Materials Data on K2Mn3H6S3O16 by Materials Project
K2Mn3H6S3O16 crystallizes in the orthorhombic Cmc2_1 space group. The structure is three-dimensional. K1+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of K–O bond distances ranging from 2.89–3.27 Å. There are two inequivalent Mn+4.67+ sites. In the first Mn+4.67+ site, Mn+4.67+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with two equivalent MnO6 octahedra, corners with three SO4 tetrahedra, and an edgeedge with one MnO6 octahedra. The corner-sharing octahedra tilt angles range from 55–60°. There are a spread of Mn–O bond distances ranging from 2.15–2.28 Å. In the second Mn+4.67+ site, Mn+4.67+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with four equivalent MnO6 octahedra and corners with four SO4 tetrahedra. The corner-sharing octahedra tilt angles range from 55–60°. There are a spread of Mn–O bond distances ranging from 2.18–2.31 Å. There are four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. There are two inequivalent S+3.33+ sites. In the first S+3.33+ site, S+3.33+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with three MnO6 octahedra. The corner-sharing octahedra tilt angles range from 38–52°. There are a spread of S–O bond distances ranging from 1.48–1.50 Å. In the second S+3.33+ site, S+3.33+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with four MnO6 octahedra. The corner-sharing octahedra tilt angles range from 42–60°. There is three shorter (1.49 Å) and one longer (1.50 Å) S–O bond length. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one K1+, one Mn+4.67+, and one S+3.33+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to three Mn+4.67+ and one H1+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent K1+, one Mn+4.67+, and one S+3.33+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one S+3.33+ atom. In the fifth O2- site, O2- is bonded in a distorted water-like geometry to one K1+, one Mn+4.67+, and two H1+ atoms. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent K1+, one Mn+4.67+, and one S+3.33+ atom. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to one K1+, one Mn+4.67+, and one S+3.33+ atom. In the eighth O2- site, O2- is bonded in a bent 120 degrees geometry to one Mn+4.67+ and one S+3.33+ atom. In the ninth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Mn+4.67+ and one S+3.33+ atom. In the tenth O2- site, O2- is bonded in a distorted single-bond geometry to three Mn+4.67+ and one H1+ atom.