PtCu4O5 crystallizes in the monoclinic P2/m space group. Pt(1) is bonded in a distorted square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. There are five inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. In the second Cu site, Cu(2) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(2) atoms. In the third Cu site, Cu(3) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. In the fourth Cu site, Cu(4) is bonded in a distorted square co-planar geometry to two equivalent O(1) and two equivalent O(2) atoms. In the fifth Cu site, Cu(5) is bonded in a square co-planar geometry to four equivalent O(1) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Cu(1), one Cu(2), one Cu(4), and one Cu(5) atom to form OCu4 tetrahedra that share corners with four equivalent O(2)Cu3Pt tetrahedra, corners with four equivalent O(1)Cu4 tetrahedra, and edges with two equivalent O(1)Cu4 tetrahedra. In the second O site, O(2) is bonded to one Pt(1), one Cu(2), one Cu(3), and one Cu(4) atom to form OCu3Pt tetrahedra that share corners with four equivalent O(3)Cu2Pt2 tetrahedra, corners with four equivalent O(1)Cu4 tetrahedra, and edges with two equivalent O(2)Cu3Pt tetrahedra. In the third O site, O(3) is bonded to two equivalent Pt(1) and two equivalent Cu(3) atoms to form OCu2Pt2 tetrahedra that share corners with eight equivalent O(2)Cu3Pt tetrahedra and edges with two equivalent O(3)Cu2Pt2 tetrahedra.
PtCu4O5 crystallizes in the monoclinic P2/m space group. Pt(1) is bonded in a distorted square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. Both Pt(1)-O(2) bond lengths are 2.03 Å. Both Pt(1)-O(3) bond lengths are 2.05 Å. There are five inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. All Cu(1)-O(1) bond lengths are 1.95 Å. In the second Cu site, Cu(2) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(2) atoms. Both Cu(2)-O(1) bond lengths are 1.95 Å. Both Cu(2)-O(2) bond lengths are 1.96 Å. In the third Cu site, Cu(3) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. Both Cu(3)-O(2) bond lengths are 1.96 Å. Both Cu(3)-O(3) bond lengths are 1.98 Å. In the fourth Cu site, Cu(4) is bonded in a distorted square co-planar geometry to two equivalent O(1) and two equivalent O(2) atoms. Both Cu(4)-O(1) bond lengths are 1.98 Å. Both Cu(4)-O(2) bond lengths are 2.00 Å. In the fifth Cu site, Cu(5) is bonded in a square co-planar geometry to four equivalent O(1) atoms. All Cu(5)-O(1) bond lengths are 1.98 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Cu(1), one Cu(2), one Cu(4), and one Cu(5) atom to form OCu4 tetrahedra that share corners with four equivalent O(2)Cu3Pt tetrahedra, corners with four equivalent O(1)Cu4 tetrahedra, and edges with two equivalent O(1)Cu4 tetrahedra. In the second O site, O(2) is bonded to one Pt(1), one Cu(2), one Cu(3), and one Cu(4) atom to form OCu3Pt tetrahedra that share corners with four equivalent O(3)Cu2Pt2 tetrahedra, corners with four equivalent O(1)Cu4 tetrahedra, and edges with two equivalent O(2)Cu3Pt tetrahedra. In the third O site, O(3) is bonded to two equivalent Pt(1) and two equivalent Cu(3) atoms to form OCu2Pt2 tetrahedra that share corners with eight equivalent O(2)Cu3Pt tetrahedra and edges with two equivalent O(3)Cu2Pt2 tetrahedra.