Research Article: 2,2,2-Trifluoro-N-(4-methyl-2-oxo-2H-chromen-7-yl)acetamide

Date Published: April 01, 2012

Publisher: International Union of Crystallography

Author(s): Hong-Da Li, Bing-Zhu Yin.


In the title mol­ecule, C12H8F3NO3, the trifluoro­methyl group is rotationally disordered over three orientations in a 0.5:0.3:0.2 ratio. In the crystal, N—H⋯O hydrogen bonds link the mol­ecules related by translation into chains along the c axis. The crystal packing exhibits π–π inter­actions between the pyran rings of neighboring mol­ecules [centroid–centroid distance = 3.462 (4) Å] and short C⋯O contacts of 3.149 (4) Å.

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For applications of coumarin derivatives, see: Li et al. (2012 ▶). For potential applications of the title compound as a fluorescent probe for cyanide, see: Li et al. (2011 ▶).