BaCaAgF7 crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded in a 11-coordinate geometry to one F(1), one F(2), one F(5), two equivalent F(3), two equivalent F(4), two equivalent F(6), and two equivalent F(7) atoms. Ca(1) is bonded to one F(1), one F(2), one F(3), one F(5), one F(6), and one F(7) atom to form distorted CaF6 octahedra that share corners with three equivalent Ag(1)F6 octahedra and  an edgeedge with one Ag(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 60-68°. Ag(1) 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 AgF6 octahedra that share corners with three equivalent Ca(1)F6 octahedra and  an edgeedge with one Ca(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 60-68°. There are seven inequivalent F sites. In the first F site, F(1) is bonded in a 3-coordinate geometry to one Ba(1), one Ca(1), and one Ag(1) atom. In the second F site, F(2) is bonded in a bent 120 degrees geometry to one Ba(1), one Ca(1), and one Ag(1) atom. In the third F site, F(3) is bonded in a 4-coordinate geometry to two equivalent Ba(1), one Ca(1), and one Ag(1) atom. In the fourth F site, F(4) is bonded in a distorted trigonal planar geometry to two equivalent Ba(1) and one Ag(1) atom. In the fifth F site, F(5) is bonded in a distorted trigonal non-coplanar geometry to one Ba(1), one Ca(1), and one Ag(1) atom. In the sixth F site, F(6) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Ca(1), and one Ag(1) atom. In the seventh F site, F(7) is bonded in a trigonal planar geometry to two equivalent Ba(1) and one Ca(1) atom.
BaCaAgF7 crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded in a 11-coordinate geometry to one F(1), one F(2), one F(5), two equivalent F(3), two equivalent F(4), two equivalent F(6), and two equivalent F(7) atoms. The Ba(1)-F(1) bond length is 2.96 Å. The Ba(1)-F(2) bond length is 3.34 Å. The Ba(1)-F(5) bond length is 2.90 Å. There is one shorter (2.92 Å) and one longer (3.24 Å) Ba(1)-F(3) bond length. There is one shorter (2.80 Å) and one longer (2.83 Å) Ba(1)-F(4) bond length. There is one shorter (3.14 Å) and one longer (3.18 Å) Ba(1)-F(6) bond length. There is one shorter (2.60 Å) and one longer (2.66 Å) Ba(1)-F(7) bond length. Ca(1) is bonded to one F(1), one F(2), one F(3), one F(5), one F(6), and one F(7) atom to form distorted CaF6 octahedra that share corners with three equivalent Ag(1)F6 octahedra and  an edgeedge with one Ag(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 60-68°. The Ca(1)-F(1) bond length is 2.26 Å. The Ca(1)-F(2) bond length is 2.26 Å. The Ca(1)-F(3) bond length is 2.42 Å. The Ca(1)-F(5) bond length is 2.33 Å. The Ca(1)-F(6) bond length is 2.30 Å. The Ca(1)-F(7) bond length is 2.18 Å. Ag(1) 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 AgF6 octahedra that share corners with three equivalent Ca(1)F6 octahedra and  an edgeedge with one Ca(1)F6 octahedra. The corner-sharing octahedral tilt angles range from 60-68°. The Ag(1)-F(1) bond length is 2.12 Å. The Ag(1)-F(2) bond length is 2.11 Å. The Ag(1)-F(3) bond length is 2.15 Å. The Ag(1)-F(4) bond length is 2.12 Å. The Ag(1)-F(5) bond length is 2.13 Å. The Ag(1)-F(6) bond length is 2.14 Å. There are seven inequivalent F sites. In the first F site, F(1) is bonded in a 3-coordinate geometry to one Ba(1), one Ca(1), and one Ag(1) atom. In the second F site, F(2) is bonded in a bent 120 degrees geometry to one Ba(1), one Ca(1), and one Ag(1) atom. In the third F site, F(3) is bonded in a 4-coordinate geometry to two equivalent Ba(1), one Ca(1), and one Ag(1) atom. In the fourth F site, F(4) is bonded in a distorted trigonal planar geometry to two equivalent Ba(1) and one Ag(1) atom. In the fifth F site, F(5) is bonded in a distorted trigonal non-coplanar geometry to one Ba(1), one Ca(1), and one Ag(1) atom. In the sixth F site, F(6) is bonded in a distorted water-like geometry to two equivalent Ba(1), one Ca(1), and one Ag(1) atom. In the seventh F site, F(7) is bonded in a trigonal planar geometry to two equivalent Ba(1) and one Ca(1) atom.