Na3As crystallizes in the hexagonal P6_3cm space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a trigonal planar geometry to three equivalent As(1) atoms. In the second Na site, Na(2) is bonded in a trigonal planar geometry to three equivalent As(1) atoms. In the third Na site, Na(3) is bonded in a 3-coordinate geometry to three equivalent As(1) atoms. In the fourth Na site, Na(4) is bonded in a 2-coordinate geometry to four equivalent As(1) atoms. As(1) is bonded in a 10-coordinate geometry to one Na(1), two equivalent Na(2), three equivalent Na(3), and four equivalent Na(4) atoms.
Na3As crystallizes in the hexagonal P6_3cm space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a trigonal planar geometry to three equivalent As(1) atoms. All Na(1)-As(1) bond lengths are 2.91 Å. In the second Na site, Na(2) is bonded in a trigonal planar geometry to three equivalent As(1) atoms. All Na(2)-As(1) bond lengths are 2.93 Å. In the third Na site, Na(3) is bonded in a 3-coordinate geometry to three equivalent As(1) atoms. There is one shorter (2.97 Å) and two longer (3.15 Å) Na(3)-As(1) bond lengths. In the fourth Na site, Na(4) is bonded in a 2-coordinate geometry to four equivalent As(1) atoms. There are a spread of Na(4)-As(1) bond distances ranging from 2.97-3.38 Å. As(1) is bonded in a 10-coordinate geometry to one Na(1), two equivalent Na(2), three equivalent Na(3), and four equivalent Na(4) atoms.