr, Hf, X = S, Se, Te. It turned out that in all titanium dichalcogenides, intercalated metals occupy octahedrally coordinated by chalcogen positions of the interlayer gap. And in zirconium dichalcogenides, competition is observed for filling octa and tetra positions.

We were faced with the need to compare experimental data on the electronic structure of materials with octahedral and tetrahedrally coordinated chalcogen copper.

And I can not find any data on the photoemission spectra of metals (primarily copper) in a tetrahedral chalcogen environment.

If anyone knows such data, you can help me a lot.

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