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5,7-Dihydroxy-6,4'-dimeth-oxyflavone.

ABSTRACT: In the title compound, C(17)H(14)O(6), the benzopyran ring system is essentially planar and forms a dihedral angle of 6.84?(4)° with the other benzene ring. In the crystal structure, centrosymmetrically related mol-ecules are linked into dimers by O-H?O hydrogen bonds. The crystal packing is controlled by C-H?? and ?-? stacking inter-actions involving the benzopyran and benzene rings, with centroid-centroid distances between 3.645?(2) and 3.986?(2)?Å.

SUBMITTER: Mou MY

PROVIDER: S-EPMC2915028 | biostudies-literature | 2007 Dec

REPOSITORIES: biostudies-literature

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5,7-Dihydroxy-6,4'-dimeth-oxyflavone.

Mou Ming-Yue MY Pi Ke K Zhang Qi-Long QL Zhang Yun-Qian YQ Zhang Qian-Jun QJ

Acta crystallographica. Section E, Structure reports online 20071206 Pt 1

In the title compound, C(17)H(14)O(6), the benzopyran ring system is essentially planar and forms a dihedral angle of 6.84 (4)° with the other benzene ring. In the crystal structure, centrosymmetrically related mol-ecules are linked into dimers by O-H⋯O hydrogen bonds. The crystal packing is controlled by C-H⋯π and π-π stacking inter-actions involving the benzopyran and benzene rings, with centroid-centroid distances between 3.645 (2) and 3.986 (2) Å. ...[more]

PMID: 21200948

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