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Figure 4
(a) Type II halogen-bonding interactions of Compound-B. (b) The one-dimensional chain propagating through the N—H⋯N (pyridine) synthon (Form I) and packing of molecules along the c axis. (c) The tetrameric ring motif (Form II) and packing diagram (along the c axis). (d) Overlay of Form I (red) and Form II (green and magenta) of Compound-B.

IUCrJ
Volume 4| Part 6| November 2017| Pages 812-823
ISSN: 2052-2525
https://doi.org/10.1107/S2052252517014658