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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on GeN2F5 by Materials Project

N2(GeNF5)2 crystallizes in the tetragonal P4/n space group. The structure is two-dimensional and consists of two ammonia molecules and two GeNF5 sheets oriented in the (0, 0, 1) direction. In each GeNF5 sheet, Ge3+ is bonded in a distorted trigonal bipyramidal geometry to five F1- atoms. There is one shorter (1.74 Å) and four longer (1.80 Å) Ge–F bond length. N1+ is bonded in a rectangular see-saw-like geometry to four equivalent F1- atoms. All N–F bond lengths are 2.21 Å. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Ge3+ and one N1+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one Ge3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ge(NF3)2 by Materials Project

N2GeF6 is Calaverite structured and crystallizes in the monoclinic C2/m space group. The structure is zero-dimensional and consists of four ammonia molecules and two GeF6 clusters. In each GeF6 cluster, Ge4+ is bonded in an octahedral geometry to six F1- atoms. All Ge–F bond lengths are 1.83 Å. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Ge4+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one Ge4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ge(NF3)2 by Materials Project

N2GeF6 crystallizes in the orthorhombic Cmc2_1 space group. The structure is zero-dimensional and consists of eight ammonia molecules and four GeF6 clusters. In each GeF6 cluster, Ge4+ is bonded in an octahedral geometry to six F1- atoms. There are a spread of Ge–F bond distances ranging from 1.81–1.84 Å. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Ge4+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one Ge4+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one Ge4+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one Ge4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ge(NF3)2 by Materials Project

N2GeF6 is Fluorite structured and crystallizes in the cubic Fm-3m space group. The structure is zero-dimensional and consists of eight ammonia molecules and four GeF6 clusters. In each GeF6 cluster, Ge4+ is bonded in an octahedral geometry to six equivalent F1- atoms. All Ge–F bond lengths are 1.83 Å. F1- is bonded in a single-bond geometry to one Ge4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on GeN3F7 by Materials Project

N2Ge(NF4)2GeF4(NF)2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four ammonia molecules, four monofluoroamine molecules, two tetrafluorogermane molecules, and two Ge(NF4)2 clusters. In each Ge(NF4)2 cluster, Ge4+ is bonded in a distorted octahedral geometry to six F1- atoms. There are four shorter (1.75 Å) and two longer (2.44 Å) Ge–F bond lengths. N1+ is bonded in a water-like geometry to two F1- atoms. There is one shorter (1.34 Å) and one longer (1.45 Å) N–F bond length. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Ge4+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one N1+ atom. In the third F1- site, F1- is bonded in a 2-coordinate geometry to one Ge4+ and one N1+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one Ge4+ atom.

36 MATERIALS SCIENCE↗