Materials Data on Zn2GaSe4 by Materials Project
Zn2GaSe4 crystallizes in the tetragonal I-42m space group. The structure is three-dimensional. Zn2+ is bonded to four equivalent Se+1.75- atoms to form ZnSe4 tetrahedra that share corners with four equivalent ZnSe4 tetrahedra and corners with four equivalent GaSe4 tetrahedra. All Zn–Se bond lengths are 2.47 Å. Ga3+ is bonded to four equivalent Se+1.75- atoms to form GaSe4 tetrahedra that share corners with eight equivalent ZnSe4 tetrahedra. All Ga–Se bond lengths are 2.45 Å. Se+1.75- is bonded in a trigonal non-coplanar geometry to two equivalent Zn2+ and one Ga3+ atom.
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