U6Rh20P13 crystallizes in the hexagonal P-6 space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 16-coordinate geometry to one Rh(4), one Rh(7), two equivalent Rh(1), two equivalent Rh(3), two equivalent Rh(5), two equivalent Rh(8), two equivalent P(3), and four equivalent P(1) atoms. In the second U site, U(2) is bonded in a 16-coordinate geometry to one Rh(6), one Rh(8), two equivalent Rh(1), two equivalent Rh(2), two equivalent Rh(3), two equivalent Rh(4), two equivalent P(2), and four equivalent P(4) atoms. There are eight inequivalent Rh sites. In the first Rh site, Rh(7) is bonded in a 4-coordinate geometry to one U(1), one Rh(4), two equivalent Rh(8), one P(2), one P(5), and two equivalent P(3) atoms. In the second Rh site, Rh(8) is bonded in a 12-coordinate geometry to one U(2), two equivalent U(1), one Rh(6), two equivalent Rh(3), two equivalent Rh(7), one P(1), one P(3), and two equivalent P(2) atoms. In the third Rh site, Rh(1) is bonded in a 12-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent Rh(3), two equivalent Rh(4), one P(1), one P(3), and two equivalent P(4) atoms. In the fourth Rh site, Rh(2) is bonded in a 9-coordinate geometry to six equivalent U(2) and three equivalent P(4) atoms. In the fifth Rh site, Rh(3) is bonded in a 12-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent Rh(1), two equivalent Rh(8), one P(2), one P(4), and two equivalent P(1) atoms. In the sixth Rh site, Rh(4) is bonded in a 12-coordinate geometry to one U(1), two equivalent U(2), one Rh(7), two equivalent Rh(1), two equivalent Rh(6), one P(2), one P(4), and two equivalent P(3) atoms. In the seventh Rh site, Rh(5) is bonded in a 9-coordinate geometry to six equivalent U(1) and three equivalent P(1) atoms. In the eighth Rh site, Rh(6) is bonded in a 3-coordinate geometry to one U(2), one Rh(8), two equivalent Rh(4), one P(3), and two equivalent P(2) atoms. There are five inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to four equivalent U(1), one Rh(1), one Rh(5), one Rh(8), and two equivalent Rh(3) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to two equivalent U(2), one Rh(3), one Rh(4), one Rh(7), two equivalent Rh(6), and two equivalent Rh(8) atoms. In the third P site, P(3) is bonded in a 9-coordinate geometry to two equivalent U(1), one Rh(1), one Rh(6), one Rh(8), two equivalent Rh(4), and two equivalent Rh(7) atoms. In the fourth P site, P(4) is bonded in a 9-coordinate geometry to four equivalent U(2), one Rh(2), one Rh(3), one Rh(4), and two equivalent Rh(1) atoms. In the fifth P site, P(5) is bonded in a distorted trigonal planar geometry to three equivalent Rh(7) atoms.
U6Rh20P13 crystallizes in the hexagonal P-6 space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 16-coordinate geometry to one Rh(4), one Rh(7), two equivalent Rh(1), two equivalent Rh(3), two equivalent Rh(5), two equivalent Rh(8), two equivalent P(3), and four equivalent P(1) atoms. The U(1)-Rh(4) bond length is 3.32 Å. The U(1)-Rh(7) bond length is 3.35 Å. Both U(1)-Rh(1) bond lengths are 3.20 Å. There is one shorter (3.28 Å) and one longer (3.34 Å) U(1)-Rh(3) bond length. Both U(1)-Rh(5) bond lengths are 3.03 Å. Both U(1)-Rh(8) bond lengths are 3.11 Å. Both U(1)-P(3) bond lengths are 2.98 Å. There are two shorter (2.99 Å) and two longer (3.08 Å) U(1)-P(1) bond lengths. In the second U site, U(2) is bonded in a 16-coordinate geometry to one Rh(6), one Rh(8), two equivalent Rh(1), two equivalent Rh(2), two equivalent Rh(3), two equivalent Rh(4), two equivalent P(2), and four equivalent P(4) atoms. The U(2)-Rh(6) bond