Materials Data on AlAgSe2 by Materials Project
AgAlSe2 is Chalcopyrite structured and crystallizes in the tetragonal I-42d 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 AgSe4 tetrahedra and corners with eight equivalent AlSe4 tetrahedra. All Ag–Se bond lengths are 2.68 Å. Al3+ is bonded to four equivalent Se2- atoms to form AlSe4 tetrahedra that share corners with four equivalent AlSe4 tetrahedra and corners with eight equivalent AgSe4 tetrahedra. All Al–Se bond lengths are 2.43 Å. Se2- is bonded to two equivalent Ag1+ and two equivalent Al3+ atoms to form corner-sharing SeAl2Ag2 tetrahedra.
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