MgYb4Ti4Cd4(SbO7)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 5-coordinate geometry to one O(1), one O(10), one O(16), one O(24), and one O(9) atom. There are four inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(22), one O(24), one O(28), one O(5), one O(7), and one O(9) atom. In the second Yb site, Yb(2) is bonded to one O(14), one O(15), one O(21), one O(28), one O(3), one O(4), one O(7), and one O(8) atom to form distorted YbO8 hexagonal bipyramids that share  an edgeedge with one Yb(3)O8 hexagonal bipyramid,  an edgeedge with one Ti(2)O6 octahedra,  an edgeedge with one Ti(3)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra,  an edgeedge with one Sb(3)O6 octahedra, and edges with two equivalent Ti(4)O6 octahedra. In the third Yb site, Yb(3) is bonded to one O(13), one O(20), one O(23), one O(25), one O(26), one O(4), one O(6), and one O(8) atom to form distorted YbO8 hexagonal bipyramids that share  an edgeedge with one Yb(2)O8 hexagonal bipyramid,  an edgeedge with one Yb(4)O8 hexagonal bipyramid,  an edgeedge with one Ti(1)O6 octahedra,  an edgeedge with one Ti(4)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra,  an edgeedge with one Sb(4)O6 octahedra, and edges with two equivalent Ti(2)O6 octahedra. In the fourth Yb site, Yb(4) is bonded to one O(1), one O(10), one O(11), one O(18), one O(2), one O(22), one O(26), and one O(6) atom to form distorted YbO8 hexagonal bipyramids that share  an edgeedge with one Yb(3)O8 hexagonal bipyramid,  an edgeedge with one Ti(2)O6 octahedra,  an edgeedge with one Ti(3)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra,  an edgeedge with one Sb(3)O6 octahedra, and edges with two equivalent Ti(1)O6 octahedra. There are four inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(18), one O(2), one O(20), one O(22), one O(5), and one O(6) atom to form TiO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Sb(2)O6 octahedra,  a cornercorner with one Sb(3)O6 octahedra, corners with two equivalent Sb(4)O6 octahedra,  an edgeedge with one Yb(3)O8 hexagonal bipyramid, and edges with two equivalent Yb(4)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 41-48°. In the second Ti site, Ti(2) is bonded to one O(11), one O(23), one O(25), one O(3), one O(6), and one O(8) atom to form TiO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra,  a cornercorner with one Sb(4)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Yb(2)O8 hexagonal bipyramid,  an edgeedge with one Yb(4)O8 hexagonal bipyramid, and edges with two equivalent Yb(3)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 41-49°. In the third Ti site, Ti(3) is bonded to one O(10), one O(21), one O(22), one O(24), one O(7), and one O(9) atom to form TiO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra,  a cornercorner with one Sb(4)O6 octahedra, corners with two equivalent Sb(3)O6 octahedra,  an edgeedge with one Yb(2)O8 hexagonal bipyramid, and  an edgeedge with one Yb(4)O8 hexagonal bipyramid. The corner-sharing octahedral tilt angles range from 40-52°. In the fourth Ti site, Ti(4) is bonded to one O(12), one O(13), one O(14), one O(15), one O(7), and one O(8) atom to form TiO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Sb(2)O6 octahedra,  a cornercorner with one Sb(3)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra,  an edgeedge with one Yb(3)O8 hexagonal bipyramid, and edges with two equivalent Yb(2)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 