LaFeAsO is Parent of FeAs superconductors structured and crystallizes in the orthorhombic Ibca space group. La(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 corner and edge-sharing FeAs4 tetrahedra. As(1) is bonded in a 8-coordinate geometry to four equivalent La(1) and four equivalent Fe(1) atoms. O(1) is bonded to four equivalent La(1) atoms to form a mixture of corner and edge-sharing OLa4 tetrahedra.
LaFeAsO is Parent of FeAs superconductors structured and crystallizes in the orthorhombic Ibca space group. La(1) is bonded in a 4-coordinate geometry to four equivalent As(1) and four equivalent O(1) atoms. There are two shorter (3.43 Å) and two longer (3.46 Å) La(1)-As(1) bond lengths. All La(1)-O(1) bond lengths are 2.39 Å. Fe(1) is bonded to four equivalent As(1) atoms to form a mixture of distorted corner and edge-sharing FeAs4 tetrahedra. There are two shorter (2.55 Å) and two longer (2.64 Å) Fe(1)-As(1) bond lengths. As(1) is bonded in a 8-coordinate geometry to four equivalent La(1) and four equivalent Fe(1) atoms. O(1) is bonded to four equivalent La(1) atoms to form a mixture of corner and edge-sharing OLa4 tetrahedra.