Ba(OH)2.3H2O Lutz H D, Kellersohn T, Vogt T Acta Crystallographica C46 (1990) 361-363 Hydrogen bonding in barium hydroxide trihydrate by neutron diffraction _database_code_amcsd 0010106 7.640 11.403 5.965 90 90 90 Pnma atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Ba .5452 .25 .9214 .0145 .0173 .0109 0 -.0005 0 O1 .4013 .25 .4805 .0186 .0215 .0210 0 .0049 0 O2 .7365 .3993 .6313 .0215 .0217 .0223 -.0028 -.0027 .0046 O3 .5643 .4175 .2425 .0249 .0203 .0196 -.0007 -.0003 -.0016 H1 .4557 .3180 .4016 .038 .027 .029 -.002 .005 .001 H21 .8043 .4727 .6667 .033 .026 .034 -.003 .001 -.001 H22 .6765 .4116 .4829 .033 .032 .028 -.001 -.003 .003 H3 .4669 .4688 .2504 .035 .036 .062 .009 .006 .006