40-46°. There are four inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 8-coordinate geometry to one O(13), one O(15), one O(17), one O(2), one O(20), one O(26), one O(27), and one O(4) atom. In the second Cd site, Cd(2) is bonded in a 7-coordinate geometry to one O(1), one O(14), one O(16), one O(18), one O(19), one O(28), and one O(5) atom. In the third Cd site, Cd(3) is bonded in a 7-coordinate geometry to one O(21), one O(25), one O(27), one O(28), one O(3), one O(4), and one O(9) atom. In the fourth Cd site, Cd(4) is bonded in a 5-coordinate geometry to one O(1), one O(11), one O(17), one O(23), and one O(26) atom. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(12), one O(13), one O(16), one O(25), one O(27), and one O(9) atom to form SbO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Sb(2)O6 octahedra,  a cornercorner with one Sb(3)O6 octahedra, corners with two equivalent Ti(4)O6 octahedra, and  an edgeedge with one Yb(3)O8 hexagonal bipyramid. The corner-sharing octahedral tilt angles range from 42-49°. In the second Sb site, Sb(2) is bonded to one O(11), one O(15), one O(17), one O(2), one O(27), and one O(3) atom to form SbO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra,  a cornercorner with one Sb(4)O6 octahedra, corners with two equivalent Ti(2)O6 octahedra,  an edgeedge with one Yb(2)O8 hexagonal bipyramid, and  an edgeedge with one Yb(4)O8 hexagonal bipyramid. The corner-sharing octahedral tilt angles range from 43-49°. In the third Sb site, Sb(3) is bonded to one O(10), one O(14), one O(16), one O(18), one O(19), and one O(21) atom to form SbO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra,  a cornercorner with one Sb(4)O6 octahedra, corners with two equivalent Ti(3)O6 octahedra,  an edgeedge with one Yb(2)O8 hexagonal bipyramid, and  an edgeedge with one Yb(4)O8 hexagonal bipyramid. The corner-sharing octahedral tilt angles range from 43-50°. In the fourth Sb site, Sb(4) is bonded to one O(17), one O(19), one O(20), one O(23), one O(24), and one O(5) atom to form SbO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Sb(2)O6 octahedra,  a cornercorner with one Sb(3)O6 octahedra, corners with two equivalent Ti(1)O6 octahedra, and  an edgeedge with one Yb(3)O8 hexagonal bipyramid. The corner-sharing octahedral tilt angles range from 42-52°. There are twenty-eight inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Yb(1), one Yb(4), one Cd(2), and one Cd(4) atom to form distorted OYb2MgCd2 trigonal bipyramids that share corners with two equivalent O(26)Yb2Cd2 tetrahedra, corners with two equivalent O(28)Yb2Cd2 tetrahedra, corners with two equivalent O(5)YbTiCdSb tetrahedra,  a cornercorner with one O(23)YbTiCdSb trigonal pyramid,  an edgeedge with one O(11)YbTiCdSb tetrahedra, and  an edgeedge with one O(18)YbTiCdSb tetrahedra. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Yb(4), one Ti(1), one Cd(1), and one Sb(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Yb(2), one Ti(2), one Cd(3), and one Sb(2) atom. In the fourth O site, O(4) is bonded to one Yb(2), one Yb(3), one Cd(1), and one Cd(3) atom to form OYb2Cd2 tetrahedra that share corners with two equivalent O(26)Yb2Cd2 tetrahedra, corners with two equivalent O(28)Yb2Cd2 tetrahedra,  a cornercorner with one O(23)YbTiCdSb trigonal pyramid, and  an edgeedge with one O(25)YbTiCdSb trigonal pyramid. In the fifth O site, O(5) is bonded to one Yb(1), one Ti(1), one Cd(2), and one Sb(4) atom to form distorted OYbTiCdSb tetrahedra that share corners with two equivalent O(1)Yb2MgCd2 trigonal bipyramids,  a cornercorner with one O(23)YbTiCdSb trigonal pyramid,  an edgeedge with one O(28)Yb2Cd2 tetrahedra, and  an edgeedge with one O(18)YbTiCdSb tetrahedra. