Materials Data on La5AlSi2O13 by Materials Project
La5AlSi2O13 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are ten inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of La–O bond distances ranging from 2.36–2.84 Å. In the second La3+ site, La3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of La–O bond distances ranging from 2.33–2.94 Å. In the third La3+ site, La3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of La–O bond distances ranging from 2.32–2.90 Å. In the fourth La3+ site, La3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of La–O bond distances ranging from 2.33–2.91 Å. In the fifth La3+ site, La3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of La–O bond distances ranging from 2.31–2.84 Å. In the sixth La3+ site, La3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of La–O bond distances ranging from 2.36–2.92 Å. In the seventh La3+ site, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.40–2.94 Å. In the eighth La3+ site, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.44–2.91 Å. In the ninth La3+ site, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.38–2.98 Å. In the tenth La3+ site, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.41–2.95 Å. There are two inequivalent Al3+ sites. In the first Al3+ site, Al3+ is bonded in a tetrahedral geometry to four O2- atoms. There is one shorter (1.75 Å) and three longer (1.77 Å) Al–O bond length. In the second Al3+ site, Al3+ is bonded in a tetrahedral geometry to four O2- atoms. There is one shorter (1.75 Å) and three longer (1.77 Å) Al–O bond length. There are four inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded in a tetrahedral geometry to four O2- atoms. There is one shorter (1.64 Å) and three longer (1.65 Å) Si–O bond length. In the second Si4+ site, Si4+ is bonded in a tetrahedral geometry to four O2- atoms. There is one shorter (1.63 Å) and three longer (1.65 Å) Si–O bond length. In the third Si4+ site, Si4+ is bonded in a tetrahedral geometry to four O2- atoms. There is one shorter (1.64 Å) and three longer (1.65 Å) Si–O bond length. In the fourth Si4+ site, Si4+ is bonded in a tetrahedral geometry to four O2- atoms. There is one shorter (1.63 Å) and three longer (1.65 Å) Si–O bond length. There are twenty-six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Al3+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Si4+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three La3+ and one Si4+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Si4+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Al3+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Si4+ atom. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Al3+ atom. In the eighth O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Si4+ atom. In the ninth O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Si4+ atom. In the tenth O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Si4+ atom. In the eleventh O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Al3+ atom. In the twelfth O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Si4+ atom. In the thirteenth O2- site, O2- is bonded in a 4-coordinate geometry to three La3+ and one Al3+ atom. In the fourteenth O2- site, O2- is bonded in a distorted single-bond geometry to three La3+ and one Si4+ atom. In the fifteenth O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Si4+ atom. In the sixteenth O2- site, O2- is bonded in a distorted single-bond geometry to three La3+ and one Si4+ atom. In the seventeenth O2- site, O2- is bonded in a 4-coordinate geometry to three La3+ and one Al3+ atom. In the eighteenth O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Si4+ atom. In the nineteenth O2- site, O2- is bonded in a trigonal planar geometry to three La3+ atoms. In the twentieth O2- site, O2- is bonded in a trigonal planar geometry to three La3+ atoms. In the twenty-first O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Al3+ atom. In the twenty-second O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Si4+ atom. In the twenty-third O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Si4+ atom. In the twenty-fourth O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Si4+ atom. In the twenty-fifth O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Al3+ atom. In the twenty-sixth O2- site, O2- is bonded in a 1-coordinate geometry to three La3+ and one Si4+ atom.