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Figure 7
Laplacian of the total experimental electron density in a chromen-2-one ring system plane. Contours ± 2, 4, 8 × 10n e Å−5, n = −1, 0, 1. Blue contours indicate the positive region; red lines – negative regions; yellow dashed line – zero regions. Bond critical points are denoted with + symbols.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 68| Part 6| November 2012| Pages 646-660
doi:10.1107/S0108768112042826
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