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Figure 2 The molecular packing of (I). (a) shows the 1-D chain formed by intramolecular and intermolecular C—H⋯O interactions. (b) shows the 3-D network formed by 1-D chains through further intermolecular C4—H4⋯O1 and O1—H1⋯O3 interactions. Hydrogen bonds are indicated by dashed lines. |