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| Figure 1 The molecular structure of (I) with displacement ellipsoids drawn at the 40% probability level and the intramolecular π-π stacking interactions shown as double-dashed lines betweent the ring centroids. |
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| Figure 1 The molecular structure of (I) with displacement ellipsoids drawn at the 40% probability level and the intramolecular π-π stacking interactions shown as double-dashed lines betweent the ring centroids. |