The values of the parameters obtained from the least squares solution, taking both films into account, are a=(4.8734* 0.0005) X cm.; c=(3.3103* 0.0010) X lo-* cm. The* rep resents the standard error. The values of a and care for a temperature of 25'. From the values of a and c and thl molecular weight of 92.93 the calculated density is 3.925* 0.003 g.~ rn.-~ at 25'. This is in good agreement with the measured density of 3.922 f 0.004. In the lInF2 structure ...
