Rh4GaAs crystallizes in the orthorhombic Pmc2_1 space group. There are four inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 5-coordinate geometry to four equivalent Ga(1) and one As(1) atom. In the second Rh site, Rh(2) is bonded in a 3-coordinate geometry to one Ga(1) and two equivalent As(1) atoms. In the third Rh site, Rh(3) is bonded in a 4-coordinate geometry to two equivalent Ga(1) and two equivalent As(1) atoms. In the fourth Rh site, Rh(4) is bonded in a 4-coordinate geometry to three equivalent Ga(1) and two equivalent As(1) atoms. Ga(1) is bonded in a 10-coordinate geometry to one Rh(2), two equivalent Rh(3), three equivalent Rh(4), and four equivalent Rh(1) atoms. As(1) is bonded in a 7-coordinate geometry to one Rh(1), two equivalent Rh(2), two equivalent Rh(3), and two equivalent Rh(4) atoms.
Rh4GaAs crystallizes in the orthorhombic Pmc2_1 space group. There are four inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 5-coordinate geometry to four equivalent Ga(1) and one As(1) atom. There are two shorter (2.59 Å) and two longer (2.82 Å) Rh(1)-Ga(1) bond lengths. The Rh(1)-As(1) bond length is 2.52 Å. In the second Rh site, Rh(2) is bonded in a 3-coordinate geometry to one Ga(1) and two equivalent As(1) atoms. The Rh(2)-Ga(1) bond length is 2.62 Å. Both Rh(2)-As(1) bond lengths are 2.53 Å. In the third Rh site, Rh(3) is bonded in a 4-coordinate geometry to two equivalent Ga(1) and two equivalent As(1) atoms. Both Rh(3)-Ga(1) bond lengths are 2.62 Å. There is one shorter (2.50 Å) and one longer (2.52 Å) Rh(3)-As(1) bond length. In the fourth Rh site, Rh(4) is bonded in a 4-coordinate geometry to three equivalent Ga(1) and two equivalent As(1) atoms. There are a spread of Rh(4)-Ga(1) bond distances ranging from 2.51-3.10 Å. Both Rh(4)-As(1) bond lengths are 2.48 Å. Ga(1) is bonded in a 10-coordinate geometry to one Rh(2), two equivalent Rh(3), three equivalent Rh(4), and four equivalent Rh(1) atoms. As(1) is bonded in a 7-coordinate geometry to one Rh(1), two equivalent Rh(2), two equivalent Rh(3), and two equivalent Rh(4) atoms.