Materials Data on Li9Mn2Co5O16 by Materials Project

Li9Mn2Co5O16 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are nine inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 4-coordinate geometry to one Mn+4.50+, one Co+2.80+, and four O2- atoms. The Li–Mn bond length is 2.19 Å. The Li–Co bond length is 2.20 Å. There are a spread of Li–O bond distances ranging from 1.97–2.19 Å. In the second Li1+ site, Li1+ is bonded in a 8-coordinate geometry to two Co+2.80+ and six O2- atoms. There are one shorter (2.18 Å) and one longer (2.20 Å) Li–Co bond lengths. There are a spread of Li–O bond distances ranging from 1.85–2.54 Å. In the third Li1+ site, Li1+ is bonded in a 3-coordinate geometry to two Co+2.80+ and three O2- atoms. There are one shorter (2.18 Å) and one longer (2.23 Å) Li–Co bond lengths. There are a spread of Li–O bond distances ranging from 2.00–2.12 Å. In the fourth Li1+ site, Li1+ is bonded in a 4-coordinate geometry to one Mn+4.50+ and four O2- atoms. The Li–Mn bond length is 2.25 Å. There are one shorter (2.07 Å) and three longer (2.14 Å) Li–O bond lengths. In the fifth Li1+ site, Li1+ is bonded in a 3-coordinate geometry to one Co+2.80+ and three O2- atoms. The Li–Co bond length is 2.19 Å. There are a spread of Li–O bond distances ranging from 1.93–2.14 Å. In the sixth Li1+ site, Li1+ is bonded in a 8-coordinate geometry to two Co+2.80+ and six O2- atoms. There are one shorter (2.18 Å) and one longer (2.21 Å) Li–Co bond lengths. There are a spread of Li–O bond distances ranging from 2.00–2.49 Å. In the seventh Li1+ site, Li1+ is bonded in a 4-coordinate geometry to one Co+2.80+ and four O2- atoms. The Li–Co bond length is 2.26 Å. There are a spread of Li–O bond distances ranging from 2.04–2.21 Å. In the eighth Li1+ site, Li1+ is bonded in a 2-coordinate geometry to one Co+2.80+ and two O2- atoms. The Li–Co bond length is 2.20 Å. There are one shorter (1.91 Å) and one longer (2.10 Å) Li–O bond lengths. In the ninth Li1+ site, Li1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 2.03–2.23 Å. There are two inequivalent Mn+4.50+ sites. In the first Mn+4.50+ site, Mn+4.50+ is bonded in a distorted square co-planar geometry to four O2- atoms. There are a spread of Mn–O bond distances ranging from 1.93–2.03 Å. In the second Mn+4.50+ site, Mn+4.50+ is bonded in a 8-coordinate geometry to two Li1+ and six O2- atoms. There are a spread of Mn–O bond distances ranging from 1.88–2.39 Å. There are five inequivalent Co+2.80+ sites. In the first Co+2.80+ site, Co+2.80+ is bonded in a 8-coordinate geometry to two Li1+ and six O2- atoms. There are a spread of Co–O bond distances ranging from 1.93–2.34 Å. In the second Co+2.80+ site, Co+2.80+ is bonded in a 8-coordinate geometry to two Li1+ and six O2- atoms. There are a spread of Co–O bond distances ranging from 1.87–2.34 Å. In the third Co+2.80+ site, Co+2.80+ is bonded in a 8-coordinate geometry to two Li1+ and six O2- atoms. There are a spread of Co–O bond distances ranging from 1.91–2.37 Å. In the fourth Co+2.80+ site, Co+2.80+ is bonded in a 8-coordinate geometry to two Li1+ and six O2- atoms. There are a spread of Co–O bond distances ranging from 1.93–2.36 Å. In the fifth Co+2.80+ site, Co+2.80+ is bonded in a distorted hexagonal bipyramidal geometry to two Li1+ and six O2- atoms. There are a spread of Co–O bond distances ranging from 1.94–2.36 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Mn+4.50+, and one Co+2.80+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to three Li1+ and three Co+2.80+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to three Li1+ and two Co+2.80+ atoms. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to three Li1+, one Mn+4.50+, and one Co+2.80+ atom. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two Mn+4.50+, and one Co+2.80+ atom. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to three Li1+ and three Co+2.80+ atoms. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+ and three Co+2.80+ atoms. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Mn+4.50+, and one Co+2.80+ atom. In the ninth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Mn+4.50+, and two Co+2.80+ atoms. In the tenth O2- site, O2- is bonded in a 4-coordinate geometry to three Li1+ and three Co+2.80+ atoms. In the eleventh O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+ and two Co+2.80+ atoms. In the twelfth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Mn+4.50+, and one Co+2.80+ atom. In the thirteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Mn+4.50+, and two Co+2.80+ atoms. In the fourteenth O2- site, O2- is bonded in a 4-coordinate geometry to three Li1+ and three Co+2.80+ atoms. In the fifteenth O2- site, O2- is bonded in a 4-coordinate geometry to three Li1+ and two Co+2.80+ atoms. In the sixteenth O2- site, O2- is bonded in a 3-coordinate geometry to two Li1+ and two Mn+4.50+ atoms.