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Yb(3), one Yb(4), one Ti(1), and one Ti(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Yb(1), one Yb(2), one Ti(3), and one Ti(4) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Yb(2), one Yb(3), one Ti(2), and one Ti(4) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Mg(1), one Yb(1), one Ti(3), one Cd(3), and one Sb(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Mg(1), one Yb(4), one Ti(3), and one Sb(3) atom. In the eleventh O site, O(11) is bonded to one Yb(4), one Ti(2), one Cd(4), and one Sb(2) atom to form distorted OYbTiCdSb tetrahedra that share  a cornercorner with one O(18)YbTiCdSb tetrahedra, corners with two equivalent O(26)Yb2Cd2 tetrahedra,  a cornercorner with one O(25)YbTiCdSb trigonal pyramid,  an edgeedge with one O(1)Yb2MgCd2 trigonal bipyramid, and  an edgeedge with one O(23)YbTiCdSb trigonal pyramid. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Yb(1), one Ti(4), and one Sb(1) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Yb(3), one Ti(4), one Cd(1), and one Sb(1) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one Yb(2), one Ti(4), one Cd(2), and one Sb(3) atom. In the fifteenth O site, O(15) is bonded in a 4-coordinate geometry to one Yb(2), one Ti(4), one Cd(1), and one Sb(2) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Mg(1), one Cd(2), one Sb(1), and one Sb(3) atom. In the seventeenth O site, O(17) is bonded in a 4-coordinate geometry to one Cd(1), one Cd(4), one Sb(2), and one Sb(4) atom. In the eighteenth O site, O(18) is bonded to one Yb(4), one Ti(1), one Cd(2), and one Sb(3) atom to form distorted OYbTiCdSb tetrahedra that share  a cornercorner with one O(26)Yb2Cd2 tetrahedra,  a cornercorner with one O(28)Yb2Cd2 tetrahedra,  a cornercorner with one O(11)YbTiCdSb tetrahedra,  an edgeedge with one O(5)YbTiCdSb tetrahedra, and  an edgeedge with one O(1)Yb2MgCd2 trigonal bipyramid. In the nineteenth O site, O(19) is bonded in a 2-coordinate geometry to one Cd(2), one Sb(3), and one Sb(4) atom. In the twentieth O site, O(20) is bonded in a 4-coordinate geometry to one Yb(3), one Ti(1), one Cd(1), and one Sb(4) atom. In the twenty-first O site, O(21) is bonded in a 4-coordinate geometry to one Yb(2), one Ti(3), one Cd(3), and one Sb(3) atom. In the twenty-second O site, O(22) is bonded in a 4-coordinate geometry to one Yb(1), one Yb(4), one Ti(1), and one Ti(3) atom. In the twenty-third O site, O(23) is bonded to one Yb(3), one Ti(2), one Cd(4), and one Sb(4) atom to form distorted OYbTiCdSb trigonal pyramids that share  a cornercorner with one O(4)Yb2Cd2 tetrahedra,  a cornercorner with one O(5)YbTiCdSb tetrahedra,  a cornercorner with one O(1)Yb2MgCd2 trigonal bipyramid,  an edgeedge with one O(26)Yb2Cd2 tetrahedra,  an edgeedge with one O(11)YbTiCdSb tetrahedra, and  an edgeedge with one O(25)YbTiCdSb trigonal pyramid. In the twenty-fourth O site, O(24) is bonded in a 3-coordinate geometry to one Mg(1), one Yb(1), one Ti(3), and one Sb(4) atom. In the twenty-fifth O site, O(25) is bonded to one Yb(3), one Ti(2), one Cd(3), and one Sb(1) atom to form distorted OYbTiCdSb trigonal pyramids that share  a cornercorner with one