Research Letter

Mean Amplitudes of Vibration of the I F 8 Anion

Table 1

Mean amplitudes of vibration (in Å ) for the I F 8 anion in the temperature range between 0 and 1000 K.

𝑇 (K) u I - F u F F (in plane) u F F (betw. planes)

00.04260.0620.072
1000.04260.0620.072
2000.04330.0640.079
298.160.04550.0690.089
3000.04560.0690.089
4000.04870.0750.099
5000.05210.0820.109
6000.05560.0880.118
7000.05900.0940.127
8000.06240.1000.135
9000.06560.1050.143
10000.06880.1100.150