N-[2-(2-Bromobenzylamino)phenyl]-N-butylformamide
نویسندگان
چکیده
The title compound, C(18)H(21)BrN(2)O, crystallizes with two mol-ecules (A and B) in the asymmetric unit (Z' = 2). The major differences between the two mol-ecules are related to the conformations adopted by their n-butyl side chains. The phenyl rings in both mol-ecules are almost perpendicular, making dihedral angles of 79.2 (3) and 80.8 (3)°. The amide units are planar (r.m.s. deviations of 0.0018 and 0.021 Å) and almost perpendicular to the phenyl rings to which they are attached [dihedral angles of 68.9 (4) and 71.1 (4)°]. In the crystal, molecules A and B each form only an intermolecular N-H⋯O hydrogen bond with an adjacent molecule of the same kind. There are no significant intermolecular interactions between molecules A and B.
منابع مشابه
{(S)-2-[({2-[1-(Anthracen-9-ylmethyl)pyrrolidine-2-carboxamido]phenyl}(phenyl)methylidene)amino]acetato(2−)-κ4 N,N′,N′′,O 1}nickel(II)
The title compound, [Ni(C(35)H(29)N(3)O(3))], includes a Schiff base ligand derived from (S)-1-[(anthracen-9-yl)meth-yl]-N-(2-benz-oyl-phen-yl)pyrrolidine-2-carboxamide and glycine. The Ni(II) atom is coordinated by three N atoms [Ni-N = 1.937 (3), 1.850 (3) and 1.850 (3) Å] and one O atom [Ni-O = 1.859 (2) Å], resulting in a pseudo-square-planar coordination environment.
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The central Ni atom of the title compound, [Ni(C(29)H(29)N(3)O(4))], is coordinated by three N atoms [Ni-N = 1.955 (2), 1.844 (2) and 1.872 (2) Å] and by one O atom [Ni-O = 1.862 (2) Å] in a pseudo-square-planar geometry. The conformation of the hydroxy-butanoate side chain is controlled by a strong intra-molecular hydrogen bond (H⋯O = 1.84 Å).
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The title mol-ecule, C(32)H(24)N(2)O(2), has a crystallographically imposed inversion centre and exists in the crystal as an enol-imine tautomer. The mol-ecular structure is stabilized by two strong intra-molecular O-H⋯N hydrogen bonds. The dihedral angles between the central benzene ring and the mean planes of the phenyl substituents are 59.99 (1) and 62.79 (2)°. In the crystal, the mol-ecules...
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Mol-ecules of the title compound, C(34)H(38)N(4)O(2), lie across crystallographic inversion centres. The crystal packing can be described by alternating zigzag chains along the c axis in which the molecules are linked by van der Waals interactions. There is an intra-molecular O-H⋯N hydrogen bond and the two benzene rings in the asymmetric unit make a dihedral angle of 79.81 (6)°.
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The asymmetric unit of the title compound, C(18)H(20)N(2)S(4), contains one half-mol-ecule, the complete molecule being generated by a twofold rotation axis. The plane through the NCS(2) group [maximum deviation = 0.01 (7) Å] is orthogonal to the phenyl ring, forming a dihedral angle of 89.4 (3)°. The crystal structure is stabilized by inter-molecular C-H⋯π inter-actions.
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