O(26)Yb2Cd2 tetrahedra,  a cornercorner with one O(28)Yb2Cd2 tetrahedra,  a cornercorner with one O(11)YbTiCdSb tetrahedra,  an edgeedge with one O(4)Yb2Cd2 tetrahedra, and  an edgeedge with one O(23)YbTiCdSb trigonal pyramid. In the twenty-sixth O site, O(26) is bonded to one Yb(3), one Yb(4), one Cd(1), and one Cd(4) atom to form OYb2Cd2 tetrahedra that share  a cornercorner with one O(18)YbTiCdSb tetrahedra, corners with two equivalent O(4)Yb2Cd2 tetrahedra, corners with two equivalent O(11)YbTiCdSb tetrahedra, corners with two equivalent O(1)Yb2MgCd2 trigonal bipyramids,  a cornercorner with one O(25)YbTiCdSb trigonal pyramid, and  an edgeedge with one O(23)YbTiCdSb trigonal pyramid. In the twenty-seventh O site, O(27) is bonded in a 4-coordinate geometry to one Cd(1), one Cd(3), one Sb(1), and one Sb(2) atom. In the twenty-eighth O site, O(28) is bonded to one Yb(1), one Yb(2), one Cd(2), and one Cd(3) atom to form OYb2Cd2 tetrahedra that share  a cornercorner with one O(18)YbTiCdSb tetrahedra, corners with two equivalent O(4)Yb2Cd2 tetrahedra, corners with two equivalent O(1)Yb2MgCd2 trigonal bipyramids,  a cornercorner with one O(25)YbTiCdSb trigonal pyramid, and  an edgeedge with one O(5)YbTiCdSb tetrahedra.
MgYb4Ti4Cd4(SbO7)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 5-coordinate geometry to one O(1), one O(10), one O(16), one O(24), and one O(9) atom. The Mg(1)-O(1) bond length is 1.94 Å. The Mg(1)-O(10) bond length is 1.99 Å. The Mg(1)-O(16) bond length is 2.11 Å. The Mg(1)-O(24) bond length is 2.16 Å. The Mg(1)-O(9) bond length is 2.03 Å. There are four inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(22), one O(24), one O(28), one O(5), one O(7), and one O(9) atom. The Yb(1)-O(1) bond length is 2.40 Å. The Yb(1)-O(12) bond length is 2.66 Å. The Yb(1)-O(22) bond length is 2.32 Å. The Yb(1)-O(24) bond length is 2.79 Å. The Yb(1)-O(28) bond length is 2.25 Å. The Yb(1)-O(5) bond length is 2.43 Å. The Yb(1)-O(7) bond length is 2.37 Å. The Yb(1)-O(9) bond length is 2.86 Å. In the second Yb site, Yb(2) is bonded to one O(14), one O(15), one O(21), one O(28), one O(3), one O(4), one O(7), and one O(8) atom to form distorted YbO8 hexagonal bipyramids that share  an edgeedge with one Yb(3)O8 hexagonal bipyramid,  an edgeedge with one Ti(2)O6 octahedra,  an edgeedge with one Ti(3)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra,  an edgeedge with one Sb(3)O6 octahedra, and edges with two equivalent Ti(4)O6 octahedra. The Yb(2)-O(14) bond length is 2.51 Å. The Yb(2)-O(15) bond length is 2.45 Å. The Yb(2)-O(21) bond length is 2.55 Å. The Yb(2)-O(28) bond length is 2.25 Å. The Yb(2)-O(3) bond length is 2.49 Å. The Yb(2)-O(4) bond length is 2.26 Å. The Yb(2)-O(7) bond length is 2.68 Å. The Yb(2)-O(8) bond length is 2.67 Å. In the third Yb site, Yb(3) is bonded to one O(13), one O(20), one O(23), one O(25), one O(26), one O(4), one O(6), and one O(8) atom to form distorted YbO8 hexagonal bipyramids that share  an edgeedge with one Yb(2)O8 hexagonal bipyramid,  an edgeedge with one Yb(4)O8 hexagonal bipyramid,  an edgeedge with one Ti(1)O6 octahedra,  an edgeedge with one Ti(4)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra,  an edgeedge with one Sb(4)O6 octahedra, and edges with two equivalent Ti(2)O6 octahedra. The Yb(3)-O(13) bond length is 2.56 Å. The Yb(3)-O(20) bond length is 2.58 Å. The Yb(3)-O(23) bond length is 2.57 Å. The Yb(3)-O(25) bond length is 2.54 Å. The Yb(3)-O(26) bond