Materials Data on KLaCuTe4 by Materials Project

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

DOI:https://doi.org/10.17188/1751297· OSTI ID:1751297

KLaCuTe4 crystallizes in the orthorhombic Pmmn space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight Te+1.50- atoms. There are four shorter (3.49 Å) and four longer (3.73 Å) K–Te bond lengths. La3+ is bonded in a 9-coordinate geometry to nine Te+1.50- atoms. There are a spread of La–Te bond distances ranging from 3.31–3.41 Å. Cu2+ is bonded to four equivalent Te+1.50- atoms to form a mixture of corner and edge-sharing CuTe4 tetrahedra. There are two shorter (2.69 Å) and two longer (2.70 Å) Cu–Te bond lengths. There are four inequivalent Te+1.50- sites. In the first Te+1.50- site, Te+1.50- is bonded in a 8-coordinate geometry to two equivalent K1+, two equivalent La3+, and four equivalent Te+1.50- atoms. All Te–Te bond lengths are 3.18 Å. In the second Te+1.50- site, Te+1.50- is bonded in a 5-coordinate geometry to five equivalent La3+ atoms. In the third Te+1.50- site, Te+1.50- is bonded in a 8-coordinate geometry to four equivalent K1+ and four equivalent Cu2+ atoms. In the fourth Te+1.50- site, Te+1.50- is bonded in a 8-coordinate geometry to two equivalent K1+, two equivalent La3+, and four equivalent Te+1.50- atoms.

• 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: 1751297
• Report Number(s): mp-1211368
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
Cu-K-La-Te
KLaCuTe4
crystal structure