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| Figure 4 . The crystal packing of the title compound (I), showing the stacking of the molecules down the a-axis. H atoms not involved in the intermolecular interactions have been omitted for clarity. |
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| Figure 4 . The crystal packing of the title compound (I), showing the stacking of the molecules down the a-axis. H atoms not involved in the intermolecular interactions have been omitted for clarity. |