YWF5 crystallizes in the orthorhombic Immm space group. Y(1) is bonded to two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms to form YF6 octahedra that share corners with two equivalent Y(1)F6 octahedra and corners with six equivalent W(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. W(1) is bonded to two equivalent F(2) and four F(1,1) atoms to form distorted WF6 octahedra that share corners with six equivalent Y(1)F6 octahedra and edges with two equivalent W(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. There are four inequivalent F sites. In the first F site, F(1) is bonded in a trigonal planar geometry to one Y(1) and two equivalent W(1) atoms. In the second F site, F(2) is bonded in a linear geometry to one Y(1) and one W(1) atom. In the third F site, F(3) is bonded in a linear geometry to two equivalent Y(1) atoms. In the fourth F site, F(1) is bonded in a trigonal planar geometry to one Y(1) and two equivalent W(1) atoms.
YWF5 crystallizes in the orthorhombic Immm space group. Y(1) is bonded to two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms to form YF6 octahedra that share corners with two equivalent Y(1)F6 octahedra and corners with six equivalent W(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. Both Y(1)-F(1) bond lengths are 2.22 Å. Both Y(1)-F(2) bond lengths are 2.19 Å. Both Y(1)-F(3) bond lengths are 2.16 Å. W(1) is bonded to two equivalent F(2) and four F(1,1) atoms to form distorted WF6 octahedra that share corners with six equivalent Y(1)F6 octahedra and edges with two equivalent W(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. Both W(1)-F(2) bond lengths are 2.14 Å. All W(1)-F(1,1) bond lengths are 2.51 Å. There are four inequivalent F sites. In the first F site, F(1) is bonded in a trigonal planar geometry to one Y(1) and two equivalent W(1) atoms. In the second F site, F(2) is bonded in a linear geometry to one Y(1) and one W(1) atom. In the third F site, F(3) is bonded in a linear geometry to two equivalent Y(1) atoms. In the fourth F site, F(1) is bonded in a trigonal planar geometry to one Y(1) and two equivalent W(1) atoms. The F(1)-Y(1) bond length is 2.22 Å.