KCr(SO4)2*12H2O Nyburg S C, Steed J, Aleksovska S, Petrusevski V M Acta Crystallographica B56 (2000) 204-209 Structure of the alums. I. On the sulfate group disorder in the alpha-alums Sample: T = 173 K _database_code_amcsd 0009914 12.2133 12.2133 12.2133 90 90 90 Pa3 atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) K .5 .5 .5 .0562 .0562 .0562 .0562 .0097 .0097 .0097 Cr 0 0 0 .0111 .0111 .0111 .0111 -.0005 -.0005 -.0005 S .30918 .30918 .30918 .0150 .0150 .0150 .0150 .0026 .0026 .0026 O3 .2403 .2403 .2403 .913 .0400 .0400 .0400 .0400 -.0060 -.0060 -.0060 O3A .3782 .3782 .3782 .087 .0320 .032 .032 .032 -.022 -.022 -.022 O4 .2660 .42175 .31071 .913 .0303 .0398 .0238 .0271 .0150 .0118 .0076 O4A .2856 .2030 .3612 .087 .0140 .015 .003 .023 .010 .024 .023 O1 .15926 .01347 -.0155 .0189 .0135 .0256 .0177 -.0036 .0018 .0019 O2 .0473 .13690 .30445 .0255 .0247 .0248 .0270 .0001 -.0038 -.0031 H11 .181 .026 -.062 .016 H12 .200 .017 .042 .012 H21 .087 .160 .292 .046 H22 .006 .178 .287 .016