Y3WB7 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 11-coordinate geometry to two equivalent B(1), two equivalent B(3), three equivalent B(4), and four equivalent B(2) atoms. In the second Y site, Y(2) is bonded in a 10-coordinate geometry to four equivalent B(3) and six equivalent B(4) atoms. W(1) is bonded in a 10-coordinate geometry to two equivalent B(1), four equivalent B(2), and four equivalent B(3) atoms. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 8-coordinate geometry to four equivalent Y(1), two equivalent W(1), and two equivalent B(2) atoms. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Y(1), two equivalent W(1), one B(1), one B(2), and one B(3) atom. In the third B site, B(3) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(2), two equivalent W(1), one B(2), one B(3), and one B(4) atom. In the fourth B site, B(4) is bonded in a 9-coordinate geometry to three equivalent Y(1), three equivalent Y(2), one B(3), and two equivalent B(4) atoms.
Y3WB7 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 11-coordinate geometry to two equivalent B(1), two equivalent B(3), three equivalent B(4), and four equivalent B(2) atoms. Both Y(1)-B(1) bond lengths are 2.69 Å. Both Y(1)-B(3) bond lengths are 2.66 Å. There is one shorter (2.66 Å) and two longer (2.75 Å) Y(1)-B(4) bond lengths. There are two shorter (2.65 Å) and two longer (2.68 Å) Y(1)-B(2) bond lengths. In the second Y site, Y(2) is bonded in a 10-coordinate geometry to four equivalent B(3) and six equivalent B(4) atoms. All Y(2)-B(3) bond lengths are 2.65 Å. There are four shorter (2.70 Å) and two longer (2.73 Å) Y(2)-B(4) bond lengths. W(1) is bonded in a 10-coordinate geometry to two equivalent B(1), four equivalent B(2), and four equivalent B(3) atoms. Both W(1)-B(1) bond lengths are 2.33 Å. All W(1)-B(2) bond lengths are 2.35 Å. All W(1)-B(3) bond lengths are 2.37 Å. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 8-coordinate geometry to four equivalent Y(1), two equivalent W(1), and two equivalent B(2) atoms. Both B(1)-B(2) bond lengths are 1.81 Å. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Y(1), two equivalent W(1), one B(1), 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 1.91 Å. In the third B site, B(3) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(2), two equivalent W(1), one B(2), one B(3), and one B(4) atom. The B(3)-B(3) bond length is 1.95 Å. The B(3)-B(4) bond length is 1.84 Å. In the fourth B site, B(4) is bonded in a 9-coordinate geometry to three equivalent Y(1), three equivalent Y(2), one B(3), and two equivalent B(4) atoms. Both B(4)-B(4) bond lengths are 1.98 Å.