K2TaCuF6 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 6-coordinate geometry to two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms. Ta(1) is bonded in a distorted octahedral geometry to two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms. Cu(1) is bonded in a linear geometry to two equivalent F(1) atoms. There are three inequivalent F sites. In the first F site, F(1) is bonded in a 4-coordinate geometry to two equivalent K(1), one Ta(1), and one Cu(1) atom. In the second F site, F(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent K(1) and one Ta(1) atom. In the third F site, F(3) is bonded in a distorted trigonal non-coplanar geometry to two equivalent K(1) and one Ta(1) atom.
K2TaCuF6 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 6-coordinate geometry to two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms. There is one shorter (2.81 Å) and one longer (2.83 Å) K(1)-F(1) bond length. There is one shorter (2.71 Å) and one longer (2.73 Å) K(1)-F(2) bond length. There is one shorter (2.68 Å) and one longer (2.71 Å) K(1)-F(3) bond length. Ta(1) is bonded in a distorted octahedral geometry to two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms. Both Ta(1)-F(1) bond lengths are 2.25 Å. Both Ta(1)-F(2) bond lengths are 2.03 Å. Both Ta(1)-F(3) bond lengths are 2.02 Å. Cu(1) is bonded in a linear geometry to two equivalent F(1) atoms. Both Cu(1)-F(1) bond lengths are 1.88 Å. There are three inequivalent F sites. In the first F site, F(1) is bonded in a 4-coordinate geometry to two equivalent K(1), one Ta(1), and one Cu(1) atom. In the second F site, F(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent K(1) and one Ta(1) atom. In the third F site, F(3) is bonded in a distorted trigonal non-coplanar geometry to two equivalent K(1) and one Ta(1) atom.