CeAsO4 crystallizes in the monoclinic P2_1/c space group. Ce(1) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and three equivalent O(2) atoms. As(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Ce(1) and one As(1) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to three equivalent Ce(1) and one As(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Ce(1) and one As(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Ce(1) and one As(1) atom.
CeAsO4 crystallizes in the monoclinic P2_1/c space group. Ce(1) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and three equivalent O(2) atoms. There is one shorter (2.45 Å) and one longer (2.60 Å) Ce(1)-O(1) bond length. There is one shorter (2.47 Å) and one longer (2.56 Å) Ce(1)-O(3) bond length. There is one shorter (2.52 Å) and one longer (2.58 Å) Ce(1)-O(4) bond length. There are a spread of Ce(1)-O(2) bond distances ranging from 2.57-2.98 Å. As(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. The As(1)-O(1) bond length is 1.73 Å. The As(1)-O(2) bond length is 1.73 Å. The As(1)-O(3) bond length is 1.72 Å. The As(1)-O(4) bond length is 1.72 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Ce(1) and one As(1) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to three equivalent Ce(1) and one As(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Ce(1) and one As(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Ce(1) and one As(1) atom.