Materials Data on K2Te3 by Materials Project
K2Te3 is Magnesium tetraboride-like structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. K is bonded in a 8-coordinate geometry to eight Te atoms. There are a spread of K–Te bond distances ranging from 3.56–3.96 Å. There are three inequivalent Te sites. In the first Te site, Te is bonded in a 7-coordinate geometry to six equivalent K and one Te atom. The Te–Te bond length is 2.89 Å. In the second Te site, Te is bonded in a 7-coordinate geometry to six equivalent K and one Te atom. The Te–Te bond length is 2.89 Å. In the third Te site, Te is bonded in a 6-coordinate geometry to four equivalent K and two Te atoms.
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