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Figure 8
(a) The mol­ecular structure of BMHFN, showing the atom-labelling scheme, with displacement ellipsoids for non-H atoms drawn at the 30% probability level at 293 K. (b) The Hirshfeld surface for BMHFN, mapped over dnorm. Two red spots correspond to C5—H5⋯O1(−x + 1, y − [{1\over 2}], −z + [{3\over 2}]) (marked a). (c) The shape-index surface of BMHFN, identifying π–π stacking inter­actions b, c and d. Only red and blue triangles on the surface are shown for clarity. (d) 2D layer structure formed by NCIs a b, c and d (shown with red, green, blue and yellow dashed lines, respectively), viewed along the a axis. Four discontinuous lines are shown, the left two (along the b axis) are formed by NCI a and the top two (along the c axis) are formed by NCIs b and d. Mol­ecules in the bottom right corner are illustrated by the simplified structure (centre of gravity), showing four kinds of orientations.

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 76| Part 1| January 2020| Pages 44-63
https://doi.org/10.1107/S2053229619015687
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