Fe3Sn2 crystallizes in the trigonal R-3m space group. Fe(1) is bonded in a 11-coordinate geometry to six equivalent Fe(1), two equivalent Sn(2), and three equivalent Sn(1) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted q6 geometry to nine equivalent Fe(1) atoms. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to six equivalent Fe(1) atoms.
Fe3Sn2 crystallizes in the trigonal R-3m space group. Fe(1) is bonded in a 11-coordinate geometry to six equivalent Fe(1), two equivalent Sn(2), and three equivalent Sn(1) atoms. There are a spread of Fe(1)-Fe(1) bond distances ranging from 2.55-2.78 Å. There is one shorter (2.73 Å) and one longer (2.76 Å) Fe(1)-Sn(2) bond length. There are two shorter (2.67 Å) and one longer (2.81 Å) Fe(1)-Sn(1) bond length. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted q6 geometry to nine equivalent Fe(1) atoms. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to six equivalent Fe(1) atoms.