Pm3Ga is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Pm(1) is bonded to eight equivalent Pm(1) and four equivalent Ga(1) atoms to form distorted PmPm8Ga4 cuboctahedra that share corners with twelve equivalent Pm(1)Pm8Ga4 cuboctahedra, edges with eight equivalent Ga(1)Pm12 cuboctahedra, edges with sixteen equivalent Pm(1)Pm8Ga4 cuboctahedra, faces with four equivalent Ga(1)Pm12 cuboctahedra, and faces with fourteen equivalent Pm(1)Pm8Ga4 cuboctahedra. Ga(1) is bonded to twelve equivalent Pm(1) atoms to form GaPm12 cuboctahedra that share corners with twelve equivalent Ga(1)Pm12 cuboctahedra, edges with twenty-four equivalent Pm(1)Pm8Ga4 cuboctahedra, faces with six equivalent Ga(1)Pm12 cuboctahedra, and faces with twelve equivalent Pm(1)Pm8Ga4 cuboctahedra.
Pm3Ga is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Pm(1) is bonded to eight equivalent Pm(1) and four equivalent Ga(1) atoms to form distorted PmPm8Ga4 cuboctahedra that share corners with twelve equivalent Pm(1)Pm8Ga4 cuboctahedra, edges with eight equivalent Ga(1)Pm12 cuboctahedra, edges with sixteen equivalent Pm(1)Pm8Ga4 cuboctahedra, faces with four equivalent Ga(1)Pm12 cuboctahedra, and faces with fourteen equivalent Pm(1)Pm8Ga4 cuboctahedra. All Pm(1)-Pm(1) bond lengths are 3.40 Å. All Pm(1)-Ga(1) bond lengths are 3.40 Å. Ga(1) is bonded to twelve equivalent Pm(1) atoms to form GaPm12 cuboctahedra that share corners with twelve equivalent Ga(1)Pm12 cuboctahedra, edges with twenty-four equivalent Pm(1)Pm8Ga4 cuboctahedra, faces with six equivalent Ga(1)Pm12 cuboctahedra, and faces with twelve equivalent Pm(1)Pm8Ga4 cuboctahedra.