K O4 Ru Silverman M, Levy H Journal of the American Chemical Society 76 (1954) 3317-3319 Crystal Structure of Potassium Perruthenate, K Ru O4 _cod_database_code 1008130 _database_code_amcsd 0016072 5.609 5.609 12.991 90 90 90 I4_1/a atom x y z Ru1 0 0 0 K1 0 0 .5 O1 .244 .117 .073