Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “H2SeO4”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

2 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on H2SeO4 by Materials Project

H2SeO4 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is two-dimensional and consists of two H2SeO4 sheets oriented in the (0, 0, 1) direction. there are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.64 Å) H–O bond length. In the second H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.03 Å) and one longer (1.58 Å) H–O bond length. Se6+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Se–O bond distances ranging from 1.64–1.74 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one H1+ and one Se6+ atom. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one H1+ and one Se6+ atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to one H1+ and one Se6+ atom. In the fourth O2- site, O2- is bonded in a water-like geometry to one H1+ and one Se6+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H2SeO4 by Materials Project

H2SeO4 crystallizes in the monoclinic P2_1 space group. The structure is two-dimensional and consists of two H2SeO4 sheets oriented in the (0, 0, 1) direction. there are four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.01 Å) and one longer (1.69 Å) H–O bond length. In the second H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.62 Å) H–O bond length. In the third H1+ site, H1+ is bonded in a distorted linear geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.65 Å) H–O bond length. In the fourth H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.01 Å) and one longer (1.68 Å) H–O bond length. There are two inequivalent Se6+ sites. In the first Se6+ site, Se6+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Se–O bond distances ranging from 1.63–1.74 Å. In the second Se6+ site, Se6+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Se–O bond distances ranging from 1.63–1.74 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one H1+ and one Se6+ atom. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one H1+ and one Se6+ atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to one H1+ and one Se6+ atom. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one H1+ and one Se6+ atom. In the fifth O2- site, O2- is bonded in a water-like geometry to one H1+ and one Se6+ atom. In the sixth O2- site, O2- is bonded in a water-like geometry to one H1+ and one Se6+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one H1+ and one Se6+ atom. In the eighth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one H1+ and one Se6+ atom.

36 MATERIALS SCIENCE↗