(E)-1,2-Bis(3-bromo-4-methylphenyl)ethene
نویسندگان
چکیده
In the structure of the title compound, C(16)H(14)Br(2), the central C=C bond length is 1.329 (4) Å and the two benzene rings are approximately coplanar with the double bond, with twist angles of 7.5 (2) and 13.6 (2)°.
منابع مشابه
Isostructural or not? Adducts of some aryltin halides with (E)-1,2-bis(4-pyridyl)ethene.
The title complexes [mu-(E)-4,4'-(ethene-1,2-diyl)dipyridine-kappa(2)N:N']bis[halotris(4-methylphenyl)tin(IV)], [Sn(2)(C(7)H(7))(6)X(2)(C(12)H(10)N(2))], where halo is chloro (X = Cl) and bromo (X = Br) are isostructural. In both crystals, the molecules lie on inversion centers, and there are voids of ca 80 A(3) that could, but apparently do not, accommodate water molecules. The corresponding i...
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In the title polymeric Cu(I) compound, [Cu(2)Br(2)(C(12)H(10)N(2))](n), the Cu cation is coordinated by an N atom from the 1,2-bis-(4-pyrid-yl)ethene ligand and three Br(-) anions in a distorted tetra-hedral CuBr(3)N coordination geometry. Each Br(-) anion bridges three Cu cations related by inversion centers, forming a stair-like polymeric chain along the a axis, and the terminal N atoms of th...
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In the title coordination compound, {[Zn(C(7)H(4)BrO(2))(2)(C(12)H(10)N(2))]·CH(3)CN}(n), the Zn(II) atom is four-coordinated in a distorted tetra-hedral environment by two carboxyl-ate O atoms from two different 4-bromo-benzoate (bpe) ligands and two N atoms from two symmetry-related 1,2-bis-(4-pyrid-yl)ethene ligands. The Zn(II) atoms are bridged by the bpe ligands, which lie across centres o...
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In the title dinuclear Cu(II) complex, [Cu(2)(C(7)H(3)NO(4))(2)(C(12)H(10)N(2))(H(2)O)(2)]·2H(2)O, the water-coordinated Cu(II) cation is O,N,O'-chelated by a pyridine-2,6-dicarboxyl-ate (pdc) dianion, and one pyridine N atom from a 1,2-bis-(4-pyrid-yl)ethene ligand coordinates to the Cu(II) cation, completing the CuN(2)O(3) distorted square-pyriamidial geometry. The Cu-O(water) bond [2.388 (4)...
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In the title compound, C(27)H(26)Br(2)N(2)O, the piperazine ring adopts a chair conformation with the N-C bonds in equatorial orientations. The C=C double bond has an E configuration. The dihedral angle between the bromo-benzene rings is 83.0 (4)°. In the crystal, inversion dimers linked through pairs of C-H⋯O hydrogen bonds generate R(2) (2)(10) loops.
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