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Results for “Np-P-S”

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.

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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Np(PS3)4 by Materials Project

Np(PS3)4 is I4/mcm-derived structured and crystallizes in the tetragonal I4_1/a space group. The structure is three-dimensional. Np4+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are four shorter (2.83 Å) and four longer (2.88 Å) Np–S bond lengths. P5+ is bonded to four S2- atoms to form edge-sharing PS4 tetrahedra. There are a spread of P–S bond distances ranging from 2.01–2.14 Å. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted L-shaped geometry to one Np4+ and one P5+ atom. In the second S2- site, S2- is bonded in an L-shaped geometry to two equivalent P5+ atoms. In the third S2- site, S2- is bonded in a distorted L-shaped geometry to one Np4+ and one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpPS4 by Materials Project

NpPS4 is Zircon-like structured and crystallizes in the tetragonal I4_1/acd space group. The structure is three-dimensional. there are two inequivalent Np3+ sites. In the first Np3+ site, Np3+ is bonded in a distorted body-centered cubic geometry to eight S2- atoms. There are four shorter (2.93 Å) and four longer (2.95 Å) Np–S bond lengths. In the second Np3+ site, Np3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are four shorter (2.88 Å) and four longer (3.01 Å) Np–S bond lengths. P5+ is bonded in a tetrahedral geometry to four S2- atoms. There are two shorter (2.05 Å) and two longer (2.06 Å) P–S bond lengths. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 3-coordinate geometry to two Np3+ and one P5+ atom. In the second S2- site, S2- is bonded in a 3-coordinate geometry to two Np3+ and one P5+ atom.

36 MATERIALS SCIENCE↗