Materials Data on Na4UC3O11 by Materials Project
Na4UC3O11 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are nine inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.35–2.85 Å. In the second Na1+ site, Na1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Na–O bond distances ranging from 2.33–2.64 Å. In the third Na1+ site, Na1+ is bonded to six O2- atoms to form distorted face-sharing NaO6 pentagonal pyramids. There are a spread of Na–O bond distances ranging from 2.47–2.59 Å. In the fourth Na1+ site, Na1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Na–O bond distances ranging from 2.34–2.56 Å. In the fifth Na1+ site, Na1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Na–O bond distances ranging from 2.33–2.57 Å. In the sixth Na1+ site, Na1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Na–O bond distances ranging from 2.33–2.52 Å. In the seventh Na1+ site, Na1+ is bonded to six O2- atoms to form face-sharing NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.45–2.52 Å. In the eighth Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.35–2.96 Å. In the ninth Na1+ site, Na1+ is bonded to six O2- atoms to form face-sharing NaO6 octahedra. There are a spread of Na–O bond distances ranging from 2.44–2.55 Å. There are two inequivalent U6+ sites. In the first U6+ site, U6+ is bonded in a distorted hexagonal bipyramidal geometry to eight O2- atoms. There are a spread of U–O bond distances ranging from 1.86–2.44 Å. In the second U6+ site, U6+ is bonded in a distorted hexagonal bipyramidal geometry to eight O2- atoms. There are a spread of U–O bond distances ranging from 1.86–2.44 Å. There are six inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.27–1.32 Å. In the second C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.27–1.32 Å. In the third C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.27–1.32 Å. In the fourth C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.27–1.32 Å. In the fifth C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.27–1.32 Å. In the sixth C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.27–1.32 Å. There are twenty-two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one U6+, and one C4+ atom. In the second O2- site, O2- is bonded to three Na1+ and one C4+ atom to form a mixture of distorted edge and corner-sharing ONa3C tetrahedra. In the third O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Na1+ and one U6+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two Na1+, one U6+, and one C4+ atom. In the fifth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Na1+ and one U6+ atom. In the sixth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Na1+ and one U6+ atom. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to three Na1+ and one C4+ atom. In the eighth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three Na1+ and one U6+ atom. In the ninth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one U6+, and one C4+ atom. In the tenth O2- site, O2- is bonded to three Na1+ and one C4+ atom to form a mixture of distorted edge and corner-sharing ONa3C tetrahedra. In the eleventh O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one U6+, and one C4+ atom. In the twelfth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one U6+, and one C4+ atom. In the thirteenth O2- site, O2- is bonded in a 4-coordinate geometry to three Na1+ and one C4+ atom. In the fourteenth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one U6+, and one C4+ atom. In the fifteenth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one U6+, and one C4+ atom. In the sixteenth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one U6+, and one C4+ atom. In the seventeenth O2- site, O2- is bonded in a 1-coordinate geometry to two Na1+, one U6+, and one C4+ atom. In the eighteenth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one U6+, and one C4+ atom. In the nineteenth O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one U6+, and one C4+ atom. In the twentieth O2- site, O2- is bonded to three Na1+ and one C4+ atom to form a mixture of distorted edge and corner-sharing ONa3C tetrahedra. In the twenty-first O2- site, O2- is bonded to three Na1+ and one C4+ atom to form a mixture of distorted edge and corner-sharing ONa3C tetrahedra. In the twenty-second O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, one U6+, and one C4+ atom.