Bosoite Gerke H, Gies H Zeitschrift fur Kristallographie 166 (1984) 11-22 Studies on clathrasils. IV. Crystal structure of dodecasil 1H, a synthetic clathrate compound of silica Locality: synthetic _database_code_amcsd 0020684 13.783 13.783 11.190 90 90 120 P6/mmm atom x y z Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Si1 .4186 .2093 .2252 1.784 .0228 .0218 .0238 .0109 -.0045 -.0090 Si2 .3868 0 .3627 2.363 .0323 .0319 .0256 .0159 -.0076 0 Si3 .2628 .1314 0 1.627 .0160 .0220 .0238 .0080 0 0 Si4 1/3 2/3 .1384 1.953 .0289 .0289 .0164 .0144 0 0 O1 .1052 .3933 .3031 6.672 .0619 .1152 .7570 .0585 .0350 .0047 O2 .5429 .2715 .8164 5.393 .0229 .0805 .1012 .0114 -.0097 -.0049 O3 .3405 .1702 .1139 4.358 .0536 .0761 .0367 .0268 0 0 O4 .3601 0 .5 4.553 .0627 .0959 .0121 .0479 0 0 O5 .1865 0 0 4.006 .0418 .0132 .0970 .0066 0 0 O6 .5 0 .3451 7.240 .0610 .1523 .0621 .0762 0 0 O7 1/3 2/3 0 10.064 .1735 .1735 .0382 .0868 0 0