Research Article: 2-(4-Fluoro­phen­yl)-2H-chromen-4(3H)-one

Date Published: February 01, 2012

Publisher: International Union of Crystallography

Author(s): Michał Wera, Andriy G. Chalyi, Alexander D. Roshal, Jerzy Błażejowski.


In the crystal structure of the title compound, C15H11FO2, mol­ecules form inversion dimers through pairs of weak C—H⋯O hydrogen bonds. Dimers oriented in parallel, linked by C—H⋯π contacts, are arranged in columns along the b axis. The fluoro­phenyl ring and the benzene ring of the 2H-chromen-4(3H)-one unit are inclined to one another by 70.41 (16)°. They are respectively parallel in a given column or almost perpendicular [oriented at an angle of 87.8 (1)°] in neighbouring (inversely oriented) columns, forming a herringbone pattern.

Partial Text

For general background to flavanones, see: Grayer & Veitch (2006 ▶); Nijveldt et al. (2001 ▶). For related structures, see: Białońska et al. (2007a ▶,b ▶). For inter­molecular inter­actions, see: Novoa et al. (2006 ▶); Takahashi et al. (2001 ▶). For the synthesis, see: Aitmambetov & Kubzheterova (2002 ▶); Chen et al. (2011 ▶); Wera et al. (2010 ▶).