MgPr(AgO3)2 is Ilmenite-derived structured and crystallizes in the orthorhombic Pmn2_1 space group. Mg(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted MgO6 pentagonal pyramids that share corners with four equivalent Ag(1)O6 octahedra and edges with four equivalent Ag(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-70°. Pr(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(2), and four equivalent O(3) atoms. Ag(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form AgO6 octahedra that share corners with six equivalent Ag(1)O6 octahedra, corners with two equivalent Mg(1)O6 pentagonal pyramids, and edges with two equivalent Mg(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 39-52°. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Pr(1), and two equivalent Ag(1) atoms to form a mixture of distorted edge and corner-sharing OPrMgAg2 trigonal pyramids. In the second O site, O(2) is bonded to one Mg(1), one Pr(1), and two equivalent Ag(1) atoms to form a mixture of distorted edge and corner-sharing OPrMgAg2 tetrahedra. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Mg(1), two equivalent Pr(1), and two equivalent Ag(1) atoms. In the fourth O site, O(4) is bonded to one Mg(1), one Pr(1), and two equivalent Ag(1) atoms to form distorted corner-sharing OPrMgAg2 trigonal pyramids.
MgPr(AgO3)2 is Ilmenite-derived structured and crystallizes in the orthorhombic Pmn2_1 space group. Mg(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted MgO6 pentagonal pyramids that share corners with four equivalent Ag(1)O6 octahedra and edges with four equivalent Ag(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-70°. The Mg(1)-O(1) bond length is 2.19 Å. The Mg(1)-O(4) bond length is 2.10 Å. Both Mg(1)-O(2) bond lengths are 2.24 Å. Both Mg(1)-O(3) bond lengths are 2.23 Å. Pr(1) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(2), and four equivalent O(3) atoms. The Pr(1)-O(1) bond length is 2.37 Å. The Pr(1)-O(4) bond length is 2.42 Å. Both Pr(1)-O(2) bond lengths are 2.43 Å. There are two shorter (2.56 Å) and two longer (2.92 Å) Pr(1)-O(3) bond lengths. Ag(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form AgO6 octahedra that share corners with six equivalent Ag(1)O6 octahedra, corners with two equivalent Mg(1)O6 pentagonal pyramids, and edges with two equivalent Mg(1)O6 pentagonal pyramids. The corner-sharing octahedral tilt angles range from 39-52°. The Ag(1)-O(1) bond length is 2.18 Å. The Ag(1)-O(4) bond length is 2.23 Å. There is one shorter (2.08 Å) and one longer (2.09 Å) Ag(1)-O(2) bond length. There is one shorter (2.12 Å) and one longer (2.18 Å) Ag(1)-O(3) bond length. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Pr(1), and two equivalent Ag(1) atoms to form a mixture of distorted edge and corner-sharing OPrMgAg2 trigonal pyramids. In the second O site, O(2) is bonded to one Mg(1), one Pr(1), and two equivalent Ag(1) atoms to form a mixture of distorted edge and corner-sharing OPrMgAg2 tetrahedra. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Mg(1), two equivalent Pr(1), and two equivalent Ag(1) atoms. In the fourth O site, O(4) is bonded to one Mg(1), one Pr(1), and two equivalent Ag(1) atoms to form distorted corner-sharing OPrMgAg2 trigonal pyramids.