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DOE OSTI2020

Materials Data on K(AsRh)2 by Materials Project

K(RhAs)2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. K is bonded in a body-centered cubic geometry to eight equivalent As atoms. There are a spread of K–As bond distances ranging from 3.42–3.49 Å. Rh is bonded to four equivalent As atoms to form a mixture of edge and corner-sharing RhAs4 tetrahedra. There are two shorter (2.45 Å) and two longer (2.46 Å) Rh–As bond lengths. As is bonded in a 8-coordinate geometry to four equivalent K and four equivalent Rh atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on KAs2Rh by Materials Project

KRhAs2 crystallizes in the tetragonal I-4m2 space group. The structure is three-dimensional. K1+ is bonded in a body-centered cubic geometry to eight equivalent As2- atoms. All K–As bond lengths are 3.51 Å. Rh3+ is bonded to four equivalent As2- atoms to form corner-sharing RhAs4 tetrahedra. All Rh–As bond lengths are 2.36 Å. As2- is bonded in a 2-coordinate geometry to four equivalent K1+ and two equivalent Rh3+ atoms.

36 MATERIALS SCIENCE↗