MnZn2Si(HO3)2 crystallizes in the monoclinic P2_1/c space group. Mn(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), and two equivalent O(5) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 5-coordinate geometry to one O(1), one O(3), one O(4), and two equivalent O(6) atoms. In the second Zn site, Zn(2) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form ZnO4 tetrahedra that share corners with two equivalent Si(1)O4 tetrahedra. Si(1) is bonded to one O(1), one O(3), one O(4), and one O(6) atom to form SiO4 tetrahedra that share corners with two equivalent Zn(2)O4 tetrahedra. There are two inequivalent H sites. In the first H site, H(1) is bonded in a distorted linear geometry to one O(2) and one O(5) atom. In the second H site, H(2) is bonded in a distorted linear geometry to one O(3) and one O(6) atom. There are six inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to one Zn(1), one Si(1), and one H(2) atom. In the second O site, O(4) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(2), and one Si(1) atom. In the third O site, O(5) is bonded to two equivalent Mn(1), one Zn(2), and one H(1) atom to form distorted edge-sharing OMn2ZnH trigonal pyramids. In the fourth O site, O(6) is bonded to two equivalent Zn(1), one Si(1), and one H(2) atom to form distorted edge-sharing OZn2SiH trigonal pyramids. In the fifth O site, O(1) is bonded in a 4-coordinate geometry to one Mn(1), one Zn(1), one Zn(2), and one Si(1) atom. In the sixth O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Mn(1), one Zn(2), and one H(1) atom.
MnZn2Si(HO3)2 crystallizes in the monoclinic P2_1/c space group. Mn(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), and two equivalent O(5) atoms. The Mn(1)-O(1) bond length is 2.23 Å. The Mn(1)-O(2) bond length is 2.03 Å. There is one shorter (2.06 Å) and one longer (2.07 Å) Mn(1)-O(5) bond length. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 5-coordinate geometry to one O(1), one O(3), one O(4), and two equivalent O(6) atoms. The Zn(1)-O(1) bond length is 2.35 Å. The Zn(1)-O(3) bond length is 2.17 Å. The Zn(1)-O(4) bond length is 2.00 Å. There is one shorter (2.06 Å) and one longer (2.21 Å) Zn(1)-O(6) bond length. In the second Zn site, Zn(2) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form ZnO4 tetrahedra that share corners with two equivalent Si(1)O4 tetrahedra. The Zn(2)-O(1) bond length is 2.08 Å. The Zn(2)-O(2) bond length is 1.93 Å. The Zn(2)-O(4) bond length is 2.14 Å. The Zn(2)-O(5) bond length is 1.89 Å. Si(1) is bonded to one O(1), one O(3), one O(4), and one O(6) atom to form SiO4 tetrahedra that share corners with two equivalent Zn(2)O4 tetrahedra. The Si(1)-O(1) bond length is 1.65 Å. The Si(1)-O(3) bond length is 1.69 Å. The Si(1)-O(4) bond length is 1.64 Å. The Si(1)-O(6) bond length is 1.66 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a distorted linear geometry to one O(2) and one O(5) atom. The H(1)-O(2) bond length is 1.02 Å. The H(1)-O(5) bond length is 1.58 Å. In the second H site, H(2) is bonded in a distorted linear geometry to one O(3) and one O(6) atom. The H(2)-O(3) bond length is 1.02 Å. The H(2)-O(6) bond length is 1.62 Å. There are six inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to one Zn(1), one Si(1), and one H(2) atom. In the second O site, O(4) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(2), and one Si(1) atom. In the third O site, O(5) is bonded to two equivalent Mn(1), one Zn(2), and one H(1) atom to form distorted edge-sharing OMn2ZnH trigonal pyramids. In the fourth O site, O(6) is bonded to two equivalent Zn(1), one Si(1), and one H(2) atom to form distorted edge-sharing OZn2SiH trigonal pyramids. In the fifth O site, O(1) is bonded in a 4-coordinate geometry to one Mn(1), one Zn(1), one Zn(2), and one Si(1) atom. In the sixth O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Mn(1), one Zn(2), and one H(1) atom.