CeAsO3 is Potassium chlorate structured and crystallizes in the monoclinic P2_1/m space group. Ce(1) is bonded in a 9-coordinate geometry to three equivalent O(1) and six equivalent O(2) atoms. As(1) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to three equivalent Ce(1) and one As(1) atom. In the second O site, O(2) is bonded to three equivalent Ce(1) and one As(1) atom to form a mixture of distorted edge and corner-sharing OCe3As tetrahedra.
CeAsO3 is Potassium chlorate structured and crystallizes in the monoclinic P2_1/m space group. Ce(1) is bonded in a 9-coordinate geometry to three equivalent O(1) and six equivalent O(2) atoms. There is one shorter (2.58 Å) and two longer (2.89 Å) Ce(1)-O(1) bond lengths. There are a spread of Ce(1)-O(2) bond distances ranging from 2.51-2.65 Å. As(1) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms. The As(1)-O(1) bond length is 1.80 Å. Both As(1)-O(2) bond lengths are 1.81 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to three equivalent Ce(1) and one As(1) atom. In the second O site, O(2) is bonded to three equivalent Ce(1) and one As(1) atom to form a mixture of distorted edge and corner-sharing OCe3As tetrahedra.