length is 2.26 Å. The Yb(3)-O(4) bond length is 2.27 Å. The Yb(3)-O(6) bond length is 2.67 Å. The Yb(3)-O(8) bond length is 2.57 Å. In the fourth Yb site, Yb(4) is bonded to one O(1), one O(10), one O(11), one O(18), one O(2), one O(22), one O(26), and one O(6) atom to form distorted YbO8 hexagonal bipyramids that share  an edgeedge with one Yb(3)O8 hexagonal bipyramid,  an edgeedge with one Ti(2)O6 octahedra,  an edgeedge with one Ti(3)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra,  an edgeedge with one Sb(3)O6 octahedra, and edges with two equivalent Ti(1)O6 octahedra. The Yb(4)-O(1) bond length is 2.41 Å. The Yb(4)-O(10) bond length is 2.55 Å. The Yb(4)-O(11) bond length is 2.55 Å. The Yb(4)-O(18) bond length is 2.47 Å. The Yb(4)-O(2) bond length is 2.52 Å. The Yb(4)-O(22) bond length is 2.75 Å. The Yb(4)-O(26) bond length is 2.30 Å. The Yb(4)-O(6) bond length is 2.64 Å. There are four inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(18), one O(2), one O(20), one O(22), one O(5), and one O(6) atom to form TiO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Sb(2)O6 octahedra,  a cornercorner with one Sb(3)O6 octahedra, corners with two equivalent Sb(4)O6 octahedra,  an edgeedge with one Yb(3)O8 hexagonal bipyramid, and edges with two equivalent Yb(4)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 41-48°. The Ti(1)-O(18) bond length is 2.06 Å. The Ti(1)-O(2) bond length is 1.94 Å. The Ti(1)-O(20) bond length is 1.92 Å. The Ti(1)-O(22) bond length is 1.97 Å. The Ti(1)-O(5) bond length is 2.09 Å. The Ti(1)-O(6) bond length is 1.88 Å. In the second Ti site, Ti(2) is bonded to one O(11), one O(23), one O(25), one O(3), one O(6), and one O(8) atom to form TiO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra,  a cornercorner with one Sb(4)O6 octahedra, corners with two equivalent Sb(2)O6 octahedra,  an edgeedge with one Yb(2)O8 hexagonal bipyramid,  an edgeedge with one Yb(4)O8 hexagonal bipyramid, and edges with two equivalent Yb(3)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 41-49°. The Ti(2)-O(11) bond length is 2.02 Å. The Ti(2)-O(23) bond length is 2.15 Å. The Ti(2)-O(25) bond length is 2.04 Å. The Ti(2)-O(3) bond length is 1.93 Å. The Ti(2)-O(6) bond length is 1.91 Å. The Ti(2)-O(8) bond length is 1.85 Å. In the third Ti site, Ti(3) is bonded to one O(10), one O(21), one O(22), one O(24), one O(7), and one O(9) atom to form TiO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra,  a cornercorner with one Sb(4)O6 octahedra, corners with two equivalent Sb(3)O6 octahedra,  an edgeedge with one Yb(2)O8 hexagonal bipyramid, and  an edgeedge with one Yb(4)O8 hexagonal bipyramid. The corner-sharing octahedral tilt angles range from 40-52°. The Ti(3)-O(10) bond length is 2.11 Å. The Ti(3)-O(21) bond length is 1.91 Å. The Ti(3)-O(22) bond length is 1.84 Å. The Ti(3)-O(24) bond length is 2.12 Å. The Ti(3)-O(7) bond length is 1.85 Å. The Ti(3)-O(9) bond length is 2.11 Å. In the fourth Ti site, Ti(4) is bonded to one O(12), one O(13), one O(14), one O(15), one O(7), and one O(8) atom to form TiO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Sb(2)O6 octahedra,  a cornercorner with one Sb(3)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra,  an edgeedge with one Yb(3)O8 hexagonal bipyramid, and edges with two equivalent Yb(2)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles range from 40-46°. The Ti(4)-O(12) bond length is 1.94 Å. The Ti(4)-O(13) bond length