SEARCH · Search NASA
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
ZrBr3 crystallizes in the hexagonal P6_3/mcm space group. The structure is one-dimensional and consists of one ZrBr3 ribbon oriented in the (0, 0, 1) direction. Zr3+ is bonded to six equivalent Br1- atoms to form face-sharing ZrBr6 octahedra. All Zr–Br bond lengths are 2.72 Å. Br1- is bonded in a 2-coordinate geometry to two equivalent Zr3+ atoms.
ZrBr2 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Zr2+ is bonded to five Br1- atoms to form a mixture of distorted edge and corner-sharing ZrBr5 square pyramids. There are a spread of Zr–Br bond distances ranging from 2.67–3.20 Å. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 3-coordinate geometry to three equivalent Zr2+ atoms. In the second Br1- site, Br1- is bonded in a 2-coordinate geometry to two equivalent Zr2+ atoms.
ZrBr crystallizes in the trigonal R-3m space group. The structure is two-dimensional and consists of six ZrBr sheets oriented in the (0, 0, 1) direction. Zr is bonded in a 3-coordinate geometry to three equivalent Br atoms. All Zr–Br bond lengths are 2.79 Å. Br is bonded in a 3-coordinate geometry to three equivalent Zr atoms.