Cs4Cu3F10 crystallizes in the triclinic P-1 space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 11-coordinate geometry to one F(5), one F(6), two equivalent F(1), two equivalent F(2), two equivalent F(3), and three equivalent F(4) atoms. In the second Cs site, Cs(2) is bonded in a 10-coordinate geometry to one F(5), one F(6), two equivalent F(1), two equivalent F(2), two equivalent F(3), and two equivalent F(4) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms to form distorted face-sharing CuF6 octahedra. In the second Cu site, Cu(2) is bonded to one F(1), one F(2), one F(3), one F(4), one F(5), and one F(6) atom to form a mixture of corner and face-sharing CuF6 octahedra. The corner-sharing octahedra are not tilted. There are six inequivalent F sites. In the first F site, F(1) is bonded in a 6-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), one Cu(1), and one Cu(2) atom. In the second F site, F(2) is bonded in a 6-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), one Cu(1), and one Cu(2) atom. In the third F site, F(3) is bonded in a 6-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), one Cu(1), and one Cu(2) atom. In the fourth F site, F(4) is bonded in a distorted single-bond geometry to two equivalent Cs(2), three equivalent Cs(1), and one Cu(2) atom. In the fifth F site, F(5) is bonded in a distorted linear geometry to two equivalent Cs(1), two equivalent Cs(2), and two equivalent Cu(2) atoms. In the sixth F site, F(6) is bonded in a distorted linear geometry to two equivalent Cs(1), two equivalent Cs(2), and two equivalent Cu(2) atoms.
Cs4Cu3F10 crystallizes in the triclinic P-1 space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 11-coordinate geometry to one F(5), one F(6), two equivalent F(1), two equivalent F(2), two equivalent F(3), and three equivalent F(4) atoms. The Cs(1)-F(5) bond length is 3.17 Å. The Cs(1)-F(6) bond length is 3.16 Å. There is one shorter (3.11 Å) and one longer (3.15 Å) Cs(1)-F(1) bond length. There is one shorter (3.11 Å) and one longer (3.15 Å) Cs(1)-F(2) bond length. There is one shorter (3.21 Å) and one longer (3.22 Å) Cs(1)-F(3) bond length. There are two shorter (3.16 Å) and one longer (3.50 Å) Cs(1)-F(4) bond length. In the second Cs site, Cs(2) is bonded in a 10-coordinate geometry to one F(5), one F(6), two equivalent F(1), two equivalent F(2), two equivalent F(3), and two equivalent F(4) atoms. The Cs(2)-F(5) bond length is 3.12 Å. The Cs(2)-F(6) bond length is 3.12 Å. There is one shorter (3.02 Å) and one longer (3.16 Å) Cs(2)-F(1) bond length. There is one shorter (3.02 Å) and one longer (3.15 Å) Cs(2)-F(2) bond length. There is one shorter (3.15 Å) and one longer (3.16 Å) Cs(2)-F(3) bond length. There is one shorter (2.98 Å) and one longer (3.10 Å) Cs(2)-F(4) bond length. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms to form distorted face-sharing CuF6 octahedra. Both Cu(1)-F(1) bond lengths are 1.92 Å. Both Cu(1)-F(2) bond lengths are 1.92 Å. Both Cu(1)-F(3) bond lengths are 2.34 Å. In the second Cu site, Cu(2) is bonded to one F(1), one F(2), one F(3), one F(4), one F(5), and one F(6) atom to form a mixture of corner and face-sharing CuF6 octahedra. The corner-sharing octahedra are not tilted. The Cu(2)-F(1) bond length is 2.24 Å. The Cu(2)-F(2) bond length is 2.24 Å. The Cu(2)-F(3) bond length is 1.91 Å. The Cu(2)-F(4) bond length is 1.87 Å. The Cu(2)-F(5) bond length is 2.03 Å. The Cu(2)-F(6) bond length is 2.03 Å. There are six inequivalent F sites. In the first F site, F(1) is bonded in a 6-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), one Cu(1), and one Cu(2) atom. In the second F site, F(2) is bonded in a 6-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), one Cu(1), and one Cu(2) atom. In the third F site, F(3) is bonded in a 6-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), one Cu(1), and one Cu(2) atom. In the fourth F site, F(4) is bonded in a distorted single-bond geometry to two equivalent Cs(2), three equivalent Cs(1), and one Cu(2) atom. In the fifth F site, F(5) is bonded in a distorted linear geometry to two equivalent Cs(1), two equivalent Cs(2), and two equivalent Cu(2) atoms. In the sixth F site, F(6) is bonded in a distorted linear geometry to two equivalent Cs(1), two equivalent Cs(2), and two equivalent Cu(2) atoms.