PbI2 Wyckoff R W G Crystal Structures 1 (1963) 239-444 Second edition. Interscience Publishers, New York, New York _database_code_amcsd 0011822 4.557 4.557 41.874 90 90 120 R-3m atom x y z Pb1 0 0 0 Pb2 0 0 .5 I1 0 0 .123 I2 0 0 .289