Materials Data on InAgGeSe4 by Materials Project
AgInGeSe4 crystallizes in the tetragonal I-4 space group. The structure is three-dimensional. Ag1+ is bonded to four equivalent Se2- atoms to form AgSe4 tetrahedra that share corners with four equivalent InSe4 tetrahedra and corners with four equivalent GeSe4 tetrahedra. All Ag–Se bond lengths are 2.69 Å. In3+ is bonded to four equivalent Se2- atoms to form InSe4 tetrahedra that share corners with four equivalent AgSe4 tetrahedra and corners with four equivalent GeSe4 tetrahedra. All In–Se bond lengths are 2.65 Å. Ge4+ is bonded to four equivalent Se2- atoms to form GeSe4 tetrahedra that share corners with four equivalent AgSe4 tetrahedra and corners with four equivalent InSe4 tetrahedra. All Ge–Se bond lengths are 2.42 Å. Se2- is bonded in a trigonal non-coplanar geometry to one Ag1+, one In3+, and one Ge4+ atom.