Eu2ZnP2 crystallizes in the orthorhombic Cmc2_1 space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to two equivalent P(1) and three equivalent P(2) atoms to form a mixture of distorted corner and edge-sharing EuP5 trigonal bipyramids. In the second Eu site, Eu(2) is bonded in a 5-coordinate geometry to one P(2) and four equivalent P(1) atoms. Zn(1) is bonded in a 4-coordinate geometry to two equivalent P(1) and two equivalent P(2) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 8-coordinate geometry to two equivalent Eu(1), four equivalent Eu(2), and two equivalent Zn(1) atoms. In the second P site, P(2) is bonded in a 6-coordinate geometry to one Eu(2), three equivalent Eu(1), and two equivalent Zn(1) atoms.
Eu2ZnP2 crystallizes in the orthorhombic Cmc2_1 space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to two equivalent P(1) and three equivalent P(2) atoms to form a mixture of distorted corner and edge-sharing EuP5 trigonal bipyramids. Both Eu(1)-P(1) bond lengths are 3.09 Å. There is one shorter (2.93 Å) and two longer (2.98 Å) Eu(1)-P(2) bond lengths. In the second Eu site, Eu(2) is bonded in a 5-coordinate geometry to one P(2) and four equivalent P(1) atoms. The Eu(2)-P(2) bond length is 2.87 Å. There are two shorter (2.96 Å) and two longer (3.02 Å) Eu(2)-P(1) bond lengths. Zn(1) is bonded in a 4-coordinate geometry to two equivalent P(1) and two equivalent P(2) atoms. There is one shorter (2.60 Å) and one longer (2.68 Å) Zn(1)-P(1) bond length. Both Zn(1)-P(2) bond lengths are 2.44 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 8-coordinate geometry to two equivalent Eu(1), four equivalent Eu(2), and two equivalent Zn(1) atoms. In the second P site, P(2) is bonded in a 6-coordinate geometry to one Eu(2), three equivalent Eu(1), and two equivalent Zn(1) atoms.