H10 Hf K4 O21 Tranqui D, Boyer P, Laugier J, Vulliet P Acta Crystallographica B33 (1977) 3126-3133 Structure cristalline du tetrakisoxalatohafniate de potassium pentahydrate K4 Hf (C2 O4)4 (H2 O)5 _cod_database_code 1008018 _database_code_amcsd 0015966 10.640 12.350 15.940 90 94.27 90 P2_1/c atom x y z Hf1 .76273 .34876 .17271 K1 .12726 .34486 .24721 K2 .01702 .22821 .51150 K3 .50892 .06103 .30899 K4 .39160 .32650 .40996 O1 .63788 .38921 .27242 O2 .87488 .35036 .29234 O3 .88647 .39037 .42764 O4 .62873 .43314 .40704 O5 .56678 .36980 .11623 O6 .76234 .31897 .03836 O7 .65421 .31489 -.08427 O8 .44291 .3774 -.00339 O9 .93910 .42186 .13714 O10 .74013 .52285 .16299 O11 .82155 .68276 .13010 O12 .03915 .56884 .09761 O13 .90743 .22115 .16452 O14 .67786 .1920 .19308 O15 .70332 .01329 .20501 O16 .95776 .04939 .18800 C1 .68637 .40347 .34949 C2 .82980 .37886 .36056 C3 .54439 .36146 .03653 C4 .65975 .32883 -.01118 C5 .94762 .52157 .12290 C6 .82844 .58467 .14013 C7 .88430 .12425 .18171 C8 .74065 .10400 .19579 O17 .17197 .42795 .46924 O18 .18617 .15217 .14905 O19 .22442 .40628 .08490 O20 .39409 .25709 .24569 O21 .45955 .13587 .07610