Materials Data on K3Bi5(AsO4)6 by Materials Project
K3Bi5(AsO4)6 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of K–O bond distances ranging from 2.73–3.14 Å. In the second K1+ site, K1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of K–O bond distances ranging from 2.78–3.28 Å. There are three inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Bi–O bond distances ranging from 2.23–2.86 Å. In the second Bi3+ site, Bi3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.28–2.76 Å. In the third Bi3+ site, Bi3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.22–2.93 Å. There are three inequivalent As5+ sites. In the first As5+ site, As5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of As–O bond distances ranging from 1.69–1.77 Å. In the second As5+ site, As5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of As–O bond distances ranging from 1.71–1.74 Å. In the third As5+ site, As5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of As–O bond distances ranging from 1.72–1.74 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one K1+, one Bi3+, and one As5+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent K1+, one Bi3+, and one As5+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one K1+, two Bi3+, and one As5+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one K1+, one Bi3+, and one As5+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to one K1+, two equivalent Bi3+, and one As5+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to two K1+, two Bi3+, and one As5+ atom. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to one K1+, two Bi3+, and one As5+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+, one Bi3+, and one As5+ atom. In the ninth O2- site, O2- is bonded in a 1-coordinate geometry to two Bi3+ and one As5+ atom. In the tenth O2- site, O2- is bonded in a 1-coordinate geometry to one K1+, two Bi3+, and one As5+ atom. In the eleventh O2- site, O2- is bonded in a 1-coordinate geometry to two K1+, one Bi3+, and one As5+ atom. In the twelfth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Bi3+ and one As5+ atom.