Pr2Re3B6 is Magnesium tetraboride-derived structured and crystallizes in the monoclinic C2/c space group. Pr(1) is bonded in a 9-coordinate geometry to three equivalent B(1), three equivalent B(3), and four equivalent B(2) atoms. There are two inequivalent Re sites. In the first Re site, Re(1) is bonded in a 8-coordinate geometry to two equivalent B(1), two equivalent B(2), and four equivalent B(3) atoms. In the second Re site, Re(2) is bonded in a 6-coordinate geometry to one B(3), two equivalent B(2), and three equivalent B(1) atoms. There are three inequivalent B sites. In the first B site, B(1) is bonded in a 8-coordinate geometry to three equivalent Pr(1), one Re(1), three equivalent Re(2), and one B(3) atom. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Pr(1), one Re(1), two equivalent Re(2), one B(2), and one B(3) atom. In the third B site, B(3) is bonded in a 9-coordinate geometry to three equivalent Pr(1), one Re(2), two equivalent Re(1), one B(1), one B(2), and one B(3) atom.
Pr2Re3B6 is Magnesium tetraboride-derived structured and crystallizes in the monoclinic C2/c space group. Pr(1) is bonded in a 9-coordinate geometry to three equivalent B(1), three equivalent B(3), and four equivalent B(2) atoms. There are a spread of Pr(1)-B(1) bond distances ranging from 2.76-3.02 Å. There are a spread of Pr(1)-B(3) bond distances ranging from 2.78-2.95 Å. There are a spread of Pr(1)-B(2) bond distances ranging from 2.78-3.19 Å. There are two inequivalent Re sites. In the first Re site, Re(1) is bonded in a 8-coordinate geometry to two equivalent B(1), two equivalent B(2), and four equivalent B(3) atoms. Both Re(1)-B(1) bond lengths are 2.28 Å. Both Re(1)-B(2) bond lengths are 2.42 Å. There are two shorter (2.26 Å) and two longer (2.32 Å) Re(1)-B(3) bond lengths. In the second Re site, Re(2) is bonded in a 6-coordinate geometry to one B(3), two equivalent B(2), and three equivalent B(1) atoms. The Re(2)-B(3) bond length is 2.23 Å. There is one shorter (2.24 Å) and one longer (2.29 Å) Re(2)-B(2) bond length. There are a spread of Re(2)-B(1) bond distances ranging from 2.12-2.31 Å. There are three inequivalent B sites. In the first B site, B(1) is bonded in a 8-coordinate geometry to three equivalent Pr(1), one Re(1), three equivalent Re(2), and one B(3) atom. The B(1)-B(3) bond length is 1.84 Å. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Pr(1), one Re(1), two equivalent Re(2), one B(2), and one B(3) atom. The B(2)-B(2) bond length is 1.86 Å. The B(2)-B(3) bond length is 1.84 Å. In the third B site, B(3) is bonded in a 9-coordinate geometry to three equivalent Pr(1), one Re(2), two equivalent Re(1), one B(1), one B(2), and one B(3) atom. The B(3)-B(3) bond length is 1.81 Å.