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At least 1,153 records · Page 64
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DOE OSTI2020

Materials Data on XeNO3F by Materials Project

XeNO3F crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four XeNO3F clusters. Xe is bonded in a linear geometry to one O and one F atom. The Xe–O bond length is 2.23 Å. The Xe–F bond length is 2.11 Å. N is bonded in a trigonal planar geometry to three O atoms. There are a spread of N–O bond distances ranging from 1.22–1.39 Å. There are three inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one N atom. In the second O site, O is bonded in a single-bond geometry to one N atom. In the third O site, O is bonded in a bent 120 degrees geometry to one Xe and one N atom. F is bonded in a single-bond geometry to one Xe atom.

36 MATERIALS SCIENCE↗
DOE OSTI2025

LeaPP: Learning Pathways to Polymorphs through Machine Learning Analysis of Atomic Trajectories

Understanding the mechanisms underlying crystal nucleation and growth is crucial for many technological applications. Due to the short length and time scales involved, crystal nucleation is often studied using molecular simulations. Most existing approaches to extract the nucleation mechanism from simulations focus on the analysis of static snapshots of the configurations, potentially overlooking subtle local fluctuations and the history of the particles involved in the formation of solid nuclei. Here, in this work, we propose a novel methodology called LeaPP that categorizes nucleation trajectories based on the temporal information of their constituent particles. We leverage the time evolution of the local environment of the crystallizing particles to encapsulate the relationship between the structure and dynamics and distinguish between different evolving particle paths. Identification of the distinct particle paths further enables characterizing the nucleation trajectories into different pathways. Collectively, LeaPP provides a more nuanced understanding of nucleation through an unsupervised approach with lesser dependence on traditional order parameters. Furthermore, the pathways identified by LeaPP are predictive of the resulting polymorph. We demonstrate LeaPP on three different systems─Lennard-Jones-like particles, Ni 3 Al, and water on surfaces. The general methodology underlying LeaPP─considering the time evolution of the building blocks─applies to a wide range of self-assembly problems.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on WCl5 by Materials Project

WCl5 crystallizes in the monoclinic C2/m space group. The structure is zero-dimensional and consists of six WCl5 clusters. In two of the WCl5 clusters, W5+ is bonded to six Cl1- atoms to form edge-sharing WCl6 octahedra. There are four shorter (2.28 Å) and two longer (2.54 Å) W–Cl bond lengths. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one W5+ atom. The Cl–W bond length is 2.28 Å. In the second Cl1- site, Cl1- is bonded in a water-like geometry to two equivalent W5+ atoms. Both Cl–W bond lengths are 2.54 Å. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one W5+ atom. The Cl–W bond length is 2.28 Å. In four of the WCl5 clusters, W5+ is bonded to six Cl1- atoms to form edge-sharing WCl6 octahedra. There are six inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one W5+ atom. In the second Cl1- site, Cl1- is bonded in a water-like geometry to two equivalent W5+ atoms. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one W5+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one W5+ atom. In the fifth Cl1- site, Cl1- is bonded in a water-like geometry to two equivalent W5+ atoms. In the sixth Cl1- site, Cl1- is bonded in a single-bond geometry to one W5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ReCl4O by Materials Project

ReOCl4 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of eight ReOCl4 clusters. Re6+ is bonded in a 5-coordinate geometry to one O2- and four Cl1- atoms. The Re–O bond length is 1.69 Å. There are two shorter (2.28 Å) and two longer (2.29 Å) Re–Cl bond lengths. O2- is bonded in a single-bond geometry to one Re6+ atom. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Re6+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Re6+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Re6+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one Re6+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on OsCl4O by Materials Project

OsOCl4 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four OsOCl4 clusters. Os6+ is bonded in a 1-coordinate geometry to one O2- and four Cl1- atoms. The Os–O bond length is 1.68 Å. There are three shorter (2.27 Å) and one longer (2.28 Å) Os–Cl bond lengths. O2- is bonded in a single-bond geometry to one Os6+ atom. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Os6+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Os6+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Os6+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one Os6+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AlS2NCl6 by Materials Project

AlCl4NS2Cl2 crystallizes in the monoclinic P2_1/m space group. The structure is zero-dimensional and consists of four AlCl4 clusters and four NS2Cl2 clusters. In each AlCl4 cluster, Al3+ is bonded in a tetrahedral geometry to four Cl1- atoms. There are a spread of Al–Cl bond distances ranging from 2.15–2.18 Å. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Al3+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Al3+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Al3+ atom. In each NS2Cl2 cluster, N1- is bonded in a bent 150 degrees geometry to two S2+ atoms. Both N–S bond lengths are 1.54 Å. There are two inequivalent S2+ sites. In the first S2+ site, S2+ is bonded in a water-like geometry to one N1- and one Cl1- atom. The S–Cl bond length is 2.03 Å. In the second S2+ site, S2+ is bonded in a water-like geometry to one N1- and one Cl1- atom. The S–Cl bond length is 2.02 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one S2+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one S2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on WSBr4 by Materials Project

