Cs2O3 is Plutonium carbide structured and crystallizes in the cubic I-43d space group. Cs(1) is bonded in a 6-coordinate geometry to nine equivalent O(1) atoms. O(1) is bonded to six equivalent Cs(1) and one O(1) atom to form a mixture of distorted corner, edge, and face-sharing OCs6O pentagonal bipyramids.
Cs2O3 is Plutonium carbide structured and crystallizes in the cubic I-43d space group. Cs(1) is bonded in a 6-coordinate geometry to nine equivalent O(1) atoms. There are a spread of Cs(1)-O(1) bond distances ranging from 3.02-3.34 Å. O(1) is bonded to six equivalent Cs(1) and one O(1) atom to form a mixture of distorted corner, edge, and face-sharing OCs6O pentagonal bipyramids. The O(1)-O(1) bond length is 1.40 Å.