YCuF5 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 corner-sharing YF6 octahedra. The corner-sharing octahedra are not tilted. Cu(1) is bonded in a distorted linear geometry to two equivalent F(2) and four F(1,1) atoms. 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 Cu(1) atoms. In the second F site, F(2) is bonded in a linear geometry to one Y(1) and one Cu(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 Cu(1) atoms.
YCuF5 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 corner-sharing YF6 octahedra. The corner-sharing octahedra are not tilted. Both Y(1)-F(1) bond lengths are 2.18 Å. Both Y(1)-F(2) bond lengths are 2.21 Å. Both Y(1)-F(3) bond lengths are 2.12 Å. Cu(1) is bonded in a distorted linear geometry to two equivalent F(2) and four F(1,1) atoms. Both Cu(1)-F(2) bond lengths are 1.82 Å. All Cu(1)-F(1,1) bond lengths are 2.48 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 Cu(1) atoms. In the second F site, F(2) is bonded in a linear geometry to one Y(1) and one Cu(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 Cu(1) atoms. The F(1)-Y(1) bond length is 2.18 Å.