Sr2MnCO3F5 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(3), one F(1), one F(2), one F(3), and one F(5) atom. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one O(1), one O(3), one F(1), one F(2), one F(5), two equivalent F(3), and two equivalent F(4) atoms. Mn(1) is bonded in an octahedral geometry to one O(2), one F(1), one F(2), one F(3), one F(4), and one F(5) atom. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(1), and one C(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(1), and one C(1) atom. There are five inequivalent F sites. In the first F site, F(4) is bonded in a 3-coordinate geometry to two equivalent Sr(2) and one Mn(1) atom. In the second F site, F(5) is bonded in a distorted trigonal planar geometry to one Sr(1), one Sr(2), and one Mn(1) atom. In the third F site, F(1) is bonded in a trigonal planar geometry to one Sr(1), one Sr(2), and one Mn(1) atom. In the fourth F site, F(2) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one Mn(1) atom. In the fifth F site, F(3) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Sr(2), and one Mn(1) atom.
Sr2MnCO3F5 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(3), one F(1), one F(2), one F(3), and one F(5) atom. There is one shorter (2.63 Å) and one longer (2.77 Å) Sr(1)-O(1) bond length. There is one shorter (2.71 Å) and one longer (2.72 Å) Sr(1)-O(3) bond length. The Sr(1)-F(1) bond length is 2.44 Å. The Sr(1)-F(2) bond length is 2.61 Å. The Sr(1)-F(3) bond length is 2.66 Å. The Sr(1)-F(5) bond length is 2.44 Å. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one O(1), one O(3), one F(1), one F(2), one F(5), two equivalent F(3), and two equivalent F(4) atoms. The Sr(2)-O(1) bond length is 2.64 Å. The Sr(2)-O(3) bond length is 2.76 Å. The Sr(2)-F(1) bond length is 2.49 Å. The Sr(2)-F(2) bond length is 2.55 Å. The Sr(2)-F(5) bond length is 2.57 Å. There is one shorter (2.70 Å) and one longer (2.74 Å) Sr(2)-F(3) bond length. There is one shorter (2.47 Å) and one longer (2.80 Å) Sr(2)-F(4) bond length. Mn(1) is bonded in an octahedral geometry to one O(2), one F(1), one F(2), one F(3), one F(4), and one F(5) atom. The Mn(1)-O(2) bond length is 1.92 Å. The Mn(1)-F(1) bond length is 2.06 Å. The Mn(1)-F(2) bond length is 1.90 Å. The Mn(1)-F(3) bond length is 1.98 Å. The Mn(1)-F(4) bond length is 1.93 Å. The Mn(1)-F(5) bond length is 2.12 Å. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. The C(1)-O(1) bond length is 1.29 Å. The C(1)-O(2) bond length is 1.31 Å. The C(1)-O(3) bond length is 1.29 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(1), and one C(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Sr(2), two equivalent Sr(1), and one C(1) atom. There are five inequivalent F sites. In the first F site, F(4) is bonded in a 3-coordinate geometry to two equivalent Sr(2) and one Mn(1) atom. In the second F site, F(5) is bonded in a distorted trigonal planar geometry to one Sr(1), one Sr(2), and one Mn(1) atom. In the third F site, F(1) is bonded in a trigonal planar geometry to one Sr(1), one Sr(2), and one Mn(1) atom. In the fourth F site, F(2) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one Mn(1) atom. In the fifth F site, F(3) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Sr(2), and one Mn(1) atom.