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Figure 2 Packing diagram of I showing classical and "weak" H bonds as thick or thin dashed bonds respectively. The double chain pattern is apparent.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 64| Part 7| June 2008| Page o1369
doi:10.1107/S1600536808017868
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