(E)-4-Methoxy-N′-(3,4,5-trimethoxybenzylidene)benzohydrazide
نویسندگان
چکیده
In the asymmetric unit of the title compound, C(18)H(20)N(2)O(5), there are two crystallographic independent mol-ecules. Both mol-ecules are twisted; the dihedral angle between the two benzene rings is 7.2 (5)° in one mol-ecule, whereas it is 85.9 (4)° in the other. Of the three meth-oxy groups in the 3,4,5-trimeth-oxy-phenyl unit, two meth-oxy groups at meta positions are approximately coplanar with the benzene plane [C-O-C-C torsion angles of -2.3 (13)-4.8 (11)°], but the other meth-oxy, at the para position, is out of the plane [C-O-C-C of 72.8 (9)° in one mol-ecule and -77.5 (9)° in the other]. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds and weak C-H⋯O inter-actions into tapes along the b axis. C-H⋯π inter-actions are also present.
منابع مشابه
(E)-4-Hydroxy-N′-(3,4,5-trimethoxybenzylidene)benzohydrazide
The title benzohydrazide derivative, C(17)H(18)N(2)O(5), exists in a trans conformation with respect to the C=N double bond. The dihedral angle between the benzene rings is 19.41 (5)°. The two meth-oxy groups at the meta positions of the trimeth-oxy-benzene group are almost coplanar with the ring [C-O-C-C = 1.62 (16) and 178.33 (10)°], whereas the third meth-oxy group, at the para position, is ...
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