Y2Ba3Cu2PtO10 crystallizes in the monoclinic C2/m space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 9-coordinate geometry to two equivalent O(2), three equivalent O(1), and four equivalent O(3) atoms. In the second Ba site, Ba(2) is bonded in a body-centered cubic geometry to four equivalent O(2) and four equivalent O(3) atoms. Y(1) is bonded in a 7-coordinate geometry to one O(1), two equivalent O(3), and four equivalent O(2) atoms. Pt(1) is bonded in an octahedral geometry to two equivalent O(1) and four equivalent O(3) atoms. Cu(1) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(2), and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Ba(1), one Y(1), one Pt(1), and one Cu(1) atom to form a mixture of distorted edge, face, and corner-sharing OBa3YCuPt octahedra. The corner-sharing octahedral tilt angles range from 0-69°. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(2), two equivalent Y(1), and one Cu(1) atom. In the third O site, O(3) is bonded to one Ba(2), two equivalent Ba(1), one Y(1), one Pt(1), and one Cu(1) atom to form a mixture of distorted edge, face, and corner-sharing OBa3YCuPt octahedra. The corner-sharing octahedral tilt angles range from 0-74°.
Y2Ba3Cu2PtO10 crystallizes in the monoclinic C2/m space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 9-coordinate geometry to two equivalent O(2), three equivalent O(1), and four equivalent O(3) atoms. Both Ba(1)-O(2) bond lengths are 3.11 Å. There is one shorter (2.54 Å) and two longer (2.94 Å) Ba(1)-O(1) bond lengths. There are two shorter (2.94 Å) and two longer (2.97 Å) Ba(1)-O(3) bond lengths. In the second Ba site, Ba(2) is bonded in a body-centered cubic geometry to four equivalent O(2) and four equivalent O(3) atoms. All Ba(2)-O(2) bond lengths are 2.75 Å. All Ba(2)-O(3) bond lengths are 2.74 Å. Y(1) is bonded in a 7-coordinate geometry to one O(1), two equivalent O(3), and four equivalent O(2) atoms. The Y(1)-O(1) bond length is 2.36 Å. Both Y(1)-O(3) bond lengths are 2.53 Å. There are two shorter (2.27 Å) and two longer (2.34 Å) Y(1)-O(2) bond lengths. Pt(1) is bonded in an octahedral geometry to two equivalent O(1) and four equivalent O(3) atoms. Both Pt(1)-O(1) bond lengths are 2.04 Å. All Pt(1)-O(3) bond lengths are 2.06 Å. Cu(1) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(2), and two equivalent O(3) atoms. The Cu(1)-O(1) bond length is 2.57 Å. Both Cu(1)-O(2) bond lengths are 1.97 Å. Both Cu(1)-O(3) bond lengths are 2.08 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Ba(1), one Y(1), one Pt(1), and one Cu(1) atom to form a mixture of distorted edge, face, and corner-sharing OBa3YCuPt octahedra. The corner-sharing octahedral tilt angles range from 0-69°. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Ba(1), one Ba(2), two equivalent Y(1), and one Cu(1) atom. In the third O site, O(3) is bonded to one Ba(2), two equivalent Ba(1), one Y(1), one Pt(1), and one Cu(1) atom to form a mixture of distorted edge, face, and corner-sharing OBa3YCuPt octahedra. The corner-sharing octahedral tilt angles range from 0-74°.