BaYF5 crystallizes in the orthorhombic P2_12_12_1 space group. Ba(1) is bonded in a 10-coordinate geometry to two equivalent F(1), two equivalent F(2), two equivalent F(3), two equivalent F(4), and two equivalent F(5) atoms. Y(1) is bonded to one F(1), one F(2), one F(3), two equivalent F(4), and two equivalent F(5) atoms to form distorted edge-sharing YF7 pentagonal bipyramids. There are five inequivalent F sites. In the first F site, F(1) is bonded in a 3-coordinate geometry to two equivalent Ba(1) and one Y(1) atom. In the second F site, F(2) is bonded in a distorted trigonal planar geometry to two equivalent Ba(1) and one Y(1) atom. In the third F site, F(3) is bonded in a 3-coordinate geometry to two equivalent Ba(1) and one Y(1) atom. In the fourth F site, F(4) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ba(1) and two equivalent Y(1) atoms. In the fifth F site, F(5) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ba(1) and two equivalent Y(1) atoms.
BaYF5 crystallizes in the orthorhombic P2_12_12_1 space group. Ba(1) is bonded in a 10-coordinate geometry to two equivalent F(1), two equivalent F(2), two equivalent F(3), two equivalent F(4), and two equivalent F(5) atoms. There is one shorter (2.68 Å) and one longer (3.05 Å) Ba(1)-F(1) bond length. There is one shorter (2.62 Å) and one longer (2.83 Å) Ba(1)-F(2) bond length. There is one shorter (2.85 Å) and one longer (2.99 Å) Ba(1)-F(3) bond length. There is one shorter (2.76 Å) and one longer (3.27 Å) Ba(1)-F(4) bond length. There is one shorter (2.76 Å) and one longer (3.28 Å) Ba(1)-F(5) bond length. Y(1) is bonded to one F(1), one F(2), one F(3), two equivalent F(4), and two equivalent F(5) atoms to form distorted edge-sharing YF7 pentagonal bipyramids. The Y(1)-F(1) bond length is 2.18 Å. The Y(1)-F(2) bond length is 2.19 Å. The Y(1)-F(3) bond length is 2.19 Å. There is one shorter (2.28 Å) and one longer (2.29 Å) Y(1)-F(4) bond length. There is one shorter (2.28 Å) and one longer (2.31 Å) Y(1)-F(5) bond length. There are five inequivalent F sites. In the first F site, F(1) is bonded in a 3-coordinate geometry to two equivalent Ba(1) and one Y(1) atom. In the second F site, F(2) is bonded in a distorted trigonal planar geometry to two equivalent Ba(1) and one Y(1) atom. In the third F site, F(3) is bonded in a 3-coordinate geometry to two equivalent Ba(1) and one Y(1) atom. In the fourth F site, F(4) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ba(1) and two equivalent Y(1) atoms. In the fifth F site, F(5) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ba(1) and two equivalent Y(1) atoms.