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Figure 2
Packing in the unit cell of polymorph (A), viewed down the hydrogen-bonded chains (down [010]). Aromatic groups lie approximately parallel to the (100) plane; those from chains along the 21 screw axes at z = ¼, ¾ inter­leave at z = ½, although they are offset in the [010] direction.

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
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