Materials Data on Cr2CdSe4 by Materials Project
CdCr2Se4 is Spinel structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Cr3+ is bonded to six equivalent Se2- atoms to form CrSe6 octahedra that share corners with six equivalent CdSe4 tetrahedra and edges with six equivalent CrSe6 octahedra. All Cr–Se bond lengths are 2.56 Å. Cd2+ is bonded to four equivalent Se2- atoms to form CdSe4 tetrahedra that share corners with twelve equivalent CrSe6 octahedra. The corner-sharing octahedral tilt angles are 60°. All Cd–Se bond lengths are 2.65 Å. Se2- is bonded to three equivalent Cr3+ and one Cd2+ atom to form a mixture of distorted edge and corner-sharing SeCr3Cd tetrahedra.
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