MgCdTe2 is Lavarevi\'{c}ite-like structured and crystallizes in the trigonal R3m space group. Mg(1) is bonded to one Te(2) and three equivalent Te(1) atoms to form MgTe4 tetrahedra that share corners with six equivalent Mg(1)Te4 tetrahedra and corners with six equivalent Cd(1)Te4 tetrahedra. Cd(1) is bonded to one Te(1) and three equivalent Te(2) atoms to form CdTe4 tetrahedra that share corners with six equivalent Mg(1)Te4 tetrahedra and corners with six equivalent Cd(1)Te4 tetrahedra. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to three equivalent Mg(1) and one Cd(1) atom to form TeMg3Cd tetrahedra that share corners with six equivalent Te(1)Mg3Cd tetrahedra and corners with six equivalent Te(2)MgCd3 tetrahedra. In the second Te site, Te(2) is bonded to one Mg(1) and three equivalent Cd(1) atoms to form TeMgCd3 tetrahedra that share corners with six equivalent Te(1)Mg3Cd tetrahedra and corners with six equivalent Te(2)MgCd3 tetrahedra.
MgCdTe2 is Lavarevi\'{c}ite-like structured and crystallizes in the trigonal R3m space group. Mg(1) is bonded to one Te(2) and three equivalent Te(1) atoms to form MgTe4 tetrahedra that share corners with six equivalent Mg(1)Te4 tetrahedra and corners with six equivalent Cd(1)Te4 tetrahedra. The Mg(1)-Te(2) bond length is 2.80 Å. All Mg(1)-Te(1) bond lengths are 2.81 Å. Cd(1) is bonded to one Te(1) and three equivalent Te(2) atoms to form CdTe4 tetrahedra that share corners with six equivalent Mg(1)Te4 tetrahedra and corners with six equivalent Cd(1)Te4 tetrahedra. The Cd(1)-Te(1) bond length is 2.84 Å. All Cd(1)-Te(2) bond lengths are 2.84 Å. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to three equivalent Mg(1) and one Cd(1) atom to form TeMg3Cd tetrahedra that share corners with six equivalent Te(1)Mg3Cd tetrahedra and corners with six equivalent Te(2)MgCd3 tetrahedra. In the second Te site, Te(2) is bonded to one Mg(1) and three equivalent Cd(1) atoms to form TeMgCd3 tetrahedra that share corners with six equivalent Te(1)Mg3Cd tetrahedra and corners with six equivalent Te(2)MgCd3 tetrahedra.