Ba2Mn2F11 crystallizes in the trigonal P3_2 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 11-coordinate geometry to one F(10), one F(11), one F(2), one F(3), one F(6), one F(7), one F(8), two equivalent F(4), and two equivalent F(5) atoms. In the second Ba site, Ba(2) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(2), one F(3), one F(4), one F(5), one F(7), one F(8), and one F(9) atom. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one F(1), one F(2), one F(3), one F(4), and one F(7) atom to form distorted corner-sharing MnF5 square pyramids. The corner-sharing octahedral tilt angles are 53°. In the second Mn site, Mn(2) is bonded to one F(1), one F(10), one F(11), one F(6), one F(8), and one F(9) atom to form corner-sharing MnF6 octahedra. There are eleven inequivalent F sites. In the first F site, F(11) is bonded in a distorted single-bond geometry to one Ba(1) and one Mn(2) atom. In the second F site, F(1) is bonded in a bent 120 degrees geometry to one Ba(2), one Mn(1), and one Mn(2) atom. In the third F site, F(2) is bonded in a distorted single-bond geometry to one Ba(1), one Ba(2), and one Mn(1) atom. In the fourth F site, F(3) is bonded in a distorted single-bond geometry to one Ba(1), one Ba(2), and one Mn(1) atom. In the fifth F site, F(4) is bonded in a single-bond geometry to one Ba(2), two equivalent Ba(1), and one Mn(1) atom. In the sixth F site, F(5) is bonded in a distorted bent 120 degrees geometry to one Ba(2) and two equivalent Ba(1) atoms. In the seventh F site, F(6) is bonded in a single-bond geometry to one Ba(1) and one Mn(2) atom. In the eighth F site, F(7) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one Mn(1) atom. In the ninth F site, F(8) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one Mn(2) atom. In the tenth F site, F(9) is bonded in a distorted bent 120 degrees geometry to one Ba(2) and one Mn(2) atom. In the eleventh F site, F(10) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one Mn(2) atom.
Ba2Mn2F11 crystallizes in the trigonal P3_2 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 11-coordinate geometry to one F(10), one F(11), one F(2), one F(3), one F(6), one F(7), one F(8), two equivalent F(4), and two equivalent F(5) atoms. The Ba(1)-F(10) bond length is 3.21 Å. The Ba(1)-F(11) bond length is 2.75 Å. The Ba(1)-F(2) bond length is 2.91 Å. The Ba(1)-F(3) bond length is 2.79 Å. The Ba(1)-F(6) bond length is 2.96 Å. The Ba(1)-F(7) bond length is 2.96 Å. The Ba(1)-F(8) bond length is 3.15 Å. There is one shorter (2.94 Å) and one longer (2.96 Å) Ba(1)-F(4) bond length. There is one shorter (2.55 Å) and one longer (3.25 Å) Ba(1)-F(5) bond length. In the second Ba site, Ba(2) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(2), one F(3), one F(4), one F(5), one F(7), one F(8), and one F(9) atom. The Ba(2)-F(1) bond length is 3.23 Å. The Ba(2)-F(10) bond length is 3.11 Å. The Ba(2)-F(2) bond length is 2.88 Å. The Ba(2)-F(3) bond length is 3.03 Å. The Ba(2)-F(4) bond length is 3.09 Å. The Ba(2)-F(5) bond length is 2.43 Å. The Ba(2)-F(7) bond length is 2.59 Å. The Ba(2)-F(8) bond length is 3.02 Å. The Ba(2)-F(9) bond length is 2.64 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one F(1), one F(2), one F(3), one F(4), and one F(7) atom to form distorted corner-sharing MnF5 square pyramids. The corner-sharing octahedral tilt angles are 53°. The Mn(1)-F(1) bond length is 1.98 Å. The Mn(1)-F(2) bond length is 1.87 Å. The Mn(1)-F(3) bond length is 1.84 Å. The Mn(1)-F(4) bond length is 1.89 Å. The Mn(1)-F(7) bond length is 2.02 Å. In the second Mn site, Mn(2) is bonded to one F(1), one F(10), one F(11), one F(6), one F(8), and one F(9) atom to form corner-sharing MnF6 octahedra. The Mn(2)-F(1) bond length is 1.90 Å. The Mn(2)-F(10) bond length is 1.82 Å. The Mn(2)-F(11) bond length is 1.84 Å. The Mn(2)-F(6) bond length is 1.82 Å. The Mn(2)-F(8) bond length is 1.88 Å. The Mn(2)-F(9) bond length is 1.83 Å. There are eleven inequivalent F sites. In the first F site, F(11) is bonded in a distorted single-bond geometry to one Ba(1) and one Mn(2) atom. In the second F site, F(1) is bonded in a bent 120 degrees geometry to one Ba(2), one Mn(1), and one Mn(2) atom. In the third F site, F(2) is bonded in a distorted single-bond geometry to one Ba(1), one Ba(2), and one Mn(1) atom. In the fourth F site, F(3) is bonded in a distorted single-bond geometry to one Ba(1), one Ba(2), and one Mn(1) atom. In the fifth F site, F(4) is bonded in a single-bond geometry to one Ba(2), two equivalent Ba(1), and one Mn(1) atom. In the sixth F site, F(5) is bonded in a distorted bent 120 degrees geometry to one Ba(2) and two equivalent Ba(1) atoms. In the seventh F site, F(6) is bonded in a single-bond geometry to one Ba(1) and one Mn(2) atom. In the eighth F site, F(7) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one Mn(1) atom. In the ninth F site, F(8) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one Mn(2) atom. In the tenth F site, F(9) is bonded in a distorted bent 120 degrees geometry to one Ba(2) and one Mn(2) atom. In the eleventh F site, F(10) is bonded in a single-bond geometry to one Ba(1), one Ba(2), and one Mn(2) atom.