(E)-1-(4-Methylphenyl)ethanone [8-(trifluoromethyl)quinolin-4-yl]hydrazone
نویسندگان
چکیده
In the title compound, C(19)H(16)F(3)N(3), the dihedral angle between the naphthalene and quinoline ring systems is 14.58 (8)°. The hydrazone C-N-N=C-C chain is in an extended conformation and its mean plane is nearly coplanar with the quinoline plane [dihedral angle = 3.45 (9)°]. The bond angles within the phenyl ring show the almost additive influence of the two para substituents. In the crystal, weak π-π [centroid-centroid distances = 3.779 (2) and 3.718 (1) Å] and C-H⋯F directional inter-actions join the mol-ecules into centrosymmetric dimers, which are further connected into infinite zigzag chains propagating along a.
منابع مشابه
3,4-Dimethoxybenzaldehyde [2,8-bis(trifluoromethyl)quinolin-4-yl]hydrazone
In the title compound, C(20)H(15)F(6)N(3)O(2), the quinoline ring system is almost coplanar with the benzene ring; the dihedral angle between the two planes is 2.31 (8)°. The crystal structure displays an inter-molecular C-H⋯F hydrogen bond. In addition, a weak π-π inter-action is observed between the unfused benzene ring and the benzene ring of quinoline, with a centroid-centroid distance of 3...
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In the title compound, C(16)H(10)Cl(2)F(3)N(3)S, the dihedral angle between the quinoline and thio-phene 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 thio-phene ring takes part in weak π-π stacking inter-actions with the pyridine ring [centroid-to-centroid separation = 3.7553 (19) Å and inter-planar...
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In the title mol-ecule, C(18)H(16)F(3)N(5)O(2), the dihedral angle between the pyridine ring and the fused benzene ring is 4.50 (10)°. The triazole ring makes dihedral angles of 54.48 (12) and 57.91 (11)° with the pyridine and benzene rings, respectively. The morpholine ring atoms are disordered over two positions; the site-occupancy factors are ca 0.53 and 0.47. Inter-molecular C-H⋯F hydrogen ...
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In the title mol-ecule, C(20)H(22)F(3)N(3)OS, the piperazine ring has a chair conformation, and the N-C(=O)-C-N torsion angle is -59.42 (14)°. In the crystal, weak C-H⋯O and C-H⋯π inter-actions link the mol-ecules into layers parallel to (101).
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