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Figure 3
Packing diagram of 3a, viewed perpendicular to (110), showing the formation of a ribbon of mol­ecules linked by classical hydrogen bonds (dashed lines). Labelled atoms indicate the asymmetric unit. Hydrogen atoms not involved in hydrogen bonding are omitted.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
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