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Title: Materials Data on SnHg7(P2Br3)2 by Materials Project

Abstract

Hg7Sn(P2Br3)2 crystallizes in the cubic P2_13 space group. The structure is three-dimensional. there are three inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded to two P3- and three Br1- atoms to form distorted HgP2Br3 square pyramids that share corners with three equivalent HgP2Br4 octahedra, corners with two equivalent HgP2Br3 square pyramids, a cornercorner with one PHg3P tetrahedra, an edgeedge with one HgP2Br4 octahedra, and edges with two equivalent HgP2Br3 square pyramids. The corner-sharing octahedra tilt angles range from 44–58°. There are one shorter (2.48 Å) and one longer (2.51 Å) Hg–P bond lengths. There are a spread of Hg–Br bond distances ranging from 3.01–3.45 Å. In the second Hg2+ site, Hg2+ is bonded to two P3- and four Br1- atoms to form distorted HgP2Br4 octahedra that share corners with two equivalent HgP2Br4 octahedra, corners with three equivalent HgP2Br3 square pyramids, a cornercorner with one PHg3P tetrahedra, edges with four equivalent HgP2Br4 octahedra, and an edgeedge with one HgP2Br3 square pyramid. The corner-sharing octahedral tilt angles are 30°. There are one shorter (2.47 Å) and one longer (2.48 Å) Hg–P bond lengths. There are a spread of Hg–Br bond distances ranging from 3.14–3.48 Å. In the third Hg2+more » site, Hg2+ is bonded in a linear geometry to two P3- atoms. Both Hg–P bond lengths are 2.42 Å. Sn4+ is bonded in a distorted T-shaped geometry to three equivalent Br1- atoms. All Sn–Br bond lengths are 2.76 Å. There are four inequivalent P3- sites. In the first P3- site, P3- is bonded to four Hg2+ atoms to form corner-sharing PHg4 trigonal pyramids. In the second P3- site, P3- is bonded to four Hg2+ atoms to form PHg4 tetrahedra that share corners with three equivalent PHg3P tetrahedra and a cornercorner with one PHg4 trigonal pyramid. In the third P3- site, P3- is bonded to three equivalent Hg2+ and one P3- atom to form PHg3P tetrahedra that share corners with three equivalent HgP2Br4 octahedra and corners with three equivalent PHg4 trigonal pyramids. The corner-sharing octahedral tilt angles are 69°. The P–P bond length is 2.21 Å. In the fourth P3- site, P3- is bonded to three equivalent Hg2+ and one P3- atom to form PHg3P tetrahedra that share corners with three equivalent HgP2Br3 square pyramids and corners with three equivalent PHg4 tetrahedra. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 1-coordinate geometry to three Hg2+ and one Sn4+ atom. In the second Br1- site, Br1- is bonded in a 4-coordinate geometry to four Hg2+ atoms.« less

Authors:
Contributors:
Researcher:
Publication Date:
Other Number(s):
mp-570135
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Product Type:
Dataset
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; SnHg7(P2Br3)2; Br-Hg-P-Sn
OSTI Identifier:
1275534
DOI:
10.17188/1275534

Citation Formats

Persson, Kristin, and Project, Materials. Materials Data on SnHg7(P2Br3)2 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1275534.
Persson, Kristin, & Project, Materials. Materials Data on SnHg7(P2Br3)2 by Materials Project. United States. doi:10.17188/1275534.
Persson, Kristin, and Project, Materials. 2020. "Materials Data on SnHg7(P2Br3)2 by Materials Project". United States. doi:10.17188/1275534. https://www.osti.gov/servlets/purl/1275534. Pub date:Fri May 29 00:00:00 EDT 2020
@article{osti_1275534,
title = {Materials Data on SnHg7(P2Br3)2 by Materials Project},
author = {Persson, Kristin and Project, Materials},
abstractNote = {Hg7Sn(P2Br3)2 crystallizes in the cubic P2_13 space group. The structure is three-dimensional. there are three inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded to two P3- and three Br1- atoms to form distorted HgP2Br3 square pyramids that share corners with three equivalent HgP2Br4 octahedra, corners with two equivalent HgP2Br3 square pyramids, a cornercorner with one PHg3P tetrahedra, an edgeedge with one HgP2Br4 octahedra, and edges with two equivalent HgP2Br3 square pyramids. The corner-sharing octahedra tilt angles range from 44–58°. There are one shorter (2.48 Å) and one longer (2.51 Å) Hg–P bond lengths. There are a spread of Hg–Br bond distances ranging from 3.01–3.45 Å. In the second Hg2+ site, Hg2+ is bonded to two P3- and four Br1- atoms to form distorted HgP2Br4 octahedra that share corners with two equivalent HgP2Br4 octahedra, corners with three equivalent HgP2Br3 square pyramids, a cornercorner with one PHg3P tetrahedra, edges with four equivalent HgP2Br4 octahedra, and an edgeedge with one HgP2Br3 square pyramid. The corner-sharing octahedral tilt angles are 30°. There are one shorter (2.47 Å) and one longer (2.48 Å) Hg–P bond lengths. There are a spread of Hg–Br bond distances ranging from 3.14–3.48 Å. In the third Hg2+ site, Hg2+ is bonded in a linear geometry to two P3- atoms. Both Hg–P bond lengths are 2.42 Å. Sn4+ is bonded in a distorted T-shaped geometry to three equivalent Br1- atoms. All Sn–Br bond lengths are 2.76 Å. There are four inequivalent P3- sites. In the first P3- site, P3- is bonded to four Hg2+ atoms to form corner-sharing PHg4 trigonal pyramids. In the second P3- site, P3- is bonded to four Hg2+ atoms to form PHg4 tetrahedra that share corners with three equivalent PHg3P tetrahedra and a cornercorner with one PHg4 trigonal pyramid. In the third P3- site, P3- is bonded to three equivalent Hg2+ and one P3- atom to form PHg3P tetrahedra that share corners with three equivalent HgP2Br4 octahedra and corners with three equivalent PHg4 trigonal pyramids. The corner-sharing octahedral tilt angles are 69°. The P–P bond length is 2.21 Å. In the fourth P3- site, P3- is bonded to three equivalent Hg2+ and one P3- atom to form PHg3P tetrahedra that share corners with three equivalent HgP2Br3 square pyramids and corners with three equivalent PHg4 tetrahedra. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 1-coordinate geometry to three Hg2+ and one Sn4+ atom. In the second Br1- site, Br1- is bonded in a 4-coordinate geometry to four Hg2+ atoms.},
doi = {10.17188/1275534},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}

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