Mg(SiO2)8 is Low Tridymite-derived structured and crystallizes in the orthorhombic Pmmm space group. The structure consists of one 7439-95-4 atom inside a SiO2 framework. In the SiO2 framework, there are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(2), one O(4), and two equivalent O(1) atoms to form corner-sharing SiO4 tetrahedra. In the second Si site, Si(2) is bonded to one O(3), one O(5), and two equivalent O(1) atoms to form corner-sharing SiO4 tetrahedra. There are five inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(2) atom. In the second O site, O(2) is bonded in a linear geometry to two equivalent Si(1) atoms. In the third O site, O(3) is bonded in a linear geometry to two equivalent Si(2) atoms. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to two equivalent Si(1) atoms. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to two equivalent Si(2) atoms.
Mg(SiO2)8 is Low Tridymite-derived structured and crystallizes in the orthorhombic Pmmm space group. The structure consists of one 7439-95-4 atom inside a SiO2 framework. In the SiO2 framework, there are two inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(2), one O(4), and two equivalent O(1) atoms to form corner-sharing SiO4 tetrahedra. The Si(1)-O(2) bond length is 1.62 Å. The Si(1)-O(4) bond length is 1.62 Å. Both Si(1)-O(1) bond lengths are 1.63 Å. In the second Si site, Si(2) is bonded to one O(3), one O(5), and two equivalent O(1) atoms to form corner-sharing SiO4 tetrahedra. The Si(2)-O(3) bond length is 1.62 Å. The Si(2)-O(5) bond length is 1.62 Å. Both Si(2)-O(1) bond lengths are 1.63 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Si(1) and one Si(2) atom. In the second O site, O(2) is bonded in a linear geometry to two equivalent Si(1) atoms. In the third O site, O(3) is bonded in a linear geometry to two equivalent Si(2) atoms. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to two equivalent Si(1) atoms. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to two equivalent Si(2) atoms.