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Figure 9
Compound (2): the simple C12 chain formed by the C2—H2⋯O64 weak hydrogen bond. This chain extends along the b axis and is generated by the twofold screw-axis at (1, y, [1\over4]). Symmetry codes: (i) −x + 2, y + [{1\over 2}], −z + [{1\over 2}]; (ii) −x + 2, y − [{1\over 2}], −z + [{1\over 2}]. H atoms not involved in the hydrogen bonding are omitted.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 72| Part 3| March 2016| Pages 307-313
doi:10.1107/S2056989016001833
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