Materials Data on SmMnSbO by Materials Project

Abstract

SmMnSbO is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Sm3+ is bonded in a 4-coordinate geometry to four equivalent Sb3- and four equivalent O2- atoms. All Sm–Sb bond lengths are 3.53 Å. All Sm–O bond lengths are 2.36 Å. Mn2+ is bonded to four equivalent Sb3- atoms to form a mixture of edge and corner-sharing MnSb4 tetrahedra. All Mn–Sb bond lengths are 2.82 Å. Sb3- is bonded in a 8-coordinate geometry to four equivalent Sm3+ and four equivalent Mn2+ atoms. O2- is bonded to four equivalent Sm3+ atoms to form a mixture of distorted edge and corner-sharing OSm4 tetrahedra.