Pb2AsO2OHCl2 Effenberger H, Miletich R, Pertlik F Acta Crystallographica C46 (1990) 541-543 Structure of dilead(II) hydrogenarsenate(III) dichloride _database_code_amcsd 0010122 6.410 5.525 9.293 90 90.69 90 P2_1/m atom x y z Uiso Pb1 .28878 .25 .44178 .0195 Pb2 .52952 .25 .83910 .0235 As .7734 .25 .3127 .0167 O1 .7415 .25 .1210 .036 O2 .5955 .0144 .3519 .019 Cl1 .2403 .25 .0987 .031 Cl2 .8862 .25 .6587 .026