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| Figure 1 . Molecular structure of (I), showing displacement ellipsoids at the 50% probability level. Only the major component of the C6 position is shown (the atom was refined isotropically). |
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| Figure 1 . Molecular structure of (I), showing displacement ellipsoids at the 50% probability level. Only the major component of the C6 position is shown (the atom was refined isotropically). |