On the Disorder in Crystalline 2,2-Dinitropropane at Room Temperature
- 1 July 1953
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 21 (7) , 1218-1219
- https://doi.org/10.1063/1.1699166
Abstract
2,2‐dinitropropane forms face‐centered, cubic crystals at room temperature, with a0=8.78±0.05A, and 4 molecules per unit cell. Molecular disorder is necessarily present in the cell, and several models are examined. Excellent agreement is obtained with a model in which the molecule possesses complete orientational disorder. Although the distinction between ``rotational'' disorder in time and in space is not possible, the following mechanism is suggested: while the disorder is complete at long range, there is a high degree of order at short range.Keywords
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