(MgCrSF4)2F2 crystallizes in the triclinic P1 space group. The structure consists of two hydrofluoric acid atoms inside a MgCrSF4 framework. In the MgCrSF4 framework, there are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted single-bond geometry to one F(3), one F(7), and one F(8) atom. In the second Mg site, Mg(2) is bonded in a 1-coordinate geometry to one S(2), one F(1), one F(5), and one F(6) atom. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 2-coordinate geometry to one F(4), one F(5), and one F(7) atom. In the second Cr site, Cr(2) is bonded in a 4-coordinate geometry to one F(1), one F(3), one F(6), and one F(8) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 2-coordinate geometry to one F(2) and one F(5) atom. In the second S site, S(2) is bonded in a 2-coordinate geometry to one Mg(2) and one F(2) atom. There are eight inequivalent F sites. In the first F site, F(1) is bonded in a distorted bent 120 degrees geometry to one Mg(2) and one Cr(2) atom. In the second F site, F(2) is bonded in a single-bond geometry to one S(1) and one S(2) atom. In the third F site, F(3) is bonded in a bent 120 degrees geometry to one Mg(1) and one Cr(2) atom. In the fourth F site, F(4) is bonded in a single-bond geometry to one Cr(1) atom. In the fifth F site, F(5) is bonded in a 3-coordinate geometry to one Mg(2), one Cr(1), and one S(1) atom. In the sixth F site, F(6) is bonded in a distorted bent 150 degrees geometry to one Mg(2) and one Cr(2) atom. In the seventh F site, F(7) is bonded in a bent 150 degrees geometry to one Mg(1) and one Cr(1) atom. In the eighth F site, F(8) is bonded in a linear geometry to one Mg(1) and one Cr(2) atom.
(MgCrSF4)2F2 crystallizes in the triclinic P1 space group. The structure consists of two hydrofluoric acid atoms inside a MgCrSF4 framework. In the MgCrSF4 framework, there are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted single-bond geometry to one F(3), one F(7), and one F(8) atom. The Mg(1)-F(3) bond length is 2.05 Å. The Mg(1)-F(7) bond length is 1.26 Å. The Mg(1)-F(8) bond length is 2.16 Å. In the second Mg site, Mg(2) is bonded in a 1-coordinate geometry to one S(2), one F(1), one F(5), and one F(6) atom. The Mg(2)-S(2) bond length is 2.83 Å. The Mg(2)-F(1) bond length is 1.96 Å. The Mg(2)-F(5) bond length is 1.22 Å. The Mg(2)-F(6) bond length is 2.19 Å. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 2-coordinate geometry to one F(4), one F(5), and one F(7) atom. The Cr(1)-F(4) bond length is 2.47 Å. The Cr(1)-F(5) bond length is 1.61 Å. The Cr(1)-F(7) bond length is 1.54 Å. In the second Cr site, Cr(2) is bonded in a 4-coordinate geometry to one F(1), one F(3), one F(6), and one F(8) atom. The Cr(2)-F(1) bond length is 1.49 Å. The Cr(2)-F(3) bond length is 1.52 Å. The Cr(2)-F(6) bond length is 1.90 Å. The Cr(2)-F(8) bond length is 2.03 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 2-coordinate geometry to one F(2) and one F(5) atom. The S(1)-F(2) bond length is 1.74 Å. The S(1)-F(5) bond length is 2.04 Å. In the second S site, S(2) is bonded in a 2-coordinate geometry to one Mg(2) and one F(2) atom. The S(2)-F(2) bond length is 2.36 Å. There are eight inequivalent F sites. In the first F site, F(1) is bonded in a distorted bent 120 degrees geometry to one Mg(2) and one Cr(2) atom. In the second F site, F(2) is bonded in a single-bond geometry to one S(1) and one S(2) atom. In the third F site, F(3) is bonded in a bent 120 degrees geometry to one Mg(1) and one Cr(2) atom. In the fourth F site, F(4) is bonded in a single-bond geometry to one Cr(1) atom. In the fifth F site, F(5) is bonded in a 3-coordinate geometry to one Mg(2), one Cr(1), and one S(1) atom. In the sixth F site, F(6) is bonded in a distorted bent 150 degrees geometry to one Mg(2) and one Cr(2) atom. In the seventh F site, F(7) is bonded in a bent 150 degrees geometry to one Mg(1) and one Cr(1) atom. In the eighth F site, F(8) is bonded in a linear geometry to one Mg(1) and one Cr(2) atom.