CoGeAs2 is Chalcopyrite structured and crystallizes in the tetragonal I-42d space group. Co(1) is bonded to four equivalent As(1) atoms to form CoAs4 tetrahedra that share corners with four equivalent Co(1)As4 tetrahedra and corners with eight equivalent Ge(1)As4 tetrahedra. Ge(1) is bonded to four equivalent As(1) atoms to form GeAs4 tetrahedra that share corners with four equivalent Ge(1)As4 tetrahedra and corners with eight equivalent Co(1)As4 tetrahedra. As(1) is bonded to two equivalent Co(1) and two equivalent Ge(1) atoms to form corner-sharing AsCo2Ge2 tetrahedra.
CoGeAs2 is Chalcopyrite structured and crystallizes in the tetragonal I-42d space group. Co(1) is bonded to four equivalent As(1) atoms to form CoAs4 tetrahedra that share corners with four equivalent Co(1)As4 tetrahedra and corners with eight equivalent Ge(1)As4 tetrahedra. All Co(1)-As(1) bond lengths are 2.27 Å. Ge(1) is bonded to four equivalent As(1) atoms to form GeAs4 tetrahedra that share corners with four equivalent Ge(1)As4 tetrahedra and corners with eight equivalent Co(1)As4 tetrahedra. All Ge(1)-As(1) bond lengths are 2.53 Å. As(1) is bonded to two equivalent Co(1) and two equivalent Ge(1) atoms to form corner-sharing AsCo2Ge2 tetrahedra.