Eu(BO2)2 crystallizes in the orthorhombic Pbcn space group. Eu(1) is bonded to two equivalent O(2) and six equivalent O(1) atoms to form distorted edge-sharing EuO8 hexagonal bipyramids. B(1) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Eu(1) and two equivalent B(1) atoms. In the second O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Eu(1) and one B(1) atom.
Eu(BO2)2 crystallizes in the orthorhombic Pbcn space group. Eu(1) is bonded to two equivalent O(2) and six equivalent O(1) atoms to form distorted edge-sharing EuO8 hexagonal bipyramids. Both Eu(1)-O(2) bond lengths are 2.68 Å. There are a spread of Eu(1)-O(1) bond distances ranging from 2.50-2.75 Å. B(1) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(2) atoms. The B(1)-O(1) bond length is 1.33 Å. There is one shorter (1.39 Å) and one longer (1.41 Å) B(1)-O(2) bond length. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Eu(1) and two equivalent B(1) atoms. In the second O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Eu(1) and one B(1) atom.