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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 TcC4IO4 by Materials Project

TcI(CO)4 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of thirty-two formaldehyde molecules and four TcI clusters. In each TcI cluster, there are two inequivalent Tc1+ sites. In the first Tc1+ site, Tc1+ is bonded in a 2-coordinate geometry to two I1- atoms. There are one shorter (2.84 Å) and one longer (2.85 Å) Tc–I bond lengths. In the second Tc1+ site, Tc1+ is bonded in a 2-coordinate geometry to two I1- atoms. There are one shorter (2.86 Å) and one longer (2.87 Å) Tc–I bond lengths. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded in a distorted L-shaped geometry to two Tc1+ atoms. In the second I1- site, I1- is bonded in a 2-coordinate geometry to two Tc1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TcC5IO5 by Materials Project

TcC5O5I is alpha U structured and crystallizes in the orthorhombic Cmcm space group. The structure is zero-dimensional and consists of four TcC5O5I clusters. Tc1- is bonded in a distorted square pyramidal geometry to five C+2.40+ and one I1- atom. There is one shorter (1.94 Å) and four longer (2.01 Å) Tc–C bond length. The Tc–I bond length is 2.86 Å. There are two inequivalent C+2.40+ sites. In the first C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Tc1- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Tc1- and one O2- atom. The C–O bond length is 1.15 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. I1- is bonded in a single-bond geometry to one Tc1- atom.

36 MATERIALS SCIENCE↗