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| Figure 1 . The molecular structure of (I), showing the atom-labelling scheme and the disordered CH2 group indicated as dashed lines. Displacement ellipsoids are drawn at the 50% probability level. |
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| Figure 1 . The molecular structure of (I), showing the atom-labelling scheme and the disordered CH2 group indicated as dashed lines. Displacement ellipsoids are drawn at the 50% probability level. |