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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on HgH16(Br3N2)2 by Materials Project

(NH4)4HgBr6 is Silicon tetrafluoride-derived structured and crystallizes in the orthorhombic Pnnm space group. The structure is zero-dimensional and consists of eight ammonium molecules and two HgBr6 clusters. In each HgBr6 cluster, Hg2+ is bonded in a distorted octahedral geometry to six Br1- atoms. There are a spread of Hg–Br bond distances ranging from 2.58–3.29 Å. There are three inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 1-coordinate geometry to one Hg2+ atom. In the second Br1- site, Br1- is bonded in a single-bond geometry to one Hg2+ atom. In the third Br1- site, Br1- is bonded in a single-bond geometry to one Hg2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HgH16(Br3N2)2 by Materials Project

(NH4)4HgBr6 is Silicon tetrafluoride-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of eight ammonium molecules and two HgBr6 clusters. In each HgBr6 cluster, Hg2+ is bonded in a distorted octahedral geometry to six Br1- atoms. There are a spread of Hg–Br bond distances ranging from 2.58–3.24 Å. There are three inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 1-coordinate geometry to one Hg2+ atom. In the second Br1- site, Br1- is bonded in a single-bond geometry to one Hg2+ atom. In the third Br1- site, Br1- is bonded in a distorted single-bond geometry to one Hg2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HgH16(Br3N2)2 by Materials Project

(NH4)4HgBr6 is Silicon tetrafluoride-derived structured and crystallizes in the tetragonal P4/mnc space group. The structure is zero-dimensional and consists of eight ammonium molecules and two HgBr6 clusters. In each HgBr6 cluster, Hg2+ is bonded in a distorted octahedral geometry to six Br1- atoms. There are two shorter (2.55 Å) and four longer (3.24 Å) Hg–Br bond lengths. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a single-bond geometry to one Hg2+ atom. In the second Br1- site, Br1- is bonded in a 1-coordinate geometry to one Hg2+ atom.

36 MATERIALS SCIENCE↗