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| Figure 1 . Molecular structure of (I) showing the atom labeling scheme. Displacement ellipsoids are drawn at the 50% probability level. Intramolecular O—H⋯O bonds are shown as dashed lines. |
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| Figure 1 . Molecular structure of (I) showing the atom labeling scheme. Displacement ellipsoids are drawn at the 50% probability level. Intramolecular O—H⋯O bonds are shown as dashed lines. |