Materials Data on Mg2Zn by Materials Project

Dataset · Sat May 02 04:00:00 EDT 2020

DOI:https://doi.org/10.17188/1734292· OSTI ID:1734292

Mg2Zn is beta-derived structured and crystallizes in the trigonal R32 space group. The structure is three-dimensional. there are two inequivalent Mg sites. In the first Mg site, Mg is bonded to eight Mg and four equivalent Zn atoms to form distorted MgMg8Zn4 cuboctahedra that share corners with eighteen equivalent MgMg8Zn4 cuboctahedra, edges with six equivalent MgMg8Zn4 cuboctahedra, edges with eight equivalent ZnMg9Zn3 cuboctahedra, faces with eight equivalent MgMg8Zn4 cuboctahedra, and faces with eight equivalent ZnMg9Zn3 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 2.94–3.15 Å. There are two shorter (3.11 Å) and two longer (3.17 Å) Mg–Zn bond lengths. In the second Mg site, Mg is bonded in a distorted hexagonal planar geometry to six equivalent Mg and six equivalent Zn atoms. All Mg–Zn bond lengths are 2.97 Å. Zn is bonded to nine Mg and three equivalent Zn atoms to form distorted ZnMg9Zn3 cuboctahedra that share corners with twelve equivalent ZnMg9Zn3 cuboctahedra, edges with six equivalent ZnMg9Zn3 cuboctahedra, edges with twelve equivalent MgMg8Zn4 cuboctahedra, faces with four equivalent ZnMg9Zn3 cuboctahedra, and faces with twelve equivalent MgMg8Zn4 cuboctahedra. All Zn–Zn bond lengths are 2.97 Å.

• 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: 1734292
• Report Number(s): mp-1094421
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
Mg-Zn
Mg2Zn
crystal structure