DOE OSTI2020
MnFe4(BiO3)5 is Ilmenite-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are two inequivalent Mn3+ sites. In the first Mn3+ site, Mn3+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six FeO6 octahedra. The corner-sharing octahedra tilt angles range from 26–29°. There are a spread of Mn–O bond distances ranging from 1.96–2.27 Å. In the second Mn3+ site, Mn3+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six FeO6 octahedra. The corner-sharing octahedra tilt angles range from 26–30°. There are a spread of Mn–O bond distances ranging from 1.97–2.26 Å. There are eight inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one MnO6 octahedra and corners with five FeO6 octahedra. The corner-sharing octahedra tilt angles range from 25–29°. There are a spread of Fe–O bond distances ranging from 1.98–2.17 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent MnO6 octahedra and corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 28–30°. There are a spread of Fe–O bond distances ranging from 1.97–2.18 Å. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent MnO6 octahedra and corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 27–30°. There are a spread of Fe–O bond distances ranging from 1.99–2.14 Å. In the fourth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one MnO6 octahedra and corners with five FeO6 octahedra. The corner-sharing octahedra tilt angles range from 26–28°. There are a spread of Fe–O bond distances ranging from 1.98–2.20 Å. In the fifth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one MnO6 octahedra and corners with five FeO6 octahedra. The corner-sharing octahedra tilt angles range from 26–29°. There are a spread of Fe–O bond distances ranging from 1.99–2.21 Å. In the sixth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one MnO6 octahedra and corners with five FeO6 octahedra. The corner-sharing octahedra tilt angles range from 26–30°. There are a spread of Fe–O bond distances ranging from 1.98–2.19 Å. In the seventh Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent MnO6 octahedra and corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 26–30°. There are a spread of Fe–O bond distances ranging from 1.96–2.17 Å. In the eighth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent MnO6 octahedra and corners with four FeO6 octahedra. The corner-sharing octahedra tilt angles range from 25–29°. There are a spread of Fe–O bond distances ranging from 1.99–2.15 Å. There are ten inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.32–2.56 Å. In the second Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.29–2.53 Å. In the third Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.32–2.50 Å. In the fourth Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.28–2.54 Å. In the fifth Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.32–2.49 Å. In the sixth Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.30–2.52 Å. In the seventh Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.30–2.50 Å. In the eighth Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.32–2.47 Å. In the ninth Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.32–2.53 Å. In the tenth Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.29–2.56 Å. There are thirty inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the second O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the third O2- site, O2- is bonded in a distorted see-saw-like geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the fourth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the fifth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to two Fe3+ and two Bi3+ atoms. In the seventh O2- site, O2- is bonded in a distorted see-saw-like geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the eighth O2- site, O2- is bonded in a 4-coordinate geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the ninth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the tenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the eleventh O2- site, O2- is bonded in a 4-coordinate geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the twelfth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the thirteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Fe3+ and two Bi3+ atoms. In the fourteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the fifteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the sixteenth O2- site, O2- is bonded in a 4-coordinate geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the seventeenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the eighteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the nineteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the twentieth O2- site, O2- is bonded in a 4-coordinate geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the twenty-first O2- site, O2- is bonded in a distorted tetrahedral geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the twenty-second O2- site, O2- is bonded in a distorted tetrahedral geometry to two Fe3+ and two Bi3+ atoms. In the twenty-third O2- site, O2- is bonded in a distorted see-saw-like geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the twenty-fourth O2- site, O2- is bonded in a distorted tetrahedral geometry to two Fe3+ and two Bi3+ atoms. In the twenty-fifth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the twenty-sixth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the twenty-seventh O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the twenty-eighth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms. In the twenty-ninth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Mn3+, one Fe3+, and two Bi3+ atoms. In the thirtieth O2- site, O2- is bonded in a distorted see-saw-like geometry to two Fe3+ and two Bi3+ atoms.