Mn2As crystallizes in the tetragonal P4/nmm space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 5-coordinate geometry to five equivalent As(1) atoms. In the second Mn site, Mn(2) is bonded in a 4-coordinate geometry to four equivalent As(1) atoms. As(1) is bonded in a 9-coordinate geometry to four equivalent Mn(2) and five equivalent Mn(1) atoms.
Mn2As crystallizes in the tetragonal P4/nmm space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 5-coordinate geometry to five equivalent As(1) atoms. There is one shorter (2.44 Å) and four longer (2.62 Å) Mn(1)-As(1) bond lengths. In the second Mn site, Mn(2) is bonded in a 4-coordinate geometry to four equivalent As(1) atoms. All Mn(2)-As(1) bond lengths are 2.45 Å. As(1) is bonded in a 9-coordinate geometry to four equivalent Mn(2) and five equivalent Mn(1) atoms.