Crystal structure of (E)-4,6-dimethoxy-2-(4-methoxystyryl)-3-methylbenzaldehyde
نویسندگان
چکیده
In the title mol-ecule, C19H20O4, the central C=C double bond adopts an E configuration. The dihedral angle formed by the planes of the two benzene rings is 83.57 (12)°. The three meth-oxy groups are essentially coplanar with the benzene rings to which they are attached, with C C-O-C torsion angles of -0.2 (3), -2.3 (3) and -4.1 (3)°.
منابع مشابه
(Z)-2-{2,4-Dimethoxy-6-[(E)-4-methoxystyryl]benzylidene}quinuclidin-3-one
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In the title compound, C(7)H(11)N(2)O(2)S(+)·Cl(-), the 4,6-dimeth-oxy-2-(methyl-sulfan-yl)pyrimidinium cation is essentially planar (r.m.s. deviation = 0.043 Å). In the crystal, the anions and cations are connected by inter-molecular N-H⋯Cl and C-H⋯Cl hydrogen bonds, forming a two-dimensional network parallel to (011). Adjacent networks are cross-linked via π-π inter-actions involving the pyri...
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In the title compound, C24H21NO3S, the dihedral angles between the indole ring system (r.m.s. deviation = 0.030 Å) and the sulfur and ethyl-ene-bonded benzene rings are 80.2 (2) and 49.29 (15)°, respectively. The dihedral angle between the pendant benzene rings is 37.7 (2)°. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds and weak C-H⋯π and π-π [centroid-to-centroid distances = 3....
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The asymmetric unit of the title compound, C(7)H(10)N(2)O(4)S, comprises of two independent mol-ecules (A and B) which differ in the orientation of the methyl-sulfonyl group [C-S-C-N = 157.98 (13)° in mol-ecule A and 6.09 (18)° in mol-ecule B]. In the crystal structure, mol-ecules of type A are linked into chains along the a axis by inter-molecular C-H⋯O hydrogen bonds. The B mol-ecules are lin...
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عنوان ژورنال:
دوره 71 شماره
صفحات -
تاریخ انتشار 2015