Co2PbP2H4O10 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(8) atoms to form CoO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and edges with two equivalent Co(1)O6 octahedra. In the second Co site, Co(2) is bonded to two equivalent O(1), two equivalent O(6), and two equivalent O(7) atoms to form CoO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and edges with two equivalent Co(2)O6 octahedra. Pb(1) is bonded in a 3-coordinate geometry to one O(4) and two equivalent O(6) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form PO4 tetrahedra that share corners with two equivalent Co(1)O6 octahedra and corners with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-55°. In the second P site, P(2) is bonded to one O(4), one O(5), and two equivalent O(6) atoms to form PO4 tetrahedra that share corners with two equivalent Co(1)O6 octahedra and corners with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(7) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(4) and one O(8) atom. In the fourth H site, H(4) is bonded in a linear geometry to one O(7) and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(7) is bonded to two equivalent Co(2), one H(2), and one H(4) atom to form distorted corner-sharing OCo2H2 tetrahedra. In the second O site, O(8) is bonded to two equivalent Co(1), one H(3), and one H(4) atom to form distorted corner-sharing OCo2H2 tetrahedra. In the third O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Co(2) and one P(1) atom. In the fourth O site, O(2) is bonded in a distorted water-like geometry to one P(1) and one H(1) atom. In the fifth O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one P(1) atom. In the sixth O site, O(4) is bonded in a distorted single-bond geometry to one Pb(1), one P(2), and one H(3) atom. In the seventh O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Co(1) and one P(2) atom. In the eighth O site, O(6) is bonded in a 3-coordinate geometry to one Co(2), one Pb(1), and one P(2) atom.
Co2PbP2H4O10 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(8) atoms to form CoO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and edges with two equivalent Co(1)O6 octahedra. Both Co(1)-O(3) bond lengths are 2.06 Å. Both Co(1)-O(5) bond lengths are 2.22 Å. Both Co(1)-O(8) bond lengths are 2.08 Å. In the second Co site, Co(2) is bonded to two equivalent O(1), two equivalent O(6), and two equivalent O(7) atoms to form CoO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and edges with two equivalent Co(2)O6 octahedra. Both Co(2)-O(1) bond lengths are 2.26 Å. Both Co(2)-O(6) bond lengths are 2.17 Å. Both Co(2)-O(7) bond lengths are 2.02 Å. Pb(1) is bonded in a 3-coordinate geometry to one O(4) and two equivalent O(6) atoms. The Pb(1)-O(4) bond length is 2.40 Å. Both Pb(1)-O(6) bond lengths are 2.57 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form PO4 tetrahedra that share corners with two equivalent Co(1)O6 octahedra and corners with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-55°. The P(1)-O(1) bond length is 1.55 Å. The P(1)-O(2) bond length is 1.62 Å. Both P(1)-O(3) bond lengths are 1.54 Å. In the second P site, P(2) is bonded to one O(4), one O(5), and two equivalent O(6) atoms to form PO4 tetrahedra that share corners with two equivalent Co(1)O6 octahedra and corners with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 47-54°. The P(2)-O(4) bond length is 1.55 Å. The P(2)-O(5) bond length is 1.57 Å. Both P(2)-O(6) bond lengths are 1.57 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(2) atom. The H(1)-O(2) bond length is 0.99 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(7) atom. The H(2)-O(7) bond length is 0.97 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(4) and one O(8) atom. The H(3)-O(4) bond length is 1.70 Å. The H(3)-O(8) bond length is 1.00 Å. In the fourth H site, H(4) is bonded in a linear geometry to one O(7) and one O(8) atom. The H(4)-O(7) bond length is 1.45 Å. The H(4)-O(8) bond length is 1.06 Å. There are eight inequivalent O sites. In the first O site, O(7) is bonded to two equivalent Co(2), one H(2), and one H(4) atom to form distorted corner-sharing OCo2H2 tetrahedra. In the second O site, O(8) is bonded to two equivalent Co(1), one H(3), and one H(4) atom to form distorted corner-sharing OCo2H2 tetrahedra. In the third O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Co(2) and one P(1) atom. In the fourth O site, O(2) is bonded in a distorted water-like geometry to one P(1) and one H(1) atom. In the fifth O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one P(1) atom. In the sixth O site, O(4) is bonded in a distorted single-bond geometry to one Pb(1), one P(2), and one H(3) atom. In the seventh O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Co(1) and one P(2) atom. In the eighth O site, O(6) is bonded in a 3-coordinate geometry to one Co(2), one Pb(1), and one P(2) atom.