(E)-2,3-Bis[(E)-benzylideneamino]but-2-enedinitrile
نویسندگان
چکیده
The asymmetric unit of the title compound, C(18)H(12)N(4), consists of a half-mol-ecule, where the two halves of the mol-ecule are related by inversion symmetry. The mol-ecule is effectively planar, with the largest deviation from the 22-atom mean plane, measuring 0.024 (2) Å, exhibited by the ortho-C atom of the phenyl ring. The crystal structure exhibits π-stacking, with an inter-planar spacing of 3.431 (3) Å.
منابع مشابه
trans-2,3-Bis(2,4,5-trimethyl-3-thienyl)but-2-enedinitrile
In title compound, C(18)H(18)N(2)S(2), the dihedral angle between two thio-phene rings is 61.83 (8)°.
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In the crystal structure of the title compound, C(11)H(26)N(3) (+)·Cl(-)·C(4)H(4)N(4), the (2Z)-2,3-diamino-but-2-ene-dinitrile (Z-DAMN) mol-ecules are connected with the chloride ions via N-H⋯Cl hydrogen bonds, forming ribbons running along the a axis. The guanidinium ions are located in between the ribbons formed by Z-DAMN mol-ecules and chloride ions.
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The asymmetric unit of the title compound, C(11)H(8)N(4), contains two independent mol-ecules. In the crystal structure, inter-molecular N-H⋯N hydrogen bonds link mol-ecules into ribbons extended in the [100] direction.
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The structures of five of the possible six isomers of (E,E)-1,4-bis(nitrophenyl)-2,3-diaza-1,3-butadiene are reported, including two polymorphs of one of the isomers. (E,E)-1,4-Bis(2-nitrophenyl)-2,3-diaza-1,3-butadiene, C(14)H(10)N(4)O(4) (I), crystallizes in two polymorphic forms (Ia) and (Ib) in which the molecules lie across centres of inversion in space groups P2(1)/n and P2(1)/c, respecti...
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