DOI: 10.17188/1284607
title: Materials Data on Na2Al2Si3(HO3)4 by Materials Project

description: Na2Al2Si3(HO3)4 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Na–O bond distances ranging from 2.34–2.58 Å. In the second Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.33–2.59 Å. In the third Na1+ site, Na1+ is bonded to four O2- atoms to form distorted NaO4 tetrahedra that share a cornercorner with one SiO4 tetrahedra, an edgeedge with one AlO4 tetrahedra, and an edgeedge with one AlO5 trigonal bipyramid. There are a spread of Na–O bond distances ranging from 2.32–2.46 Å. In the fourth Na1+ site, Na1+ is bonded in a 5-coordinate geometry to one H1+ and six O2- atoms. The Na–H bond length is 2.46 Å. There are a spread of Na–O bond distances ranging from 2.30–2.88 Å. There are four inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded to five O2- atoms to form AlO5 trigonal bipyramids that share a cornercorner with one AlO4 tetrahedra, a cornercorner with one SiHO3 tetrahedra, a cornercorner with one AlO5 trigonal bipyramid, and an edgeedge with one NaO4 tetrahedra. There are a spread of Al–O bond distances ranging from 1.77–2.03 Å. In the second Al3+ site, Al3+ is bonded to five O2- atoms to form distorted AlO5 trigonal bipyramids that share a cornercorner with one AlO4 tetrahedra, a cornercorner with one AlO5 trigonal bipyramid, and an edgeedge with one SiHO3 tetrahedra. There are a spread of Al–O bond distances ranging from 1.76–2.12 Å. In the third Al3+ site, Al3+ is bonded to four O2- atoms to form distorted AlO4 tetrahedra that share a cornercorner with one SiO4 tetrahedra, corners with two AlO5 trigonal bipyramids, and an edgeedge with one NaO4 tetrahedra. There are a spread of Al–O bond distances ranging from 1.73–1.85 Å. In the fourth Al3+ site, Al3+ is bonded in a 3-coordinate geometry to three O2- atoms. There is two shorter (1.77 Å) and one longer (1.96 Å) Al–O bond length. There are six inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded in a trigonal non-coplanar geometry to three O2- atoms. There are a spread of Si–O bond distances ranging from 1.60–1.68 Å. In the second Si4+ site, Si4+ is bonded to five O2- atoms to form corner-sharing SiO5 trigonal bipyramids. There are a spread of Si–O bond distances ranging from 1.70–1.84 Å. In the third Si4+ site, Si4+ is bonded to one H1+ and three O2- atoms to form SiHO3 tetrahedra that share a cornercorner with one AlO5 trigonal bipyramid and an edgeedge with one AlO5 trigonal bipyramid. The Si–H bond length is 1.47 Å. There are a spread of Si–O bond distances ranging from 1.62–1.67 Å. In the fourth Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one SiO4 tetrahedra and a cornercorner with one SiO5 trigonal bipyramid. There are a spread of Si–O bond distances ranging from 1.61–1.68 Å. In the fifth Si4+ site, Si4+ is bonded in a water-like geometry to one H1+ and one O2- atom. The Si–H bond length is 1.51 Å. The Si–O bond length is 1.71 Å. In the sixth Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one NaO4 tetrahedra, a cornercorner with one AlO4 tetrahedra, and a cornercorner with one SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.60–1.70 Å. There are eight inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one Si4+ atom. 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 Na1+ and one O2- atom. The H–O bond length is 0.98 Å. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one Si4+ atom. In the sixth H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.09 Å) and one longer (1.44 Å) H–O bond length. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.97 Å. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are twenty-four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Al3+, and one Si4+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Na1+, one Si4+, and one H1+ atom. In the third O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Al3+, one Si4+, and one H1+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one Al3+, and one O2- atom. The O–O bond length is 1.49 Å. In the fifth O2- site, O2- is bonded in a bent 150 degrees geometry to two Si4+ atoms. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one Al3+, one H1+, and one O2- atom. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+ and two Si4+ atoms. In the eighth O2- site, O2- is bonded in a 4-coordinate geometry to two Na1+ and two Al3+ atoms. In the ninth O2- site, O2- is bonded in a 1-coordinate geometry to two Na1+, one Al3+, and one H1+ atom. In the tenth O2- site, O2- is bonded in a 1-coordinate geometry to two Na1+, one Si4+, and one O2- atom. The O–O bond length is 1.54 Å. In the eleventh O2- site, O2- is bonded in a distorted T-shaped geometry to two Al3+ and one Si4+ atom. In the twelfth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Al3+, and one Si4+ atom. In the thirteenth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one Si4+, and one H1+ atom. In the fourteenth O2- site, O2- is bonded in a distorted T-shaped geometry to two Al3+ and one Si4+ atom. In the fifteenth O2- site, O2- is bonded in a bent 120 degrees geometry to one Si4+ and one H1+ atom. In the sixteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Na1+, one Al3+, and one O2- atom. The O–O bond length is 1.52 Å. In the seventeenth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Al3+, and one O2- atom. In the eighteenth O2- site, O2- is bonded in a water-like geometry to two Si4+ atoms. In the nineteenth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Na1+, one Al3+, and one Si4+ atom. In the twentieth O2- site, O2- is bonded in a distorted single-bond geometry to one Na1+, one Si4+, and one O2- atom. The O–O bond length is 1.50 Å. In the twenty-first O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+ and two Al3+ atoms. In the twenty-second O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one Si4+, and one O2- atom. In the twenty-third O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Si4+, and one O2- atom. In the twenty-fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+, one Si4+, and one H1+ atom.