Cs2O Wyckoff R W G Crystal Structures 1 (1963) 239-444 Second edition. Interscience Publishers, New York, New York Note: cadmium chloride structure _database_code_amcsd 0011806 4.256 4.256 18.99 90 90 120 R-3m atom x y z Cs 0 0 .256 O 0 0 0