WSBr4 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four WSBr4 clusters. W6+ is bonded in a distorted trigonal bipyramidal geometry to one S2- and four Br1- atoms. The W–S bond length is 2.10 Å. There are a spread of W–Br bond distances ranging from 2.46–2.49 Å. S2- is bonded in a single-bond geometry to one W6+ atom. There are four inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a single-bond geometry to one W6+ atom. In the second Br1- site, Br1- is bonded in a single-bond geometry to one W6+ atom. In the third Br1- site, Br1- is bonded in a single-bond geometry to one W6+ atom. In the fourth Br1- site, Br1- is bonded in a single-bond geometry to one W6+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AsXe2F9 by Materials Project

Xe2F3AsF6 is alpha iridium vanadium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of six AsF6 clusters and six Xe2F3 clusters. In each AsF6 cluster, As is bonded in an octahedral geometry to six F atoms. There are a spread of As–F bond distances ranging from 1.77–1.79 Å. There are six inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one As atom. In the second F site, F is bonded in a single-bond geometry to one As atom. In the third F site, F is bonded in a single-bond geometry to one As atom. In the fourth F site, F is bonded in a single-bond geometry to one As atom. In the fifth F site, F is bonded in a single-bond geometry to one As atom. In the sixth F site, F is bonded in a single-bond geometry to one As atom. The F–As bond length is 1.78 Å. In two of the Xe2F3 clusters, there are two inequivalent Xe sites. In the first Xe site, Xe is bonded in a linear geometry to two F atoms. There are one shorter (2.01 Å) and one longer (2.22 Å) Xe–F bond lengths. In the second Xe site, Xe is bonded in a linear geometry to two F atoms. There are one shorter (2.01 Å) and one longer (2.22 Å) Xe–F bond lengths. There are three inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one Xe atom. In the second F site, F is bonded in a bent 150 degrees geometry to two Xe atoms. In the third F site, F is bonded in a single-bond geometry to one Xe atom. In four of the Xe2F3 clusters, there are two inequivalent Xe sites. In the first Xe site, Xe is bonded in a linear geometry to two F atoms. There are one shorter (2.01 Å) and one longer (2.22 Å) Xe–F bond lengths. In the second Xe site, Xe is bonded in a linear geometry to two F atoms. There are one shorter (2.01 Å) and one longer (2.23 Å) Xe–F bond lengths. There are three inequivalent F sites. In the first F site, F is bonded in a bent 150 degrees geometry to two Xe atoms. In the second F site, F is bonded in a single-bond geometry to one Xe atom. In the third F site, F is bonded in a single-bond geometry to one Xe atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeN2Cl5 by Materials Project

CeCl4N2Cl crystallizes in the orthorhombic Pnma space group. The structure is one-dimensional and consists of four N2Cl clusters and two CeCl4 ribbons oriented in the (1, 0, 0) direction. In each N2Cl cluster, N1+ is bonded in a single-bond geometry to one Cl1- atom. The N–Cl bond length is 1.53 Å. Cl1- is bonded in a bent 120 degrees geometry to two equivalent N1+ atoms. In each CeCl4 ribbon, Ce3+ is bonded to six Cl1- atoms to form edge-sharing CeCl6 octahedra. There are a spread of Ce–Cl bond distances ranging from 2.51–2.76 Å. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a water-like geometry to two equivalent Ce3+ atoms. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Ce3+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Ce3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AsXe2F9 by Materials Project

Xe2F3AsF6 is alpha iridium vanadium-like structured and crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of twelve AsF6 clusters and twelve Xe2F3 clusters. In each AsF6 cluster, As is bonded in an octahedral geometry to six F atoms. There is one shorter (1.77 Å) and five longer (1.78 Å) As–F bond length. There are five inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one As atom. In the second F site, F is bonded in a single-bond geometry to one As atom. In the third F site, F is bonded in a single-bond geometry to one As atom. In the fourth F site, F is bonded in a single-bond geometry to one As atom. In the fifth F site, F is bonded in a single-bond geometry to one As atom. In four of the Xe2F3 clusters, Xe is bonded in a linear geometry to two F atoms. There are one shorter (2.00 Å) and one longer (2.22 Å) Xe–F bond lengths. There are two inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one Xe atom. In the second F site, F is bonded in a bent 150 degrees geometry to two equivalent Xe atoms. In eight of the Xe2F3 clusters, there are two inequivalent Xe sites. In the first Xe site, Xe is bonded in a linear geometry to two F atoms. There are one shorter (2.00 Å) and one longer (2.21 Å) Xe–F bond lengths. In the second Xe site, Xe is bonded in a linear geometry to two F atoms. There are one shorter (2.00 Å) and one longer (2.22 Å) Xe–F bond lengths. There are three inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one Xe atom. In the second F site, F is bonded in a single-bond geometry to one Xe atom. In the third F site, F is bonded in a bent 150 degrees geometry to two Xe atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PAuCl4 by Materials Project

