SEARCH · Engineering Papers

Results for “As-I-La”

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.

SourceResearch connectionFrom yearThrough year

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

2 records

All sources NASA NTRS DOE OSTI

DOE OSTI2020

Materials Data on La3AsI3 by Materials Project

La3AsI3 crystallizes in the cubic I4_132 space group. The structure is three-dimensional. La2+ is bonded to two equivalent As3- and four equivalent I1- atoms to form a mixture of edge and corner-sharing LaAs2I4 octahedra. The corner-sharing octahedra tilt angles range from 5–10°. Both La–As bond lengths are 2.98 Å. There are two shorter (3.30 Å) and two longer (3.38 Å) La–I bond lengths. As3- is bonded to six equivalent La2+ atoms to form edge-sharing AsLa6 octahedra. I1- is bonded in a distorted rectangular see-saw-like geometry to four equivalent La2+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on La2AsI2 by Materials Project

La2AsI2 is MAX Phase-like structured and crystallizes in the trigonal P-3m1 space group. The structure is two-dimensional and consists of one La2AsI2 sheet oriented in the (0, 0, 1) direction. La+2.50+ is bonded to three equivalent As3- and three equivalent I1- atoms to form a mixture of edge and corner-sharing LaAs3I3 octahedra. The corner-sharing octahedral tilt angles are 0°. All La–As bond lengths are 3.05 Å. All La–I bond lengths are 3.30 Å. As3- is bonded to six equivalent La+2.50+ atoms to form edge-sharing AsLa6 octahedra. I1- is bonded in a 3-coordinate geometry to three equivalent La+2.50+ atoms.

36 MATERIALS SCIENCE↗