Eu3La(NiO3)4 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic Pm space group. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), two equivalent O(5), two equivalent O(6), and two equivalent O(7) atoms. In the second Eu site, Eu(2) is bonded in a 8-coordinate geometry to one O(3), one O(4), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms. In the third Eu site, Eu(3) is bonded in a 8-coordinate geometry to one O(3), one O(4), two equivalent O(5), two equivalent O(7), and two equivalent O(8) atoms. La(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), two equivalent O(5), two equivalent O(6), and two equivalent O(8) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(2), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles range from 23-27°. In the second Ni site, Ni(2) is bonded to one O(1), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles range from 24-27°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Eu(1), one La(1), and two equivalent Ni(2) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Eu(1), one La(1), and two equivalent Ni(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Eu(2), one Eu(3), and two equivalent Ni(2) atoms. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Eu(2), one Eu(3), and two equivalent Ni(1) atoms. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Eu(1), one Eu(3), one La(1), one Ni(1), and one Ni(2) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Eu(1), one Eu(2), one La(1), one Ni(1), and one Ni(2) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Eu(1), one Eu(2), one Eu(3), one Ni(1), and one Ni(2) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Eu(2), one Eu(3), one La(1), one Ni(1), and one Ni(2) atom.
Eu3La(NiO3)4 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic Pm space group. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), two equivalent O(5), two equivalent O(6), and two equivalent O(7) atoms. The Eu(1)-O(1) bond length is 2.34 Å. The Eu(1)-O(2) bond length is 2.43 Å. Both Eu(1)-O(5) bond lengths are 2.36 Å. Both Eu(1)-O(6) bond lengths are 2.58 Å. Both Eu(1)-O(7) bond lengths are 2.69 Å. In the second Eu site, Eu(2) is bonded in a 8-coordinate geometry to one O(3), one O(4), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms. The Eu(2)-O(3) bond length is 2.44 Å. The Eu(2)-O(4) bond length is 2.34 Å. Both Eu(2)-O(6) bond lengths are 2.68 Å. Both Eu(2)-O(7) bond lengths are 2.57 Å. Both Eu(2)-O(8) bond lengths are 2.37 Å. In the third Eu site, Eu(3) is bonded in a 8-coordinate geometry to one O(3), one O(4), two equivalent O(5), two equivalent O(7), and two equivalent O(8) atoms. The Eu(3)-O(3) bond length is 2.35 Å. The Eu(3)-O(4) bond length is 2.44 Å. Both Eu(3)-O(5) bond lengths are 2.67 Å. Both Eu(3)-O(7) bond lengths are 2.37 Å. Both Eu(3)-O(8) bond lengths are 2.57 Å. La(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), two equivalent O(5), two equivalent O(6), and two equivalent O(8) atoms. The La(1)-O(1) bond length is 2.52 Å. The La(1)-O(2) bond length is 2.40 Å. Both La(1)-O(5) bond lengths are 2.61 Å. Both La(1)-O(6) bond lengths are 2.41 Å. Both La(1)-O(8) bond lengths are 2.71 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(2), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles range from 23-27°. The Ni(1)-O(2) bond length is 1.96 Å. The Ni(1)-O(4) bond length is 1.95 Å. The Ni(1)-O(5) bond length is 2.00 Å. The Ni(1)-O(6) bond length is 1.97 Å. The Ni(1)-O(7) bond length is 1.99 Å. The Ni(1)-O(8) bond length is 1.97 Å. In the second Ni site, Ni(2) is bonded to one O(1), one O(3), one O(5), one O(6), one O(7), and one O(8) atom to form corner-sharing NiO6 octahedra. The corner-sharing octahedral tilt angles range from 24-27°. The Ni(2)-O(1) bond length is 1.97 Å. The Ni(2)-O(3) bond length is 1.96 Å. The Ni(2)-O(5) bond length is 1.98 Å. The Ni(2)-O(6) bond length is 1.97 Å. The Ni(2)-O(7) bond length is 1.98 Å. The Ni(2)-O(8) bond length is 1.97 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Eu(1), one La(1), and two equivalent Ni(2) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Eu(1), one La(1), and two equivalent Ni(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Eu(2), one Eu(3), and two equivalent Ni(2) atoms. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Eu(2), one Eu(3), and two equivalent Ni(1) atoms. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Eu(1), one Eu(3), one La(1), one Ni(1), and one Ni(2) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Eu(1), one Eu(2), one La(1), one Ni(1), and one Ni(2) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Eu(1), one Eu(2), one Eu(3), one Ni(1), and one Ni(2) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Eu(2), one Eu(3), one La(1), one Ni(1), and one Ni(2) atom.