Materials Data on Sc3Re2Si3 by Materials Project
Sc3Re2Si3 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are three inequivalent Sc2+ sites. In the first Sc2+ site, Sc2+ is bonded in a distorted pentagonal planar geometry to five Si4- atoms. There are a spread of Sc–Si bond distances ranging from 2.74–2.91 Å. In the second Sc2+ site, Sc2+ is bonded to six Si4- atoms to form ScSi6 pentagonal pyramids that share corners with two equivalent ScSi6 pentagonal pyramids, a cornercorner with one ReSi4 tetrahedra, edges with three equivalent ScSi6 pentagonal pyramids, an edgeedge with one ReSi4 tetrahedra, and a faceface with one ReSi4 tetrahedra. There are a spread of Sc–Si bond distances ranging from 2.75–2.95 Å. In the third Sc2+ site, Sc2+ is bonded in a 5-coordinate geometry to six Si4- atoms. There are a spread of Sc–Si bond distances ranging from 2.75–3.33 Å. There are two inequivalent Re3+ sites. In the first Re3+ site, Re3+ is bonded to four Si4- atoms to form distorted ReSi4 tetrahedra that share a cornercorner with one ScSi6 pentagonal pyramid, an edgeedge with one ScSi6 pentagonal pyramid, edges with two equivalent ReSi4 tetrahedra, and a faceface with one ScSi6 pentagonal pyramid. There are a spread of Re–Si bond distances ranging from 2.40–2.46 Å. In the second Re3+ site, Re3+ is bonded in a rectangular see-saw-like geometry to four Si4- atoms. There are a spread of Re–Si bond distances ranging from 2.47–2.59 Å. There are four inequivalent Si4- sites. In the first Si4- site, Si4- is bonded in a 10-coordinate geometry to six Sc2+, two equivalent Re3+, and two equivalent Si4- atoms. There are one shorter (2.58 Å) and one longer (2.70 Å) Si–Si bond lengths. In the second Si4- site, Si4- is bonded in a 10-coordinate geometry to six Sc2+, two equivalent Re3+, and two equivalent Si4- atoms. In the third Si4- site, Si4- is bonded in a 9-coordinate geometry to five Sc2+ and four Re3+ atoms. In the fourth Si4- site, Si4- is bonded in a 8-coordinate geometry to six Sc2+ and two equivalent Re3+ atoms.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Contributing Organization:
- MIT; UC Berkeley; Duke; U Louvain
- DOE Contract Number:
- AC02-05CH11231; EDCBEE
- OSTI ID:
- 1266596
- Report Number(s):
- mp-542607
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
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