Cl3PAuCl crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four Cl3PAuCl clusters. Au1- is bonded in a linear geometry to one P5+ and one Cl1- atom. The Au–P bond length is 2.24 Å. The Au–Cl bond length is 2.30 Å. P5+ is bonded in a tetrahedral geometry to one Au1- and three Cl1- atoms. All P–Cl bond lengths are 2.02 Å. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Au1- atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on WSCl4 by Materials Project

WSCl4 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two WSCl4 clusters. W6+ is bonded in a distorted trigonal bipyramidal geometry to one S2- and four Cl1- atoms. The W–S bond length is 2.10 Å. There are three shorter (2.30 Å) and one longer (2.31 Å) W–Cl bond lengths. S2- is bonded in a single-bond geometry to one W6+ atom. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on WSCl4 by Materials Project

WSCl4 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of eight WSCl4 clusters. W6+ is bonded in a distorted trigonal bipyramidal geometry to one S2- and four Cl1- atoms. The W–S bond length is 2.10 Å. There are two shorter (2.30 Å) and two longer (2.31 Å) W–Cl bond lengths. S2- is bonded in a single-bond geometry to one W6+ atom. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on WSCl4 by Materials Project

WSCl4 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two WSCl4 clusters. W6+ is bonded in a distorted trigonal bipyramidal geometry to one S2- and four Cl1- atoms. The W–S bond length is 2.10 Å. There are a spread of W–Cl bond distances ranging from 2.30–2.32 Å. S2- is bonded in a distorted single-bond geometry to one W6+ atom. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HgNO4 by Materials Project

HgNO4 is beta Sn-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of two HgNO4 clusters. Hg is bonded in a 3-coordinate geometry to three O atoms. There are a spread of Hg–O bond distances ranging from 2.01–2.46 Å. N is bonded in a trigonal planar geometry to three O atoms. There are a spread of N–O bond distances ranging from 1.23–1.36 Å. There are four inequivalent O sites. In the first O site, O is bonded in a water-like geometry to two equivalent Hg atoms. In the second O site, O is bonded in a single-bond geometry to one N atom. In the third O site, O is bonded in a single-bond geometry to one N atom. In the fourth O site, O is bonded in a water-like geometry to one Hg and one N atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SeN by Materials Project

NSe is red selenium-derived structured and crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four NSe clusters. there are three inequivalent N1+ sites. In the first N1+ site, N1+ is bonded in a bent 120 degrees geometry to two equivalent Se1- atoms. Both N–Se bond lengths are 1.80 Å. In the second N1+ site, N1+ is bonded in a bent 120 degrees geometry to two Se1- atoms. There is one shorter (1.80 Å) and one longer (1.81 Å) N–Se bond length. In the third N1+ site, N1+ is bonded in a bent 120 degrees geometry to two equivalent Se1- atoms. Both N–Se bond lengths are 1.81 Å. There are two inequivalent Se1- sites. In the first Se1- site, Se1- is bonded in a water-like geometry to two N1+ atoms. In the second Se1- site, Se1- is bonded in a water-like geometry to two N1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on WSCl4 by Materials Project

WSCl4 is alpha-like structured and crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two WSCl4 clusters. W6+ is bonded in a distorted trigonal bipyramidal geometry to one S2- and four Cl1- atoms. The W–S bond length is 2.10 Å. There are three shorter (2.30 Å) and one longer (2.31 Å) W–Cl bond lengths. S2- is bonded in a distorted single-bond geometry to one W6+ atom. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one W6+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BH6N by Materials Project

NH3BH3 is Silicon tetrafluoride-derived structured and crystallizes in the orthorhombic Pnma space group. The structure is zero-dimensional and consists of four NH3BH3 clusters. B3- is bonded in a tetrahedral geometry to one N3- and three H1+ atoms. The B–N bond length is 1.60 Å. All B–H bond lengths are 1.22 Å. N3- is bonded in a tetrahedral geometry to one B3- and three H1+ atoms. All N–H bond lengths are 1.03 Å. There are four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one B3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one B3- atom. 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.

36 MATERIALS SCIENCE↗