Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 12 (December 2012)

organic compounds

Acta Cryst. (2012). E68, o3304-o3305    [ doi:10.1107/S1600536812045321 ]

Ethyl 4-oxo-8-trifluoro­methyl-1,4-dihydro­quinoline-3-carboxyl­ate

B. Garudachari, A. M. Islor, M. N. Satyanarayan, T. Gerber, E. Hosten and R. Betz

Abstract: The asymmetric unit of the title compound, C13H10F3NO3, contains two independent mol­ecules with similar conformations. In the crystal, N-H...O hydrogen bonds link alternating independent mol­ecules into chains in [-110]. In the chain, the quinoline planes of the independent mol­ecules are almost perpendicular to each other, forming a dihedral angle of 89.8 (1)°. [pi]-[pi] inter­actions between the aromatic rings of quinoline bicycles related by inversion centres [for two independent centrosymmetric dimers, the shortest centroid-centroid distances are 3.495 (1) and 3.603 (1) Å] link the hydrogen-bonded chains into layers parallel to (110). Weak C-H...F and C-H...O inter­actions further consolidate the crystal packing.

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