KCo2Se2O10H3 Krickl R, Wildner M European Journal of Mineralogy 19 (2007) 805-816 Crystal chemistry of synthetic Co- and Ni-analogues of natrochalcite - the shortest known hydrogen bonds among mineral-type compounds Part I: single-crystal X-ray structures Sample: T = 293 K _database_code_amcsd 0007251 9.078 6.471 7.687 90 113.99 90 C2/m 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 0 .5 .5 .0160 .0139 .0193 .0142 0 .0050 0 Co .25 .25 0 .0098 .0089 .0078 .0122 .0001 .0038 -.0002 Se .08213 0 .28441 .96 .0083 .0072 .0089 .0087 0 .0031 0 Cr .08213 0 .28441 .04 .0083 .0072 .0089 .0087 0 .0031 0 O1 .19589 0 .15910 .0121 .0136 .0111 .0158 0 .0102 0 O2 .19819 0 .50743 .0222 .0178 .0342 .0099 0 .0008 0 O3 -.03048 .20959 .22700 .0134 .0110 .0103 .0168 .0026 .0036 -.0012 Oh .15216 .5 .08125 .0115 .0102 .0097 .0158 0 .0066 0 H1 .056 .5 .052 .5 .06 H2 .181 .5 .187 .035