Crystal structure of 1,2-bis-(4-fluoro-phen-yl)-1-hy-droxy-2,3,8-tri-meth-oxy-acenaphthene: formation of a five-membered intra-molecular O-H⋯O hydrogen-bonded ring

The structure of the title compound, C H F O , at 193 K has triclinic ( ) symmetry. The hy-droxy and meth-oxy groups at the 1,2-positions of the acenaphthene core display a configuration. Both substituents are involved in the formation of a five-membered intra-molecular O-H⋯O hydrogen-bonded ring. T...

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Bibliographic Details
Published in:Acta crystallographica. Section E, Crystallographic communications Crystallographic communications, 2021-02, Vol.77 (Pt 2), p.175-179
Main Authors: Iitsuka, Hiroaki, Li, Kun, Kobayashi, Miyuki, Iida, Kikuko, Yonezawa, Noriyuki, Okamoto, Akiko
Format: Article
Language:English
Subjects:
Research Communications
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Summary:The structure of the title compound, C H F O , at 193 K has triclinic ( ) symmetry. The hy-droxy and meth-oxy groups at the 1,2-positions of the acenaphthene core display a configuration. Both substituents are involved in the formation of a five-membered intra-molecular O-H⋯O hydrogen-bonded ring. The 4-fluoro-phenyl rings make dihedral angles of 87.02 (7) and 51.86 (8)° with the naphthalene ring system. In the crystal, a pair of non-classical C-H⋯O hydrogen bonds forms centrosymmetric dimeric structures. The dimeric aggregates are linked in the plane through non-classical C-H⋯F hydrogen bonds and C-H⋯π interactions.
ISSN:2056-9890
2056-9890
DOI:10.1107/S2056989021000669