DOI: 10.17188/1284131
title: Materials Data on U11Se20 by Materials Project

description: U11Se20 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twenty-two inequivalent U+3.64+ sites. In the first U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.90–2.97 Å. In the second U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.88–3.21 Å. In the third U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.87–3.16 Å. In the fourth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.88–3.17 Å. In the fifth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.88–3.24 Å. In the sixth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.88–3.18 Å. In the seventh U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.88–3.20 Å. In the eighth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.88–3.19 Å. In the ninth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.88–3.16 Å. In the tenth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.90–2.99 Å. In the eleventh U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.90–3.00 Å. In the twelfth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.90–2.97 Å. In the thirteenth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.87–3.16 Å. In the fourteenth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.88–3.19 Å. In the fifteenth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.88–3.23 Å. In the sixteenth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.88–3.20 Å. In the seventeenth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.87–3.17 Å. In the eighteenth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.88–3.19 Å. In the nineteenth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.88–3.25 Å. In the twentieth U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.88–3.18 Å. In the twenty-first U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.90–3.00 Å. In the twenty-second U+3.64+ site, U+3.64+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of U–Se bond distances ranging from 2.90–2.99 Å. There are forty inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to four U+3.64+ atoms to form SeU4 tetrahedra that share a cornercorner with one SeU5 trigonal bipyramid, corners with four SeU4 trigonal pyramids, edges with two equivalent SeU4 tetrahedra, an edgeedge with one SeU5 trigonal bipyramid, and an edgeedge with one SeU4 trigonal pyramid. In the second Se2- site, Se2- is bonded to four U+3.64+ atoms to form SeU4 tetrahedra that share corners with three SeU5 trigonal bipyramids, corners with four SeU4 trigonal pyramids, edges with two equivalent SeU4 tetrahedra, and an edgeedge with one SeU4 trigonal pyramid. In the third Se2- site, Se2- is bonded to four U+3.64+ atoms to form SeU4 tetrahedra that share corners with four SeU5 trigonal bipyramids, corners with four SeU4 trigonal pyramids, edges with two equivalent SeU4 tetrahedra, an edgeedge with one SeU5 trigonal bipyramid, and an edgeedge with one SeU4 trigonal pyramid. In the fourth Se2- site, Se2- is bonded in a 5-coordinate geometry to five U+3.64+ atoms. In the fifth Se2- site, Se2- is bonded to five U+3.64+ atoms to form distorted SeU5 trigonal bipyramids that share corners with four SeU4 tetrahedra, corners with four SeU4 trigonal pyramids, an edgeedge with one SeU4 tetrahedra, and edges with three SeU5 trigonal bipyramids. In the sixth Se2- site, Se2- is bonded to five U+3.64+ atoms to form distorted SeU5 trigonal bipyramids that share corners with four SeU4 tetrahedra, corners with two equivalent SeU5 trigonal bipyramids, corners with four SeU4 trigonal pyramids, an edgeedge with one SeU4 tetrahedra, and edges with two equivalent SeU5 trigonal bipyramids. In the seventh Se2- site, Se2- is bonded in a 5-coordinate geometry to five U+3.64+ atoms. In the eighth Se2- site, Se2- is bonded in a 5-coordinate geometry to five U+3.64+ atoms. In the ninth Se2- site, Se2- is bonded in a 5-coordinate geometry to five U+3.64+ atoms. In the tenth Se2- site, Se2- is bonded to five U+3.64+ atoms to form distorted SeU5 trigonal bipyramids that share corners with four SeU4 tetrahedra, corners with two equivalent SeU5 trigonal bipyramids, corners with four SeU4 trigonal pyramids, an edgeedge with one SeU4 tetrahedra, and an edgeedge with one SeU5 trigonal bipyramid. In the eleventh Se2- site, Se2- is bonded in a 5-coordinate geometry to five U+3.64+ atoms. In the twelfth Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to four U+3.64+ atoms. In the thirteenth Se2- site, Se2- is bonded to four U+3.64+ atoms to form distorted SeU4 trigonal pyramids that share corners with four SeU4 tetrahedra, corners with two SeU5 trigonal bipyramids, a cornercorner with one SeU4 trigonal pyramid, an edgeedge with one SeU4 tetrahedra, and edges with two SeU4 trigonal pyramids. In the fourteenth Se2- site, Se2- is bonded to four U+3.64+ atoms to form distorted SeU4 trigonal pyramids that share corners with four SeU4 tetrahedra, corners with two equivalent SeU5 trigonal bipyramids, a cornercorner with one SeU4 trigonal