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Figure 4
Views of the Hirshfeld surface mapped over dnorm for 1 and the corresponding FP plot. The highlighted red spots with large area on the top left image indicate O⋯H contact points involving the carbonyl oxygen atom of the chromone core and the hydrogen atom of the hydroxyl substituent while the pair of superposed light-red spots indicate C⋯H and O⋯H close contacts. The small red-spot areas on the concave and convex face of the right image are due to C⋯H close contacts. The bottom of the figure presents the FP plot for mol­ecule 1 The light-blue area in the middle of the FP plot at de/di ∼ 1.9 Å shows a higher frequency of the pixels that are due to C⋯C contacts. The sharp spikes pointing to southwest are due to O⋯H contacts: the inner one on the right is related to O⋯H contacts and the short wings due to C⋯H close contacts (see Fig. 5[link] for details).

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 73| Part 8| August 2017| Pages 1130-1134
https://doi.org/10.1107/S2056989017009896
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