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. 2014 Mar 19;4:4216. doi: 10.1038/srep04216

Table 1. Average occupancy numbers and displacements of <110> and <111> interstitial O atoms in UO2+x with different x values at different temperatures. v is the displacement in <110> directions and w is in the <111> directions.

Composition UO2.06 (U32O66) UO2.13 UO2.19
Temperature 300 K 1200 K 2000 K 2000 K 2000 K
O/O'/O” 1.97/0.00/0.09 1.95/0.05/0.06 1.95/0.06/0.05 1.89/0.15/0.09 1.90/0.19/0.10
v <110> 0.67 ± 0.07 0.71 ± 0.18 0.74 ± 0.27 0.77 ± 0.21 0.72 ± 0.24
w <111> (Å) 0.78 ± 0.09 0.87 ± 0.19 0.90 ± 0.25 0.92 ± 0.20 0.90 ± 0.24