Cr4OF11 crystallizes in the monoclinic P2 space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one F(1), one F(3), one F(4), one F(5), one F(6), and one F(7) atom to form CrF6 octahedra that share corners with two equivalent Cr(1)F6 octahedra and corners with four equivalent Cr(2)OF5 octahedra. The corner-sharing octahedral tilt angles range from 34-39°. In the second Cr site, Cr(2) is bonded to one O(1), one F(2), one F(4), one F(5), one F(6), and one F(7) atom to form CrOF5 octahedra that share corners with two equivalent Cr(2)OF5 octahedra and corners with four equivalent Cr(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 33-38°. O(1) is bonded in a bent 150 degrees geometry to two equivalent Cr(2) atoms. There are seven inequivalent F sites. In the first F site, F(1) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. In the second F site, F(2) is bonded in a bent 150 degrees geometry to two equivalent Cr(2) atoms. In the third F site, F(3) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. In the fourth F site, F(4) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(2) atom. In the fifth F site, F(5) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(2) atom. In the sixth F site, F(6) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(2) atom. In the seventh F site, F(7) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(2) atom.
Cr4OF11 crystallizes in the monoclinic P2 space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one F(1), one F(3), one F(4), one F(5), one F(6), and one F(7) atom to form CrF6 octahedra that share corners with two equivalent Cr(1)F6 octahedra and corners with four equivalent Cr(2)OF5 octahedra. The corner-sharing octahedral tilt angles range from 34-39°. The Cr(1)-F(1) bond length is 1.94 Å. The Cr(1)-F(3) bond length is 1.93 Å. The Cr(1)-F(4) bond length is 1.94 Å. The Cr(1)-F(5) bond length is 1.95 Å. The Cr(1)-F(6) bond length is 1.95 Å. The Cr(1)-F(7) bond length is 1.95 Å. In the second Cr site, Cr(2) is bonded to one O(1), one F(2), one F(4), one F(5), one F(6), and one F(7) atom to form CrOF5 octahedra that share corners with two equivalent Cr(2)OF5 octahedra and corners with four equivalent Cr(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 33-38°. The Cr(2)-O(1) bond length is 1.85 Å. The Cr(2)-F(2) bond length is 1.98 Å. The Cr(2)-F(4) bond length is 1.95 Å. The Cr(2)-F(5) bond length is 1.95 Å. The Cr(2)-F(6) bond length is 1.95 Å. The Cr(2)-F(7) bond length is 1.95 Å. O(1) is bonded in a bent 150 degrees geometry to two equivalent Cr(2) atoms. There are seven inequivalent F sites. In the first F site, F(1) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. In the second F site, F(2) is bonded in a bent 150 degrees geometry to two equivalent Cr(2) atoms. In the third F site, F(3) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. In the fourth F site, F(4) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(2) atom. In the fifth F site, F(5) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(2) atom. In the sixth F site, F(6) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(2) atom. In the seventh F site, F(7) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(2) atom.