1,4-Bis[(2,6-dimethoxyphenyl)ethynyl]benzene
نویسندگان
چکیده
The title compound, C(26)H(22)O(4), is a derivative of 1,4-bis-(phenyl-ethyn-yl)benzene substituted by four meth-oxy groups at the terminal benzene rings. The asymmetric unit consists of two half-molecules; one centrosymmetric molecule is planar but the other is non-planar, with dihedral angles of 67.7 (1)° between the central benzene ring and the terminal benzene rings. In the crystal structure, mol-ecules form a zigzag mol-ecular network due to π-π [the inter-planar and centroid-centroid distances between the benzene rings are 3.50 (1) and 3.57 (1) Å, respectively] and C-H⋯π inter-actions (2.75 Å). Introduction of the four meth-oxy groups results in the supra-molecular architecture.
منابع مشابه
1,4-Bis[(3,5-dimethoxyphenyl)ethynyl]benzene
The title compound, C(26)H(22)O(4), is a derivative of 1,4-bis-(phenyl-ethyn-yl)benzene substituted by four meth-oxy groups on the terminal benzene rings. The mol-ecule is almost planar with an r.m.s. deviation of 0.266 Å. The dihedral angles between the two terminal benzene rings and the central benzene ring are 7.96 (6) and 13.32 (7)°. In the crystal structure, mol-ecules aggregate via C-H⋯O ...
متن کاملDimethyl 4-(3,4-dimethoxyphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate
In the title compound, C(19)H(23)NO(6), the 1,4-dihydro-pyridine ring is twisted slightly from planarity, with a maximum deviation of 0.101 (1) Å, and adopts a very flattened boat conformation. The dihedral angle formed between the plane through the four C atoms of the 1,4-dihydro-pyridine ring and the benzene ring is 84.67 (7)°. In the crystal structure, inter-molecular N-H⋯O and C-H⋯O hydroge...
متن کاملcatena-Poly[[dichloridomercury(II)]-μ-1,4-bis[2-(pyridin-4-yl)ethynyl]benzene-κ2 N:N′]
In the polymeric title compound, [HgCl2(C20H12N2)] n , the Hg(II) atom is located on a twofold rotation axis and the benzene ring of the bidentate bridging 1,4-bis-[2-(pyridin-4-yl)ethyn-yl]benzene (L) ligand is located about a twofold rotation axis. The Hg(II) atom is coordinated by two N atoms of two different L ligands and by two chloride ions in a distorted tetra-hedral geometry. The dihedr...
متن کاملControl of Assembly of Dihydropyridyl and Pyridyl Molecules via Directed Hydrogen Bonding
The crystallization of two dihydropyridyl molecules, 1,4-bis(4-(3,5-dicyano-2,6-dipyridyl)dihydropyridyl)benzene ([C40H24N10]·2DMF, 1·2DMF; DMF = dimethylformamide) and 1,4-bis(4-(3,5-dicyano-2,6-dipyridyl)dihydropyridyl)phenylbenzene ([C46H28N10]·2DMF, 3·2DMF), and their respective oxidized pyridyl analogues, 1,4-bis(4-(3,5-dicyano-2,6-dipyridyl)pyridyl)benzene ([C40H20N10], 2) and 1,4-bis(4-(...
متن کامل2,5-Bis[2-(4-methylphenyl)ethynyl]benzyl methacrylate
In the title bis-tolane derivative, C(29)H(24)O(2), the central benzene ring forms dihedral angles of 29.12 (9) and 26.46 (9)° with the other two benzene rings. The dihedral angle between two terminal benzene rings is 55.58 (8)°.
متن کامل