Materials Data on Sr(InCu)2 by Materials Project
Sr(CuIn)2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sr is bonded in a 8-coordinate geometry to eight equivalent Cu and eight equivalent In atoms. All Sr–Cu bond lengths are 3.37 Å. All Sr–In bond lengths are 3.64 Å. Cu is bonded in a 9-coordinate geometry to four equivalent Sr, one Cu, and four equivalent In atoms. The Cu–Cu bond length is 2.50 Å. All Cu–In bond lengths are 2.75 Å. In is bonded to four equivalent Sr and four equivalent Cu atoms to form a mixture of distorted edge, face, and corner-sharing InSr4Cu4 tetrahedra.