is 2.01 Å. The Ti(4)-O(14) bond length is 1.99 Å. The Ti(4)-O(15) bond length is 1.98 Å. The Ti(4)-O(7) bond length is 1.96 Å. The Ti(4)-O(8) bond length is 1.96 Å. There are four inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a 8-coordinate geometry to one O(13), one O(15), one O(17), one O(2), one O(20), one O(26), one O(27), and one O(4) atom. The Cd(1)-O(13) bond length is 2.56 Å. The Cd(1)-O(15) bond length is 2.56 Å. The Cd(1)-O(17) bond length is 2.65 Å. The Cd(1)-O(2) bond length is 2.67 Å. The Cd(1)-O(20) bond length is 2.76 Å. The Cd(1)-O(26) bond length is 2.20 Å. The Cd(1)-O(27) bond length is 2.60 Å. The Cd(1)-O(4) bond length is 2.21 Å. In the second Cd site, Cd(2) is bonded in a 7-coordinate geometry to one O(1), one O(14), one O(16), one O(18), one O(19), one O(28), and one O(5) atom. The Cd(2)-O(1) bond length is 2.28 Å. The Cd(2)-O(14) bond length is 2.57 Å. The Cd(2)-O(16) bond length is 2.73 Å. The Cd(2)-O(18) bond length is 2.40 Å. The Cd(2)-O(19) bond length is 2.72 Å. The Cd(2)-O(28) bond length is 2.20 Å. The Cd(2)-O(5) bond length is 2.47 Å. In the third Cd site, Cd(3) is bonded in a 7-coordinate geometry to one O(21), one O(25), one O(27), one O(28), one O(3), one O(4), and one O(9) atom. The Cd(3)-O(21) bond length is 2.61 Å. The Cd(3)-O(25) bond length is 2.55 Å. The Cd(3)-O(27) bond length is 2.56 Å. The Cd(3)-O(28) bond length is 2.20 Å. The Cd(3)-O(3) bond length is 2.64 Å. The Cd(3)-O(4) bond length is 2.24 Å. The Cd(3)-O(9) bond length is 2.65 Å. In the fourth Cd site, Cd(4) is bonded in a 5-coordinate geometry to one O(1), one O(11), one O(17), one O(23), and one O(26) atom. The Cd(4)-O(1) bond length is 2.36 Å. The Cd(4)-O(11) bond length is 2.28 Å. The Cd(4)-O(17) bond length is 2.41 Å. The Cd(4)-O(23) bond length is 2.37 Å. The Cd(4)-O(26) bond length is 2.19 Å. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(12), one O(13), one O(16), one O(25), one O(27), and one O(9) atom to form SbO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Sb(2)O6 octahedra,  a cornercorner with one Sb(3)O6 octahedra, corners with two equivalent Ti(4)O6 octahedra, and  an edgeedge with one Yb(3)O8 hexagonal bipyramid. The corner-sharing octahedral tilt angles range from 42-49°. The Sb(1)-O(12) bond length is 2.00 Å. The Sb(1)-O(13) bond length is 1.98 Å. The Sb(1)-O(16) bond length is 2.07 Å. The Sb(1)-O(25) bond length is 1.98 Å. The Sb(1)-O(27) bond length is 2.01 Å. The Sb(1)-O(9) bond length is 2.01 Å. In the second Sb site, Sb(2) is bonded to one O(11), one O(15), one O(17), one O(2), one O(27), and one O(3) atom to form SbO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra,  a cornercorner with one Sb(4)O6 octahedra, corners with two equivalent Ti(2)O6 octahedra,  an edgeedge with one Yb(2)O8 hexagonal bipyramid, and  an edgeedge with one Yb(4)O8 hexagonal bipyramid. The corner-sharing octahedral tilt angles range from 43-49°. The Sb(2)-O(11) bond length is 1.99 Å. The Sb(2)-O(15) bond length is 1.98 Å. The Sb(2)-O(17) bond length is 2.04 Å. The Sb(2)-O(2) bond length is 1.98 Å. The Sb(2)-O(27) bond length is 2.03 Å. The Sb(2)-O(3) bond length is 1.97 Å. In the third Sb site, Sb(3) is bonded to one O(10), one O(14), one O(16), one O(18), one O(19), and one O(21) atom to form SbO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Ti(4)O6 octahedra,  a cornercorner with one Sb(1)O6 octahedra,  a cornercorner with one Sb(4)O6 octahedra, corners with two equivalent