TbOFeAs is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. Tb(1) is bonded in a 4-coordinate geometry to four equivalent As(1) and four equivalent O(1) atoms. Fe(1) is bonded to four equivalent As(1) atoms to form a mixture of distorted edge and corner-sharing FeAs4 tetrahedra. As(1) is bonded in a 8-coordinate geometry to four equivalent Tb(1) and four equivalent Fe(1) atoms. O(1) is bonded to four equivalent Tb(1) atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra.
TbOFeAs is Parent of FeAs superconductors structured and crystallizes in the tetragonal P4/nmm space group. Tb(1) is bonded in a 4-coordinate geometry to four equivalent As(1) and four equivalent O(1) atoms. All Tb(1)-As(1) bond lengths are 3.31 Å. All Tb(1)-O(1) bond lengths are 2.27 Å. Fe(1) is bonded to four equivalent As(1) atoms to form a mixture of distorted edge and corner-sharing FeAs4 tetrahedra. All Fe(1)-As(1) bond lengths are 2.61 Å. As(1) is bonded in a 8-coordinate geometry to four equivalent Tb(1) and four equivalent Fe(1) atoms. O(1) is bonded to four equivalent Tb(1) atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra.