Yb2FeC4 crystallizes in the orthorhombic Ibam space group. Yb(1) is bonded in a 7-coordinate geometry to four equivalent C(2) and five equivalent C(1) atoms. Fe(1) is bonded in a 4-coordinate geometry to four equivalent C(2) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded to five equivalent Yb(1) and one C(2) atom to form a mixture of distorted corner and edge-sharing CYb5C octahedra. The corner-sharing octahedral tilt angles range from 8-58°. In the second C site, C(2) is bonded in a 7-coordinate geometry to four equivalent Yb(1), two equivalent Fe(1), and one C(1) atom.
Yb2FeC4 crystallizes in the orthorhombic Ibam space group. Yb(1) is bonded in a 7-coordinate geometry to four equivalent C(2) and five equivalent C(1) atoms. There are a spread of Yb(1)-C(2) bond distances ranging from 2.59-2.86 Å. There are a spread of Yb(1)-C(1) bond distances ranging from 2.50-2.76 Å. Fe(1) is bonded in a 4-coordinate geometry to four equivalent C(2) atoms. All Fe(1)-C(2) bond lengths are 1.95 Å. There are two inequivalent C sites. In the first C site, C(1) is bonded to five equivalent Yb(1) and one C(2) atom to form a mixture of distorted corner and edge-sharing CYb5C octahedra. The corner-sharing octahedral tilt angles range from 8-58°. The C(1)-C(2) bond length is 1.31 Å. In the second C site, C(2) is bonded in a 7-coordinate geometry to four equivalent Yb(1), two equivalent Fe(1), and one C(1) atom.