Eu(BC)2 crystallizes in the tetragonal P4_2/mmc space group. Eu(1) is bonded in a 16-coordinate geometry to eight equivalent B(1) and eight equivalent C(1) atoms. B(1) is bonded in a 2-coordinate geometry to four equivalent Eu(1) and two equivalent C(1) atoms. C(1) is bonded in a 3-coordinate geometry to four equivalent Eu(1), two equivalent B(1), and one C(1) atom.
Eu(BC)2 crystallizes in the tetragonal P4_2/mmc space group. Eu(1) is bonded in a 16-coordinate geometry to eight equivalent B(1) and eight equivalent C(1) atoms. All Eu(1)-B(1) bond lengths are 2.86 Å. All Eu(1)-C(1) bond lengths are 2.82 Å. B(1) is bonded in a 2-coordinate geometry to four equivalent Eu(1) and two equivalent C(1) atoms. Both B(1)-C(1) bond lengths are 1.61 Å. C(1) is bonded in a 3-coordinate geometry to four equivalent Eu(1), two equivalent B(1), and one C(1) atom. The C(1)-C(1) bond length is 1.41 Å.