Pb3(PO4)2 crystallizes in the trigonal P3 space group. There are five inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(5), one O(6), one O(7), and one O(8) atom. In the second Pb site, Pb(2) is bonded in a 6-coordinate geometry to one O(2), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the third Pb site, Pb(3) is bonded in a 3-coordinate geometry to three equivalent O(3) atoms. In the fourth Pb site, Pb(4) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(4) atoms. In the fifth Pb site, Pb(5) is bonded in a 9-coordinate geometry to three equivalent O(1), three equivalent O(4), and three equivalent O(5) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(1), one O(3), one O(5), and one O(8) atom. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(2), one O(4), one O(6), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(7) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), and one P(2) atom. In the second O site, O(8) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), and one P(1) atom. In the third O site, O(1) is bonded in a 1-coordinate geometry to one Pb(1), one Pb(4), one Pb(5), and one P(1) atom. In the fourth O site, O(2) is bonded in a 2-coordinate geometry to one Pb(2) and one P(2) atom. In the fifth O site, O(3) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(3), and one P(1) atom. In the sixth O site, O(4) is bonded in a distorted single-bond geometry to one Pb(2), one Pb(4), one Pb(5), and one P(2) atom. In the seventh O site, O(5) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), one Pb(5), and one P(1) atom. In the eighth O site, O(6) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), and one P(2) atom.
Pb3(PO4)2 crystallizes in the trigonal P3 space group. There are five inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(5), one O(6), one O(7), and one O(8) atom. The Pb(1)-O(1) bond length is 2.25 Å. The Pb(1)-O(3) bond length is 2.54 Å. The Pb(1)-O(5) bond length is 2.76 Å. The Pb(1)-O(6) bond length is 2.45 Å. The Pb(1)-O(7) bond length is 2.53 Å. The Pb(1)-O(8) bond length is 2.69 Å. In the second Pb site, Pb(2) is bonded in a 6-coordinate geometry to one O(2), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. The Pb(2)-O(2) bond length is 2.23 Å. The Pb(2)-O(4) bond length is 2.84 Å. The Pb(2)-O(5) bond length is 2.62 Å. The Pb(2)-O(6) bond length is 2.54 Å. The Pb(2)-O(7) bond length is 2.68 Å. The Pb(2)-O(8) bond length is 2.48 Å. In the third Pb site, Pb(3) is bonded in a 3-coordinate geometry to three equivalent O(3) atoms. All Pb(3)-O(3) bond lengths are 2.47 Å. In the fourth Pb site, Pb(4) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(4) atoms. All Pb(4)-O(1) bond lengths are 2.77 Å. All Pb(4)-O(4) bond lengths are 2.48 Å. In the fifth Pb site, Pb(5) is bonded in a 9-coordinate geometry to three equivalent O(1), three equivalent O(4), and three equivalent O(5) atoms. All Pb(5)-O(1) bond lengths are 2.85 Å. All Pb(5)-O(4) bond lengths are 2.51 Å. All Pb(5)-O(5) bond lengths are 2.75 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded in a tetrahedral geometry to one O(1), one O(3), one O(5), and one O(8) atom. The P(1)-O(1) bond length is 1.56 Å. The P(1)-O(3) bond length is 1.52 Å. The P(1)-O(5) bond length is 1.54 Å. The P(1)-O(8) bond length is 1.55 Å. In the second P site, P(2) is bonded in a tetrahedral geometry to one O(2), one O(4), one O(6), and one O(7) atom. The P(2)-O(2) bond length is 1.53 Å. The P(2)-O(4) bond length is 1.55 Å. The P(2)-O(6) bond length is 1.54 Å. The P(2)-O(7) bond length is 1.54 Å. There are eight inequivalent O sites. In the first O site, O(7) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), and one P(2) atom. In the second O site, O(8) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), and one P(1) atom. In the third O site, O(1) is bonded in a 1-coordinate geometry to one Pb(1), one Pb(4), one Pb(5), and one P(1) atom. In the fourth O site, O(2) is bonded in a 2-coordinate geometry to one Pb(2) and one P(2) atom. In the fifth O site, O(3) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(3), and one P(1) atom. In the sixth O site, O(4) is bonded in a distorted single-bond geometry to one Pb(2), one Pb(4), one Pb(5), and one P(2) atom. In the seventh O site, O(5) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), one Pb(5), and one P(1) atom. In the eighth O site, O(6) is bonded in a distorted single-bond geometry to one Pb(1), one Pb(2), and one P(2) atom.