BeH2 crystallizes in the orthorhombic Ibam space group. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded to four equivalent H(1) atoms to form corner-sharing BeH4 tetrahedra. In the second Be site, Be(2) is bonded to two equivalent H(1) and two equivalent H(2) atoms to form corner-sharing BeH4 tetrahedra. There are two inequivalent H sites. In the first H site, H(2) is bonded in a bent 120 degrees geometry to two equivalent Be(2) atoms. In the second H site, H(1) is bonded in a bent 120 degrees geometry to one Be(1) and one Be(2) atom.
BeH2 crystallizes in the orthorhombic Ibam space group. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded to four equivalent H(1) atoms to form corner-sharing BeH4 tetrahedra. All Be(1)-H(1) bond lengths are 1.43 Å. In the second Be site, Be(2) is bonded to two equivalent H(1) and two equivalent H(2) atoms to form corner-sharing BeH4 tetrahedra. Both Be(2)-H(1) bond lengths are 1.43 Å. Both Be(2)-H(2) bond lengths are 1.43 Å. There are two inequivalent H sites. In the first H site, H(2) is bonded in a bent 120 degrees geometry to two equivalent Be(2) atoms. In the second H site, H(1) is bonded in a bent 120 degrees geometry to one Be(1) and one Be(2) atom.