Ti(3)O6 octahedra,  an edgeedge with one Yb(2)O8 hexagonal bipyramid, and  an edgeedge with one Yb(4)O8 hexagonal bipyramid. The corner-sharing octahedral tilt angles range from 43-50°. The Sb(3)-O(10) bond length is 2.01 Å. The Sb(3)-O(14) bond length is 1.98 Å. The Sb(3)-O(16) bond length is 2.07 Å. The Sb(3)-O(18) bond length is 1.96 Å. The Sb(3)-O(19) bond length is 2.04 Å. The Sb(3)-O(21) bond length is 1.97 Å. In the fourth Sb site, Sb(4) is bonded to one O(17), one O(19), one O(20), one O(23), one O(24), and one O(5) atom to form SbO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Ti(3)O6 octahedra,  a cornercorner with one Sb(2)O6 octahedra,  a cornercorner with one Sb(3)O6 octahedra, corners with two equivalent Ti(1)O6 octahedra, and  an edgeedge with one Yb(3)O8 hexagonal bipyramid. The corner-sharing octahedral tilt angles range from 42-52°. The Sb(4)-O(17) bond length is 2.06 Å. The Sb(4)-O(19) bond length is 2.03 Å. The Sb(4)-O(20) bond length is 2.00 Å. The Sb(4)-O(23) bond length is 2.00 Å. The Sb(4)-O(24) bond length is 2.01 Å. The Sb(4)-O(5) bond length is 1.99 Å. There are twenty-eight inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Yb(1), one Yb(4), one Cd(2), and one Cd(4) atom to form distorted OYb2MgCd2 trigonal bipyramids that share corners with two equivalent O(26)Yb2Cd2 tetrahedra, corners with two equivalent O(28)Yb2Cd2 tetrahedra, corners with two equivalent O(5)YbTiCdSb tetrahedra,  a cornercorner with one O(23)YbTiCdSb trigonal pyramid,  an edgeedge with one O(11)YbTiCdSb tetrahedra, and  an edgeedge with one O(18)YbTiCdSb tetrahedra. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Yb(4), one Ti(1), one Cd(1), and one Sb(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Yb(2), one Ti(2), one Cd(3), and one Sb(2) atom. In the fourth O site, O(4) is bonded to one Yb(2), one Yb(3), one Cd(1), and one Cd(3) atom to form OYb2Cd2 tetrahedra that share corners with two equivalent O(26)Yb2Cd2 tetrahedra, corners with two equivalent O(28)Yb2Cd2 tetrahedra,  a cornercorner with one O(23)YbTiCdSb trigonal pyramid, and  an edgeedge with one O(25)YbTiCdSb trigonal pyramid. In the fifth O site, O(5) is bonded to one Yb(1), one Ti(1), one Cd(2), and one Sb(4) atom to form distorted OYbTiCdSb tetrahedra that share corners with two equivalent O(1)Yb2MgCd2 trigonal bipyramids,  a cornercorner with one O(23)YbTiCdSb trigonal pyramid,  an edgeedge with one O(28)Yb2Cd2 tetrahedra, and  an edgeedge with one O(18)YbTiCdSb tetrahedra. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Yb(3), one Yb(4), one Ti(1), and one Ti(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Yb(1), one Yb(2), one Ti(3), and one Ti(4) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Yb(2), one Yb(3), one Ti(2), and one Ti(4) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Mg(1), one Yb(1), one Ti(3), one Cd(3), and one Sb(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Mg(1), one Yb(4), one Ti(3), and one Sb(3) atom. In the eleventh O site, O(11) is bonded to one Yb(4), one Ti(2), one Cd(4), and one Sb(2) atom to form distorted OYbTiCdSb tetrahedra that share  a cornercorner with one O(18)YbTiCdSb tetrahedra, corners with two equivalent O(26)Yb2Cd2 tetrahedra,  a cornercorner with one O(25)YbTiCdSb trigonal pyramid,  an edgeedge with one O(1)Yb2MgCd2 trigonal bipyramid, and  an edgeedge with one O(23)YbTiCdSb trigonal pyramid. