Cr2GaC is H-Phase structured and crystallizes in the hexagonal P6_3/mmc space group. Cr(1) is bonded in a 3-coordinate geometry to three equivalent Ga(1) and three equivalent C(1) atoms. Ga(1) is bonded to six equivalent Cr(1) and six equivalent Ga(1) atoms to form distorted GaCr6Ga6 cuboctahedra that share corners with six equivalent Ga(1)Cr6Ga6 cuboctahedra, corners with six equivalent C(1)Cr6 octahedra, edges with six equivalent Ga(1)Cr6Ga6 cuboctahedra, edges with six equivalent C(1)Cr6 octahedra, and faces with six equivalent Ga(1)Cr6Ga6 cuboctahedra. The corner-sharing octahedral tilt angles are 18°. C(1) is bonded to six equivalent Cr(1) atoms to form CCr6 octahedra that share corners with six equivalent Ga(1)Cr6Ga6 cuboctahedra, edges with six equivalent Ga(1)Cr6Ga6 cuboctahedra, and edges with six equivalent C(1)Cr6 octahedra.
Cr2GaC is H-Phase structured and crystallizes in the hexagonal P6_3/mmc space group. Cr(1) is bonded in a 3-coordinate geometry to three equivalent Ga(1) and three equivalent C(1) atoms. All Cr(1)-Ga(1) bond lengths are 2.62 Å. All Cr(1)-C(1) bond lengths are 1.96 Å. Ga(1) is bonded to six equivalent Cr(1) and six equivalent Ga(1) atoms to form distorted GaCr6Ga6 cuboctahedra that share corners with six equivalent Ga(1)Cr6Ga6 cuboctahedra, corners with six equivalent C(1)Cr6 octahedra, edges with six equivalent Ga(1)Cr6Ga6 cuboctahedra, edges with six equivalent C(1)Cr6 octahedra, and faces with six equivalent Ga(1)Cr6Ga6 cuboctahedra. The corner-sharing octahedral tilt angles are 18°. All Ga(1)-Ga(1) bond lengths are 2.84 Å. C(1) is bonded to six equivalent Cr(1) atoms to form CCr6 octahedra that share corners with six equivalent Ga(1)Cr6Ga6 cuboctahedra, edges with six equivalent Ga(1)Cr6Ga6 cuboctahedra, and edges with six equivalent C(1)Cr6 octahedra.