Materials Data on Dy2SiO5 by Materials Project

Dataset · Thu Apr 30 04:00:00 EDT 2020

DOI:https://doi.org/10.17188/1298362· OSTI ID:1298362

Dy2SiO5 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Dy3+ sites. In the first Dy3+ site, Dy3+ is bonded to six O2- atoms to form distorted DyO6 octahedra that share corners with four equivalent SiO4 tetrahedra and edges with two equivalent DyO6 octahedra. There are a spread of Dy–O bond distances ranging from 2.23–2.33 Å. In the second Dy3+ site, Dy3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Dy–O bond distances ranging from 2.21–2.40 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with four equivalent DyO6 octahedra. The corner-sharing octahedra tilt angles range from 44–62°. There are a spread of Si–O bond distances ranging from 1.64–1.66 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Dy3+ and one Si4+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Dy3+ and one Si4+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to two Dy3+ and one Si4+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to two Dy3+ and one Si4+ atom. In the fifth O2- site, O2- is bonded to four Dy3+ atoms to form edge-sharing ODy4 tetrahedra.

• Research Organization: LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
• Contributing Organization: The Materials Project; MIT; UC Berkeley; Duke; U Louvain
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1298362
• Report Number(s): mp-768317
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
Dy-O-Si
Dy2SiO5
crystal structure