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one Yb(1), one Ti(4), and one Sb(1) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Yb(3), one Ti(4), one Cd(1), and one Sb(1) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one Yb(2), one Ti(4), one Cd(2), and one Sb(3) atom. In the fifteenth O site, O(15) is bonded in a 4-coordinate geometry to one Yb(2), one Ti(4), one Cd(1), and one Sb(2) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Mg(1), one Cd(2), one Sb(1), and one Sb(3) atom. In the seventeenth O site, O(17) is bonded in a 4-coordinate geometry to one Cd(1), one Cd(4), one Sb(2), and one Sb(4) atom. In the eighteenth O site, O(18) is bonded to one Yb(4), one Ti(1), one Cd(2), and one Sb(3) atom to form distorted OYbTiCdSb tetrahedra that share  a cornercorner with one O(26)Yb2Cd2 tetrahedra,  a cornercorner with one O(28)Yb2Cd2 tetrahedra,  a cornercorner with one O(11)YbTiCdSb tetrahedra,  an edgeedge with one O(5)YbTiCdSb tetrahedra, and  an edgeedge with one O(1)Yb2MgCd2 trigonal bipyramid. In the nineteenth O site, O(19) is bonded in a 2-coordinate geometry to one Cd(2), one Sb(3), and one Sb(4) atom. In the twentieth O site, O(20) is bonded in a 4-coordinate geometry to one Yb(3), one Ti(1), one Cd(1), and one Sb(4) atom. In the twenty-first O site, O(21) is bonded in a 4-coordinate geometry to one Yb(2), one Ti(3), one Cd(3), and one Sb(3) atom. In the twenty-second O site, O(22) is bonded in a 4-coordinate geometry to one Yb(1), one Yb(4), one Ti(1), and one Ti(3) atom. In the twenty-third O site, O(23) is bonded to one Yb(3), one Ti(2), one Cd(4), and one Sb(4) atom to form distorted OYbTiCdSb trigonal pyramids that share  a cornercorner with one O(4)Yb2Cd2 tetrahedra,  a cornercorner with one O(5)YbTiCdSb tetrahedra,  a cornercorner with one O(1)Yb2MgCd2 trigonal bipyramid,  an edgeedge with one O(26)Yb2Cd2 tetrahedra,  an edgeedge with one O(11)YbTiCdSb tetrahedra, and  an edgeedge with one O(25)YbTiCdSb trigonal pyramid. In the twenty-fourth O site, O(24) is bonded in a 3-coordinate geometry to one Mg(1), one Yb(1), one Ti(3), and one Sb(4) atom. In the twenty-fifth O site, O(25) is bonded to one Yb(3), one Ti(2), one Cd(3), and one Sb(1) atom to form distorted OYbTiCdSb trigonal pyramids that share  a cornercorner with one O(26)Yb2Cd2 tetrahedra,  a cornercorner with one O(28)Yb2Cd2 tetrahedra,  a cornercorner with one O(11)YbTiCdSb tetrahedra,  an edgeedge with one O(4)Yb2Cd2 tetrahedra, and  an edgeedge with one O(23)YbTiCdSb trigonal pyramid. In the twenty-sixth O site, O(26) is bonded to one Yb(3), one Yb(4), one Cd(1), and one Cd(4) atom to form OYb2Cd2 tetrahedra that share  a cornercorner with one O(18)YbTiCdSb tetrahedra, corners with two equivalent O(4)Yb2Cd2 tetrahedra, corners with two equivalent O(11)YbTiCdSb tetrahedra, corners with two equivalent O(1)Yb2MgCd2 trigonal bipyramids,  a cornercorner with one O(25)YbTiCdSb trigonal pyramid, and  an edgeedge with one O(23)YbTiCdSb trigonal pyramid. In the twenty-seventh O site, O(27) is bonded in a 4-coordinate geometry to one Cd(1), one Cd(3), one Sb(1), and one Sb(2) atom. In the twenty-eighth O site, O(28) is bonded to one Yb(1), one Yb(2), one Cd(2), and one Cd(3) atom to form OYb2Cd2 tetrahedra that share  a cornercorner with one O(18)YbTiCdSb tetrahedra, corners with two equivalent O(4)Yb2Cd2 tetrahedra, corners with two equivalent O(1)Yb2MgCd2 trigonal bipyramids,  a cornercorner with one O(25)YbTiCdSb trigonal pyramid, and  an edgeedge with one O(5)YbTiCdSb tetrahedra.