length is 3.38 Å. The U(2)-Rh(8) bond length is 3.35 Å. There is one shorter (3.27 Å) and one longer (3.32 Å) U(2)-Rh(1) bond length. Both U(2)-Rh(2) bond lengths are 3.05 Å. Both U(2)-Rh(3) bond lengths are 3.18 Å. Both U(2)-Rh(4) bond lengths are 3.13 Å. Both U(2)-P(2) bond lengths are 2.94 Å. There are two shorter (3.02 Å) and two longer (3.07 Å) U(2)-P(4) bond lengths. There are eight inequivalent Rh sites. In the first Rh site, Rh(7) is bonded in a 4-coordinate geometry to one U(1), one Rh(4), two equivalent Rh(8), one P(2), one P(5), and two equivalent P(3) atoms. The Rh(7)-Rh(4) bond length is 2.83 Å. Both Rh(7)-Rh(8) bond lengths are 2.76 Å. The Rh(7)-P(2) bond length is 2.34 Å. The Rh(7)-P(5) bond length is 2.24 Å. Both Rh(7)-P(3) bond lengths are 2.52 Å. In the second Rh site, Rh(8) is bonded in a 12-coordinate geometry to one U(2), two equivalent U(1), one Rh(6), two equivalent Rh(3), two equivalent Rh(7), one P(1), one P(3), and two equivalent P(2) atoms. The Rh(8)-Rh(6) bond length is 2.86 Å. Both Rh(8)-Rh(3) bond lengths are 2.76 Å. The Rh(8)-P(1) bond length is 2.34 Å. The Rh(8)-P(3) bond length is 2.40 Å. Both Rh(8)-P(2) bond lengths are 2.56 Å. In the third Rh site, Rh(1) is bonded in a 12-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent Rh(3), two equivalent Rh(4), one P(1), one P(3), and two equivalent P(4) atoms. Both Rh(1)-Rh(3) bond lengths are 2.78 Å. Both Rh(1)-Rh(4) bond lengths are 2.76 Å. The Rh(1)-P(1) bond length is 2.40 Å. The Rh(1)-P(3) bond length is 2.46 Å. Both Rh(1)-P(4) bond lengths are 2.40 Å. In the fourth Rh site, Rh(2) is bonded in a 9-coordinate geometry to six equivalent U(2) and three equivalent P(4) atoms. All Rh(2)-P(4) bond lengths are 2.33 Å. In the fifth Rh site, Rh(3) is bonded in a 12-coordinate geometry to two equivalent U(1), two equivalent U(2), two equivalent Rh(1), two equivalent Rh(8), one P(2), one P(4), and two equivalent P(1) atoms. The Rh(3)-P(2) bond length is 2.46 Å. The Rh(3)-P(4) bond length is 2.42 Å. Both Rh(3)-P(1) bond lengths are 2.41 Å. In the sixth Rh site, Rh(4) is bonded in a 12-coordinate geometry to one U(1), two equivalent U(2), one Rh(7), two equivalent Rh(1), two equivalent Rh(6), one P(2), one P(4), and two equivalent P(3) atoms. Both Rh(4)-Rh(6) bond lengths are 2.82 Å. The Rh(4)-P(2) bond length is 2.39 Å. The Rh(4)-P(4) bond length is 2.35 Å. Both Rh(4)-P(3) bond lengths are 2.49 Å. In the seventh Rh site, Rh(5) is bonded in a 9-coordinate geometry to six equivalent U(1) and three equivalent P(1) atoms. All Rh(5)-P(1) bond lengths are 2.34 Å. In the eighth Rh site, Rh(6) is bonded in a 3-coordinate geometry to one U(2), one Rh(8), two equivalent Rh(4), one P(3), and two equivalent P(2) atoms. The Rh(6)-P(3) bond length is 2.35 Å. Both Rh(6)-P(2) bond lengths are 2.53 Å. There are five inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to four equivalent U(1), one Rh(1), one Rh(5), one Rh(8), and two equivalent Rh(3) atoms. In the second P site, P(2) is bonded in a 9-coordinate geometry to two equivalent U(2), one Rh(3), one Rh(4), one Rh(7), two equivalent Rh(6), and two equivalent Rh(8) atoms. In the third P site, P(3) is bonded in a 9-coordinate geometry to two equivalent U(1), one Rh(1), one Rh(6), one Rh(8), two equivalent Rh(4), and two equivalent Rh(7) atoms. In the fourth P site, P(4) is bonded in a 9-coordinate geometry to four equivalent U(2), one Rh(2), one Rh(3), one Rh(4), and two equivalent Rh(1) atoms. In the fifth P site, P(5) is bonded in a distorted trigonal planar geometry to three equivalent Rh(7) atoms.