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Title: Materials Data on CdH18Se4(N2O7)2 by Materials Project

Abstract

CdH2(Se2O7)2(NH4)4 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of four ammonium molecules and one CdH2(Se2O7)2 sheet oriented in the (0, 0, 1) direction. In the CdH2(Se2O7)2 sheet, Cd2+ is bonded to six O2- atoms to form CdO6 octahedra that share corners with two equivalent SeO4 tetrahedra. There are a spread of Cd–O bond distances ranging from 2.33–2.36 Å. H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.03 Å) and one longer (1.53 Å) H–O bond length. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a trigonal non-coplanar geometry to three O2- atoms. There are a spread of Se–O bond distances ranging from 1.71–1.78 Å. In the second Se2- site, Se2- is bonded to four O2- atoms to form SeO4 tetrahedra that share a cornercorner with one CdO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are a spread of Se–O bond distances ranging from 1.66–1.69 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Cd2+ and one Se2- atom. In the second O2- site,more » O2- is bonded in a bent 120 degrees geometry to one Cd2+ and one Se2- atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to one Cd2+ and one Se2- atom. In the fourth O2- site, O2- is bonded in a distorted water-like geometry to one H1+ and one Se2- atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one Se2- atom. In the sixth O2- site, O2- is bonded in a bent 120 degrees geometry to one H1+ and one Se2- atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one Se2- atom.« less

Publication Date:
Other Number(s):
mp-722467
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; CdH18Se4(N2O7)2; Cd-H-N-O-Se
OSTI Identifier:
1287478
DOI:
10.17188/1287478

Citation Formats

The Materials Project. Materials Data on CdH18Se4(N2O7)2 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1287478.
The Materials Project. Materials Data on CdH18Se4(N2O7)2 by Materials Project. United States. doi:10.17188/1287478.
The Materials Project. 2020. "Materials Data on CdH18Se4(N2O7)2 by Materials Project". United States. doi:10.17188/1287478. https://www.osti.gov/servlets/purl/1287478. Pub date:Mon Jul 20 00:00:00 EDT 2020
@article{osti_1287478,
title = {Materials Data on CdH18Se4(N2O7)2 by Materials Project},
author = {The Materials Project},
abstractNote = {CdH2(Se2O7)2(NH4)4 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of four ammonium molecules and one CdH2(Se2O7)2 sheet oriented in the (0, 0, 1) direction. In the CdH2(Se2O7)2 sheet, Cd2+ is bonded to six O2- atoms to form CdO6 octahedra that share corners with two equivalent SeO4 tetrahedra. There are a spread of Cd–O bond distances ranging from 2.33–2.36 Å. H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.03 Å) and one longer (1.53 Å) H–O bond length. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a trigonal non-coplanar geometry to three O2- atoms. There are a spread of Se–O bond distances ranging from 1.71–1.78 Å. In the second Se2- site, Se2- is bonded to four O2- atoms to form SeO4 tetrahedra that share a cornercorner with one CdO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are a spread of Se–O bond distances ranging from 1.66–1.69 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Cd2+ and one Se2- atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Cd2+ and one Se2- atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to one Cd2+ and one Se2- atom. In the fourth O2- site, O2- is bonded in a distorted water-like geometry to one H1+ and one Se2- atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one Se2- atom. In the sixth O2- site, O2- is bonded in a bent 120 degrees geometry to one H1+ and one Se2- atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one Se2- atom.},
doi = {10.17188/1287478},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}

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