Ce2MnN3F is (La,Ba)CuO4-derived structured and crystallizes in the tetragonal I4mm space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 9-coordinate geometry to one N(2), four equivalent N(1), and four equivalent F(1) atoms. In the second Ce site, Ce(2) is bonded in a 9-coordinate geometry to four equivalent N(1), four equivalent N(2), and one F(1) atom. Mn(1) is bonded to one N(2), four equivalent N(1), and one F(1) atom to form distorted corner-sharing MnN5F octahedra. The corner-sharing octahedral tilt angles are 19°. There are two inequivalent N sites. In the first N site, N(1) is bonded to two equivalent Ce(1), two equivalent Ce(2), and two equivalent Mn(1) atoms to form a mixture of distorted edge, face, and corner-sharing NCe4Mn2 octahedra. The corner-sharing octahedral tilt angles are 19°. In the second N site, N(2) is bonded in a distorted linear geometry to one Ce(1), four equivalent Ce(2), and one Mn(1) atom. F(1) is bonded in a 6-coordinate geometry to one Ce(2), four equivalent Ce(1), and one Mn(1) atom.
Ce2MnN3F is (La,Ba)CuO4-derived structured and crystallizes in the tetragonal I4mm space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 9-coordinate geometry to one N(2), four equivalent N(1), and four equivalent F(1) atoms. The Ce(1)-N(2) bond length is 2.29 Å. All Ce(1)-N(1) bond lengths are 2.48 Å. All Ce(1)-F(1) bond lengths are 2.83 Å. In the second Ce site, Ce(2) is bonded in a 9-coordinate geometry to four equivalent N(1), four equivalent N(2), and one F(1) atom. All Ce(2)-N(1) bond lengths are 2.63 Å. All Ce(2)-N(2) bond lengths are 2.84 Å. The Ce(2)-F(1) bond length is 2.32 Å. Mn(1) is bonded to one N(2), four equivalent N(1), and one F(1) atom to form distorted corner-sharing MnN5F octahedra. The corner-sharing octahedral tilt angles are 19°. The Mn(1)-N(2) bond length is 2.13 Å. All Mn(1)-N(1) bond lengths are 1.97 Å. The Mn(1)-F(1) bond length is 2.52 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded to two equivalent Ce(1), two equivalent Ce(2), and two equivalent Mn(1) atoms to form a mixture of distorted edge, face, and corner-sharing NCe4Mn2 octahedra. The corner-sharing octahedral tilt angles are 19°. In the second N site, N(2) is bonded in a distorted linear geometry to one Ce(1), four equivalent Ce(2), and one Mn(1) atom. F(1) is bonded in a 6-coordinate geometry to one Ce(2), four equivalent Ce(1), and one Mn(1) atom.