Mj. Kim et al., ETHYL -FLUORO-3-OXO-2-(P-TOLUOYL)-3-(P-TOLYL)PROPANOATE, C20H19O4F, Acta crystallographica. Section C, Crystal structure communications, 52, 1996, pp. 3127-3128
The structure of the title compound was determined by single-crystal X
-ray methods. The carbonyl C=O bond distances are approximately 1.20 A
ngstrom and van der Waals intermolecular contacts are normal. The bond
distances are normal for all bonds in the molecule except for those i
nvolving C9: the C--F bond distance is 1.382 (6) Angstrom and the C--C
bond distances are 1.545 (8), 1.531 (8) and 1.529 (9) Angstrom, all a
pproximately 0.05 Angstrom longer than normal for these bonds.