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- W2618588320 abstract "The title organoselenium compound, C19H13ClO3Se {systematic name: 2-[(4-chloro-phen-yl)selan-yl]-2H,3H,4H,5H,6H-naphtho-[1,2-b]pyran-5,6-dione}, has the substituted 2-pyranyl ring in a half-chair conformation with the methyl-ene-C atom bound to the methine-C atom being the flap atom. The dihedral angle between the two aromatic regions of the mol-ecule is 9.96 (9)° and indicates a step-like conformation. An intra-molecular Se⋯O inter-action of 2.8122 (13) Å is noted. In the crystal, π-π contacts between naphthyl rings [inter-centroid distance = 3.7213 (12) Å] and between naphthyl and chloro-benzene rings [inter-centroid distance = 3.7715 (13) Å], along with C-Cl⋯π(chloro-benzene) contacts, lead to supra-molecular layers parallel to the ab plane, which are connected into a three-dimensional architecture via methyl-ene-C-H⋯O(carbon-yl) inter-actions. The contributions of these and other weak contacts to the Hirshfeld surface is described." @default.
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- W2618588320 date "2017-05-31" @default.
- W2618588320 modified "2023-10-17" @default.
- W2618588320 title "2-[(4-Chlorophenyl)selanyl]-3,4-dihydro-2<i>H</i>-benzo[<i>h</i>]chromene-5,6-dione: crystal structure and Hirshfeld analysis" @default.
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- W2618588320 doi "https://doi.org/10.1107/s2056989017007605" @default.
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