DOE OSTI2020
LiH5TeO6 crystallizes in the monoclinic Pc space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with six TeO6 octahedra. The corner-sharing octahedra tilt angles range from 42–50°. There are a spread of Li–O bond distances ranging from 2.11–2.32 Å. In the second Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with six TeO6 octahedra. The corner-sharing octahedra tilt angles range from 42–53°. There are a spread of Li–O bond distances ranging from 2.11–2.32 Å. There are ten inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.63 Å) H–O bond length. In the second H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.62 Å) H–O bond length. In the third H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.62 Å) H–O bond length. In the fourth H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.63 Å) H–O bond length. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the sixth H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.68 Å) H–O bond length. In the seventh H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.66 Å) H–O bond length. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.75 Å) H–O bond length. In the tenth H1+ site, H1+ is bonded in a single-bond geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.75 Å) H–O bond length. There are two inequivalent Te6+ sites. In the first Te6+ site, Te6+ is bonded to six O2- atoms to form TeO6 octahedra that share corners with six LiO6 octahedra. The corner-sharing octahedra tilt angles range from 42–50°. There are a spread of Te–O bond distances ranging from 1.88–2.00 Å. In the second Te6+ site, Te6+ is bonded to six O2- atoms to form TeO6 octahedra that share corners with six LiO6 octahedra. The corner-sharing octahedra tilt angles range from 42–53°. There are a spread of Te–O bond distances ranging from 1.88–2.00 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one Li1+, one H1+, and one Te6+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one Li1+, one H1+, and one Te6+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one Li1+, one H1+, and one Te6+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one Li1+, one H1+, and one Te6+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to one Li1+, two H1+, and one Te6+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one Li1+, two H1+, and one Te6+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to one Li1+, two H1+, and one Te6+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to one Li1+, two H1+, and one Te6+ atom. In the ninth O2- site, O2- is bonded in a distorted single-bond geometry to one Li1+, one H1+, and one Te6+ atom. In the tenth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two H1+, and one Te6+ atom. In the eleventh O2- site, O2- is bonded in a distorted single-bond geometry to one Li1+, one H1+, and one Te6+ atom. In the twelfth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two H1+, and one Te6+ atom.