Cl2 Cr2 Hg K2 O7 Averbuch-Pouchot M, El-Horr N, Guitel J Acta Crystallographica C40 (1984) 725-728 Structures of Mercury Dichloride - Dipotassium Dichromate (1/1), Hg Cl2 K2 Cr2 O7, and Mercury Dichloride - Diammonium Dichromate (1/1), Hg Cl2 ((N H4)2 Cr2 O7) _cod_database_code 1008240 _database_code_amcsd 0016162 12.372 10.438 8.191 90 92.32 90 P2_1/n atom x y z Hg1 0 0 0 Hg2 0 0 .5 Cr1 .3864 .1671 .0437 Cr2 .3897 .1636 .4537 K1 .1586 .3249 .7485 K2 .1301 .3489 .2515 Cl1 .1381 .0219 .2034 Cl2 .1377 .0187 .7034 O1 .4041 .116 .249 O2 -.0046 .255 .494 O3 .2832 .261 .021 O4 .3720 .036 .936 O5 .4958 .248 .507 O6 .3891 .035 .559 O7 .2809 .243 .474