pyramid, an edgeedge with one SeU4 tetrahedra, and edges with two SeU4 trigonal pyramids. In the fifteenth Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to four U+3.64+ atoms. In the sixteenth Se2- site, Se2- is bonded to four U+3.64+ atoms to form distorted SeU4 trigonal pyramids that share corners with four SeU4 tetrahedra, corners with four SeU5 trigonal bipyramids, a cornercorner with one SeU4 trigonal pyramid, an edgeedge with one SeU4 tetrahedra, and edges with two SeU4 trigonal pyramids. In the seventeenth Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to four U+3.64+ atoms. In the eighteenth Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to four U+3.64+ atoms. In the nineteenth Se2- site, Se2- is bonded to four U+3.64+ atoms to form distorted SeU4 trigonal pyramids that share corners with four SeU4 tetrahedra, corners with four SeU5 trigonal bipyramids, a cornercorner with one SeU4 trigonal pyramid, an edgeedge with one SeU4 tetrahedra, and edges with two SeU4 trigonal pyramids. In the twentieth Se2- site, Se2- is bonded to four U+3.64+ atoms to form SeU4 tetrahedra that share corners with four SeU5 trigonal bipyramids, corners with four SeU4 trigonal pyramids, edges with two equivalent SeU4 tetrahedra, an edgeedge with one SeU5 trigonal bipyramid, and an edgeedge with one SeU4 trigonal pyramid. In the twenty-first Se2- site, Se2- is bonded to four U+3.64+ atoms to form SeU4 tetrahedra that share corners with three SeU5 trigonal bipyramids, corners with four SeU4 trigonal pyramids, edges with two equivalent SeU4 tetrahedra, and an edgeedge with one SeU4 trigonal pyramid. In the twenty-second Se2- site, Se2- is bonded to four U+3.64+ atoms to form SeU4 tetrahedra that share a cornercorner with one SeU5 trigonal bipyramid, corners with four SeU4 trigonal pyramids, edges with two equivalent SeU4 tetrahedra, an edgeedge with one SeU5 trigonal bipyramid, and an edgeedge with one SeU4 trigonal pyramid. In the twenty-third Se2- site, Se2- is bonded to four U+3.64+ atoms to form SeU4 tetrahedra that share corners with four SeU5 trigonal bipyramids, corners with four SeU4 trigonal pyramids, edges with two equivalent SeU4 tetrahedra, an edgeedge with one SeU5 trigonal bipyramid, and an edgeedge with one SeU4 trigonal pyramid. In the twenty-fourth Se2- site, Se2- is bonded in a 5-coordinate geometry to five U+3.64+ atoms. In the twenty-fifth Se2- site, Se2- is bonded in a 5-coordinate geometry to five U+3.64+ atoms. In the twenty-sixth Se2- site, Se2- is bonded in a 5-coordinate geometry to five U+3.64+ atoms. In the twenty-seventh Se2- site, Se2- is bonded to five U+3.64+ atoms to form distorted SeU5 trigonal bipyramids that share corners with four SeU4 tetrahedra, corners with two equivalent SeU5 trigonal bipyramids, corners with four SeU4 trigonal pyramids, an edgeedge with one SeU4 tetrahedra, and edges with two equivalent SeU5 trigonal bipyramids. In the twenty-eighth Se2- site, Se2- is bonded to five U+3.64+ atoms to form distorted SeU5 trigonal bipyramids that share corners with four SeU4 tetrahedra, corners with two equivalent SeU5 trigonal bipyramids, corners with four SeU4 trigonal pyramids, an edgeedge with one SeU4 tetrahedra, and an edgeedge with one SeU5 trigonal bipyramid. In the twenty-ninth Se2- site, Se2- is bonded to five U+3.64+ atoms to form distorted SeU5 trigonal bipyramids that share corners with four SeU4 tetrahedra, corners with four SeU4 trigonal pyramids, an edgeedge with one SeU4 tetrahedra, and edges with three SeU5 trigonal bipyramids. In the thirtieth Se2- site, Se2- is bonded in a 5-coordinate geometry to five U+3.64+ atoms. In the thirty-first Se2- site, Se2- is bonded in a 5-coordinate geometry to five U+3.64+ atoms. In the thirty-second Se2- site, Se2- is bonded to four U+3.64+ atoms to form distorted SeU4 trigonal pyramids that share corners with four SeU4 tetrahedra, corners with four SeU5 trigonal bipyramids, a cornercorner with one SeU4 trigonal pyramid, an edgeedge with one SeU4 tetrahedra, and edges with two SeU4 trigonal pyramids. In the thirty-third Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to four U+3.64+ atoms. In the thirty-fourth Se2- site, Se2- is bonded to four U+3.64+ atoms to form distorted SeU4 trigonal pyramids that share corners with four SeU4 tetrahedra, corners with two equivalent SeU5 trigonal bipyramids, a cornercorner with one SeU4 trigonal pyramid, an edgeedge with one SeU4 tetrahedra, and edges with two SeU4 trigonal pyramids. In the thirty-fifth Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to four U+3.64+ atoms. In the thirty-sixth Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to four U+3.64+ atoms. In the thirty-seventh Se2- site, Se2- is bonded to four U+3.64+ atoms to form distorted SeU4 trigonal pyramids that share corners with four SeU4 tetrahedra, corners with four SeU5 trigonal bipyramids, a cornercorner with one SeU4 trigonal pyramid, an edgeedge with one SeU4 tetrahedra, and edges with two SeU4 trigonal pyramids. In the thirty-eighth Se2-