Ba(RhSi)2 is alpha Pu-derived structured and crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded in a 15-coordinate geometry to three equivalent Rh(2), four equivalent Rh(1), four equivalent Si(1), and four equivalent Si(2) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 4-coordinate geometry to four equivalent Ba(1), one Si(1), and three equivalent Si(2) atoms. In the second Rh site, Rh(2) is bonded in a 4-coordinate geometry to three equivalent Ba(1), one Si(2), and three equivalent Si(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 4-coordinate geometry to four equivalent Ba(1), one Rh(1), and three equivalent Rh(2) atoms. In the second Si site, Si(2) is bonded in a 4-coordinate geometry to four equivalent Ba(1), one Rh(2), and three equivalent Rh(1) atoms.
Ba(RhSi)2 is alpha Pu-derived structured and crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded in a 15-coordinate geometry to three equivalent Rh(2), four equivalent Rh(1), four equivalent Si(1), and four equivalent Si(2) atoms. There are a spread of Ba(1)-Rh(2) bond distances ranging from 3.23-3.53 Å. There are a spread of Ba(1)-Rh(1) bond distances ranging from 3.51-3.74 Å. There are a spread of Ba(1)-Si(1) bond distances ranging from 3.38-3.73 Å. There are a spread of Ba(1)-Si(2) bond distances ranging from 3.37-3.79 Å. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 4-coordinate geometry to four equivalent Ba(1), one Si(1), and three equivalent Si(2) atoms. The Rh(1)-Si(1) bond length is 2.41 Å. There are a spread of Rh(1)-Si(2) bond distances ranging from 2.32-2.35 Å. In the second Rh site, Rh(2) is bonded in a 4-coordinate geometry to three equivalent Ba(1), one Si(2), and three equivalent Si(1) atoms. The Rh(2)-Si(2) bond length is 2.35 Å. There are a spread of Rh(2)-Si(1) bond distances ranging from 2.37-2.42 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 4-coordinate geometry to four equivalent Ba(1), one Rh(1), and three equivalent Rh(2) atoms. In the second Si site, Si(2) is bonded in a 4-coordinate geometry to four equivalent Ba(1), one Rh(2), and three equivalent Rh(1) atoms.