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Figure 2 The crystal packing of the title compound, viewed down the a axis. Dashed lines indicate the inter­molecular C5—H⋯O6 inter­actions, making helical chains along [010]. Only H atoms involved in hydrogen bonds were shown for clarity. Symmetry codes: (i) –x + 1, y + [{1\over 2}], –z + [{3\over 2}]; (iv) x – 1/2, –y + [{1\over 2}], –z + 1; (v) –x + [{1\over 2}], –y + 1, z – 1/2; (vi) x – 1/2, –y + [{3\over 2}], –z + 1; (vii) –x + 1, y – 1/2, –z + [{3\over 2}].

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 70| Part 8| July 2014| Page o839
doi:10.1107/S1600536814014974
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