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DOE OSTI2020

Materials Data on Mo(NO2)2 by Materials Project

MoO4N2 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of four ammonia molecules and two MoNO4 ribbons oriented in the (1, 0, 0) direction. In each MoNO4 ribbon, Mo6+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Mo–O bond distances ranging from 1.73–2.14 Å. N1+ is bonded in a water-like geometry to two O2- atoms. There is one shorter (1.26 Å) and one longer (1.31 Å) N–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Mo6+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Mo6+ and one N1+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one Mo6+ atom. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one Mo6+ and one N1+ atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on MoH8(NO2)2 by Materials Project

Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on MoH8(NO2)2 by Materials Project

(NH4)2MoO4 is Iron carbide-derived structured and crystallizes in the monoclinic C2/m space group. The structure is zero-dimensional and consists of four ammonium molecules and four MoNH4O4 clusters. In each MoNH4O4 cluster, Mo6+ is bonded in a tetrahedral geometry to four O2- atoms. All Mo–O bond lengths are 1.80 Å. N3- is bonded in a tetrahedral geometry to four H1+ atoms. There is three shorter (1.04 Å) and one longer (1.06 Å) N–H bond length. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- and one O2- atom. The H–O bond length is 1.70 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one Mo6+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one Mo6+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Mo6+ and one H1+ atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on MoH8(NO2)2 by Materials Project

(NH4)2MoO4 is Iron carbide-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four ammonium molecules and four MoNH4O4 clusters. In each MoNH4O4 cluster, Mo6+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Mo–O bond distances ranging from 1.79–1.81 Å. N3- is bonded in a tetrahedral geometry to four H1+ atoms. There are a spread of N–H bond distances ranging from 1.03–1.06 Å. There are four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- and one O2- atom. The H–O bond length is 1.70 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Mo6+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one Mo6+ atom. In the third O2- site, O2- is bonded in a distorted water-like geometry to one Mo6+ and one H1+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one Mo6+ atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on ZnMo(NO2)4 by Materials Project

ZnMoO8(N2)2 crystallizes in the tetragonal I-4 space group. The structure is zero-dimensional and consists of eight ammonia molecules, two MoO8 clusters, and two zinc dust molecules. In each MoO8 cluster, Mo6+ is bonded in a distorted hexagonal bipyramidal geometry to eight O2- atoms. There are four shorter (1.99 Å) and four longer (2.02 Å) Mo–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to one Mo6+ and one O2- atom. The O–O bond length is 1.42 Å. In the second O2- site, O2- is bonded in a 1-coordinate geometry to one Mo6+ and one O2- atom.

36 MATERIALS SCIENCE↗