Fe2O3 crystallizes in the monoclinic C2/c space group. Fe(1) is bonded in a 5-coordinate geometry to one O(2) and four equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Fe(1) atoms to form a mixture of distorted corner and edge-sharing OFe4 trigonal pyramids. In the second O site, O(2) is bonded in a linear geometry to two equivalent Fe(1) atoms.
Fe2O3 crystallizes in the monoclinic C2/c space group. Fe(1) is bonded in a 5-coordinate geometry to one O(2) and four equivalent O(1) atoms. The Fe(1)-O(2) bond length is 1.82 Å. There are a spread of Fe(1)-O(1) bond distances ranging from 2.03-2.06 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Fe(1) atoms to form a mixture of distorted corner and edge-sharing OFe4 trigonal pyramids. In the second O site, O(2) is bonded in a linear geometry to two equivalent Fe(1) atoms.