Record number :
2622680
Title of article :
Crystal, mol­ecular structure and Hirshheld surface analysis of 5-hy­dr­oxy-3,6,7,8-tetra­meth­­oxy­flavone
Author/Authors :
Aisa, Haji Akber Key Laboratory of Plants Resources and Chemistry of Arid Zone, Xinjiang, Technical Institute of Physics and Chemistry - Chinese Academy of Science, People's Republic of China , Izotova, Lidiya Institute of Bioorganic Chemistry, UzAS, Uzbekistan , Karimov, Abdurashid Institute of the Chemistry of Plant Substances, UzAS, Uzbekistan , Botirov, Erkin Institute of the Chemistry of Plant Substances, UzAS, Uzbekistan , Mamadrahimov, Azimjon Institute of Bioorganic Chemistry, UzAS, Uzbekistan , Ibragimov, Bahtiyar Institute of Bioorganic Chemistry, UzAS, Uzbekistan
Pages :
9
From page :
1
To page :
9
Abstract :
The title compound (systematic name: 5-hydroxy-3,6,7,8-tetramethoxy-2- phenyl-4H-chromen-4-one), C19H18O7, is a flavone that was isolated from a butanol extract of the herb Scutellaria nepetoides M. Pop. The flavone molecule is almost planar, with a dihedral angle between the planes of the benzopyran-4- one group and the attached phenyl ring of 6.4 (4). The 5-hydroxy group forms a strong intramolecular hydrogen bond with the carbonyl group, resulting in a sixmembered hydrogen-bonded ring. The crystal structure has triclinic (P1) symmetry. In the crystal, the molecules are linked by C—HO hydrogen bonds into a two dimensional network parallel to the ab plane. The Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from HH (53.9%) and HO/OH (20.9%) interactions.
Keywords :
crystal structure , flavones , hydrogen bonding , Hirshfeld surface analysis
Journal title :
Acta Crystallographica Section E: Crystallographic Communications
Serial Year :
2020
Full Text URL :
Link To Document :
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