Crystal structure of 7-(diethylamino)-3-(trifluoroacetyl)-2<italic>H</italic>-chromen-2-one, C15H14F3NO3.

C15H14F3NO3, monoclinic, <italic>P</italic>21 (no. 4), <italic>a</italic> = 5.0637(5) Å, <italic>b</italic> = 19.1061(19) Å, <italic>c</italic> = 7.4883(6) Å, <italic>β</italic> = 95.666(9)°, <italic>V</italic> = 720.94(12) Å3, <italic>Z</italic> = 2, <italic>Rgt</italic>(<italic>F</italic>) = 0.0463, <italic>wRref</italic>(<italic>F</italic>2) = 0.1036, T = 294.8(6) K. [ABSTRACT FROM AUTHOR]