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(E)-1-(2,5-Dichlorothiophen-3-yl)ethanone [8-(trifluoromethyl)quinolin-4-yl]hydrazone

Author(s): A. S. Dayananda | H. S. Yathirajan | William T. A. Harrison | Alexandra M. Z. Slawin

Journal: Acta Crystallographica Section E
ISSN 1600-5368

Volume: 68;
Issue: 3;
Start page: o790;
Date: 2012;
Original page

In the title compound, C16H10Cl2F3N3S, the dihedral angle between the quinoline and thiophene ring systems is 4.94 (10)°. The NH group of the hydrazone moiety does not form a hydrogen bond, due to a steric crowding. In the crystal, the thiophene ring takes part in weak π–π stacking interactions with the pyridine ring [centroid-to-centroid separation = 3.7553 (19) Å and interplanar angle = 5.48 (12)°] and the benzene ring [3.7927 (19) Å and 4.58 (12)°]. Together, these lead to [100] stacks of molecules in an alternating head-to-tail arrangement, with two π–π stacking contacts between each adjacent pair.
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