Ag2Hg3P4Br3 crystallizes in the monoclinic C2 space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 6-coordinate geometry to one P(2), one P(3), one Br(2), one Br(3), and two equivalent Br(1) atoms. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to one P(2), one P(4), one Br(1), one Br(2), and one Br(3) atom. There are three inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a distorted T-shaped geometry to one P(1), one P(2), and one Br(2) atom. In the second Hg site, Hg(2) is bonded in a distorted T-shaped geometry to one P(1), one P(3), and one Br(3) atom. In the third Hg site, Hg(3) is bonded in a linear geometry to one P(1) and one P(4) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded to one Hg(1), one Hg(2), one Hg(3), and one P(1) atom to form corner-sharing PHg3P tetrahedra. In the second P site, P(2) is bonded in a 5-coordinate geometry to one Ag(1), one Ag(2), one Hg(1), one P(2), and one P(4) atom. In the third P site, P(3) is bonded in a 4-coordinate geometry to one Ag(1), one Hg(2), one P(3), and one P(4) atom. In the fourth P site, P(4) is bonded to one Ag(2), one Hg(3), one P(2), and one P(3) atom to form distorted corner-sharing PAgHgP2 tetrahedra. There are three inequivalent Br sites. In the first Br site, Br(1) is bonded in a 3-coordinate geometry to one Ag(2) and two equivalent Ag(1) atoms. In the second Br site, Br(2) is bonded in a 3-coordinate geometry to one Ag(1), one Ag(2), and one Hg(1) atom. In the third Br site, Br(3) is bonded in a 3-coordinate geometry to one Ag(1), one Ag(2), and one Hg(2) atom.
Ag2Hg3P4Br3 crystallizes in the monoclinic C2 space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 6-coordinate geometry to one P(2), one P(3), one Br(2), one Br(3), and two equivalent Br(1) atoms. The Ag(1)-P(2) bond length is 2.55 Å. The Ag(1)-P(3) bond length is 2.55 Å. The Ag(1)-Br(2) bond length is 3.29 Å. The Ag(1)-Br(3) bond length is 3.04 Å. There is one shorter (2.97 Å) and one longer (3.09 Å) Ag(1)-Br(1) bond length. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to one P(2), one P(4), one Br(1), one Br(2), and one Br(3) atom. The Ag(2)-P(2) bond length is 3.18 Å. The Ag(2)-P(4) bond length is 2.65 Å. The Ag(2)-Br(1) bond length is 2.81 Å. The Ag(2)-Br(2) bond length is 2.73 Å. The Ag(2)-Br(3) bond length is 2.78 Å. There are three inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a distorted T-shaped geometry to one P(1), one P(2), and one Br(2) atom. The Hg(1)-P(1) bond length is 2.49 Å. The Hg(1)-P(2) bond length is 2.50 Å. The Hg(1)-Br(2) bond length is 3.18 Å. In the second Hg site, Hg(2) is bonded in a distorted T-shaped geometry to one P(1), one P(3), and one Br(3) atom. The Hg(2)-P(1) bond length is 2.48 Å. The Hg(2)-P(3) bond length is 2.48 Å. The Hg(2)-Br(3) bond length is 3.24 Å. In the third Hg site, Hg(3) is bonded in a linear geometry to one P(1) and one P(4) atom. The Hg(3)-P(1) bond length is 2.49 Å. The Hg(3)-P(4) bond length is 2.48 Å. There are four inequivalent P sites. In the first P site, P(1) is bonded to one Hg(1), one Hg(2), one Hg(3), and one P(1) atom to form corner-sharing PHg3P tetrahedra. The P(1)-P(1) bond length is 2.18 Å. In the second P site, P(2) is bonded in a 5-coordinate geometry to one Ag(1), one Ag(2), one Hg(1), one P(2), and one P(4) atom. The P(2)-P(2) bond length is 2.21 Å. The P(2)-P(4) bond length is 2.23 Å. In the third P site, P(3) is bonded in a 4-coordinate geometry to one Ag(1), one Hg(2), one P(3), and one P(4) atom. The P(3)-P(3) bond length is 2.21 Å. The P(3)-P(4) bond length is 2.23 Å. In the fourth P site, P(4) is bonded to one Ag(2), one Hg(3), one P(2), and one P(3) atom to form distorted corner-sharing PAgHgP2 tetrahedra. There are three inequivalent Br sites. In the first Br site, Br(1) is bonded in a 3-coordinate geometry to one Ag(2) and two equivalent Ag(1) atoms. In the second Br site, Br(2) is bonded in a 3-coordinate geometry to one Ag(1), one Ag(2), and one Hg(1) atom. In the third Br site, Br(3) is bonded in a 3-coordinate geometry to one Ag(1), one Ag(2), and one Hg(2) atom.