Materials Data on Yb15C19 by Materials Project
Yb15C19 crystallizes in the tetragonal P-42_1c space group. The structure is three-dimensional. there are five inequivalent Yb+2.93+ sites. In the first Yb+2.93+ site, Yb+2.93+ is bonded to six C+2.32- atoms to form a mixture of edge and corner-sharing YbC6 octahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are two shorter (2.53 Å) and four longer (2.58 Å) Yb–C bond lengths. In the second Yb+2.93+ site, Yb+2.93+ is bonded to six C+2.32- atoms to form a mixture of edge and corner-sharing YbC6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Yb–C bond distances ranging from 2.57–2.73 Å. In the third Yb+2.93+ site, Yb+2.93+ is bonded in a 7-coordinate geometry to seven C+2.32- atoms. There are a spread of Yb–C bond distances ranging from 2.48–2.79 Å. In the fourth Yb+2.93+ site, Yb+2.93+ is bonded in a 7-coordinate geometry to seven C+2.32- atoms. There are a spread of Yb–C bond distances ranging from 2.48–2.77 Å. In the fifth Yb+2.93+ site, Yb+2.93+ is bonded to six C+2.32- atoms to form a mixture of edge and corner-sharing YbC6 octahedra. The corner-sharing octahedra tilt angles range from 0–2°. There are a spread of Yb–C bond distances ranging from 2.57–2.80 Å. There are six inequivalent C+2.32- sites. In the first C+2.32- site, C+2.32- is bonded to six Yb+2.93+ atoms to form a mixture of edge and corner-sharing CYb6 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second C+2.32- site, C+2.32- is bonded in a 6-coordinate geometry to five Yb+2.93+ and one C+2.32- atom. The C–C bond length is 1.33 Å. In the third C+2.32- site, C+2.32- is bonded in a 6-coordinate geometry to four Yb+2.93+ and two C+2.32- atoms. The C–C bond length is 1.33 Å. In the fourth C+2.32- site, C+2.32- is bonded to six Yb+2.93+ atoms to form a mixture of edge and corner-sharing CYb6 octahedra. The corner-sharing octahedra tilt angles range from 0–2°. In the fifth C+2.32- site, C+2.32- is bonded in a 6-coordinate geometry to five Yb+2.93+ and one C+2.32- atom. In the sixth C+2.32- site, C+2.32- is bonded to six Yb+2.93+ atoms to form a mixture of edge and corner-sharing CYb6 octahedra. The corner-sharing octahedra tilt angles range from 0–2°.