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Figure 7
Bond paths between neighbouring pyridine rings along the polymer chain in (a) (1) and (b) (5). Gradient trajectories (red) and (3, −1) critical points (blue) in the plane defined by Cmeta of the pyridine ring, its halogen substituent, and the corresponding symmetry-equivalent atoms defined by the symmetry operator (i) x, y, 1+z. This figure is in colour in the electronic version of this paper.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 65| Part 5| August 2009| Pages 600-611
doi:10.1107/S0108768109028626
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