InGaAs2 is Chalcopyrite-like structured and crystallizes in the trigonal R3m space group. In(1) is bonded to one As(2) and three equivalent As(1) atoms to form InAs4 tetrahedra that share corners with six equivalent In(1)As4 tetrahedra and corners with six equivalent Ga(1)As4 tetrahedra. Ga(1) is bonded to one As(1) and three equivalent As(2) atoms to form GaAs4 tetrahedra that share corners with six equivalent In(1)As4 tetrahedra and corners with six equivalent Ga(1)As4 tetrahedra. There are two inequivalent As sites. In the first As site, As(1) is bonded to three equivalent In(1) and one Ga(1) atom to form AsIn3Ga tetrahedra that share corners with six equivalent As(1)In3Ga tetrahedra and corners with six equivalent As(2)InGa3 tetrahedra. In the second As site, As(2) is bonded to one In(1) and three equivalent Ga(1) atoms to form AsInGa3 tetrahedra that share corners with six equivalent As(1)In3Ga tetrahedra and corners with six equivalent As(2)InGa3 tetrahedra.
InGaAs2 is Chalcopyrite-like structured and crystallizes in the trigonal R3m space group. In(1) is bonded to one As(2) and three equivalent As(1) atoms to form InAs4 tetrahedra that share corners with six equivalent In(1)As4 tetrahedra and corners with six equivalent Ga(1)As4 tetrahedra. The In(1)-As(2) bond length is 2.68 Å. All In(1)-As(1) bond lengths are 2.62 Å. Ga(1) is bonded to one As(1) and three equivalent As(2) atoms to form GaAs4 tetrahedra that share corners with six equivalent In(1)As4 tetrahedra and corners with six equivalent Ga(1)As4 tetrahedra. The Ga(1)-As(1) bond length is 2.48 Å. All Ga(1)-As(2) bond lengths are 2.56 Å. There are two inequivalent As sites. In the first As site, As(1) is bonded to three equivalent In(1) and one Ga(1) atom to form AsIn3Ga tetrahedra that share corners with six equivalent As(1)In3Ga tetrahedra and corners with six equivalent As(2)InGa3 tetrahedra. In the second As site, As(2) is bonded to one In(1) and three equivalent Ga(1) atoms to form AsInGa3 tetrahedra that share corners with six equivalent As(1)In3Ga tetrahedra and corners with six equivalent As(2)InGa3 tetrahedra.