Materials Data on Na2AsAu by Materials Project
Na2AuAs crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Na1+ is bonded in a 2-coordinate geometry to four equivalent Au1+ and four equivalent As3- atoms. There are two shorter (3.30 Å) and two longer (3.38 Å) Na–Au bond lengths. There are a spread of Na–As bond distances ranging from 3.02–3.36 Å. Au1+ is bonded in a 12-coordinate geometry to eight equivalent Na1+, two equivalent Au1+, and two equivalent As3- atoms. Both Au–Au bond lengths are 2.92 Å. Both Au–As bond lengths are 2.54 Å. As3- is bonded in a 10-coordinate geometry to eight equivalent Na1+ and two equivalent Au1+ atoms.
36 MATERIALS SCIENCE↗