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RhGa is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Rh is bonded in a body-centered cubic geometry to eight equivalent Ga atoms. All Rh–Ga bond lengths are 2.64 Å. Ga is bonded in a body-centered cubic geometry to eight equivalent Rh atoms.
Rh3Ga5 is Magnesium tetraboride-like structured and crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are three inequivalent Rh sites. In the first Rh site, Rh is bonded in a 8-coordinate geometry to eight Ga atoms. There are a spread of Rh–Ga bond distances ranging from 2.46–2.80 Å. In the second Rh site, Rh is bonded in a 8-coordinate geometry to eight Ga atoms. There are a spread of Rh–Ga bond distances ranging from 2.51–2.69 Å. In the third Rh site, Rh is bonded in a 8-coordinate geometry to eight Ga atoms. There are a spread of Rh–Ga bond distances ranging from 2.48–2.75 Å. There are five inequivalent Ga sites. In the first Ga site, Ga is bonded in a 4-coordinate geometry to four Rh atoms. In the second Ga site, Ga is bonded in a 4-coordinate geometry to four Rh atoms. In the third Ga site, Ga is bonded in a 5-coordinate geometry to five Rh atoms. In the fourth Ga site, Ga is bonded in a 6-coordinate geometry to six Rh atoms. In the fifth Ga site, Ga is bonded in a 5-coordinate geometry to five Rh atoms.
Rh2Ga9 crystallizes in the monoclinic Pc space group. The structure is three-dimensional. there are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 9-coordinate geometry to nine Ga atoms. There are a spread of Rh–Ga bond distances ranging from 2.49–2.67 Å. In the second Rh site, Rh is bonded in a 9-coordinate geometry to nine Ga atoms. There are a spread of Rh–Ga bond distances ranging from 2.49–2.72 Å. There are nine inequivalent Ga sites. In the first Ga site, Ga is bonded in a distorted linear geometry to two Rh atoms. In the second Ga site, Ga is bonded in a 2-coordinate geometry to two equivalent Rh atoms. In the third Ga site, Ga is bonded in a 2-coordinate geometry to two Rh atoms. In the fourth Ga site, Ga is bonded in a 2-coordinate geometry to two Rh atoms. In the fifth Ga site, Ga is bonded in a distorted bent 120 degrees geometry to two Rh atoms. In the sixth Ga site, Ga is bonded in a distorted bent 120 degrees geometry to two Rh atoms. In the seventh Ga site, Ga is bonded in a distorted bent 150 degrees geometry to two Rh atoms. In the eighth Ga site, Ga is bonded in a 2-coordinate geometry to two Rh atoms. In the ninth Ga site, Ga is bonded in a 2-coordinate geometry to two equivalent Rh atoms.
Rh3Ga is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Rh sites. In the first Rh site, Rh is bonded to eight Rh and four equivalent Ga atoms to form distorted RhGa4Rh8 cuboctahedra that share corners with twelve equivalent RhGa4Rh8 cuboctahedra, edges with eight equivalent GaRh12 cuboctahedra, edges with sixteen RhGa4Rh8 cuboctahedra, faces with four equivalent GaRh12 cuboctahedra, and faces with fourteen RhGa4Rh8 cuboctahedra. There are four shorter (2.71 Å) and four longer (2.75 Å) Rh–Rh bond lengths. All Rh–Ga bond lengths are 2.71 Å. In the second Rh site, Rh is bonded to eight equivalent Rh and four equivalent Ga atoms to form RhGa4Rh8 cuboctahedra that share corners with four equivalent RhGa4Rh8 cuboctahedra, corners with eight equivalent GaRh12 cuboctahedra, edges with twenty-four RhGa4Rh8 cuboctahedra, faces with six equivalent GaRh12 cuboctahedra, and faces with twelve RhGa4Rh8 cuboctahedra. All Rh–Ga bond lengths are 2.75 Å. Ga is bonded to twelve Rh atoms to form GaRh12 cuboctahedra that share corners with four equivalent GaRh12 cuboctahedra, corners with eight equivalent RhGa4Rh8 cuboctahedra, edges with eight equivalent GaRh12 cuboctahedra, edges with sixteen equivalent RhGa4Rh8 cuboctahedra, faces with four equivalent GaRh12 cuboctahedra, and faces with fourteen RhGa4Rh8 cuboctahedra.
RhGa3 crystallizes in the tetragonal P4_2/mnm space group. The structure is three-dimensional. Rh is bonded in a 8-coordinate geometry to eight Ga atoms. There are a spread of Rh–Ga bond distances ranging from 2.46–2.59 Å. There are two inequivalent Ga sites. In the first Ga site, Ga is bonded in a linear geometry to two equivalent Rh atoms. In the second Ga site, Ga is bonded in a 1-coordinate geometry to three equivalent Rh atoms.
RhGa3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Rh is bonded to twelve equivalent Ga atoms to form RhGa12 cuboctahedra that share corners with six equivalent RhGa12 cuboctahedra, corners with twelve equivalent GaGa8Rh4 cuboctahedra, edges with eighteen equivalent GaGa8Rh4 cuboctahedra, faces with eight equivalent RhGa12 cuboctahedra, and faces with twelve equivalent GaGa8Rh4 cuboctahedra. There are six shorter (2.71 Å) and six longer (2.90 Å) Rh–Ga bond lengths. Ga is bonded to four equivalent Rh and eight equivalent Ga atoms to form distorted GaGa8Rh4 cuboctahedra that share corners with four equivalent RhGa12 cuboctahedra, corners with fourteen equivalent GaGa8Rh4 cuboctahedra, edges with six equivalent RhGa12 cuboctahedra, edges with twelve equivalent GaGa8Rh4 cuboctahedra, faces with four equivalent RhGa12 cuboctahedra, and faces with sixteen equivalent GaGa8Rh4 cuboctahedra. There are a spread of Ga–Ga bond distances ranging from 2.64–2.94 Å.