6,6′-Diethoxy-2,2′-[propane-1,3-diyldioxybis(nitrilomethylidyne)]diphenol
نویسندگان
چکیده
The complete mol-ecule of the title compound, C(21)H(26)N(2)O(6), is generated by a crystallographic twofold axis and adopts a trans configuration with respect to the azomethine group. The two benzene rings are almost perpendicular to one another, making a dihedral angle of 89.53 (3)°. In the mol-ecular structure, pairs of intra-molecular O-H⋯N hydrogen bonds generate two six-membered rings. The crystal structure is further stabilized by inter-molecular C-H⋯O hydrogen bonds, which link four adjacent mol-ecules into a network structure.
منابع مشابه
6,6′-Diethoxy-2,2′-[propane-1,2-diylbis(nitrilomethylidyne)]diphenol
In the title mol-ecule, C(21)H(26)N(2)O(4), the dihedral angle between the two benzene rings is 88.4 (3)°. Two fairly strong intra-molecular O-H⋯N hydrogen bonds may, in part, influence the mol-ecular conformation.
متن کاملDichlorido-2κ2 Cl-{μ-6,6′-dimethoxy-2,2′-[propane-1,3-diylbis(nitrilomethylidyne)]diphenolato-1κ4 O 1,N,N′,O 1′:2κ2 O 1,O 1′}copper(II)zinc(II)
In the title compound, [CuZnCl(2)(C(19)H(20)N(2)O(4))], the Cu(II) ion exhibits a slightly distorted square-planar coordination geometry defined by two N atoms and two O atoms of the 6,6'-dimeth-oxy-2,2'-[propane-1,3-diylbis(nitrilo-methyl-idyne)]diphenolate Schiff base ligand. The Zn(II) ion is also four-coordinated by the two phenolate O atoms of the Schiff base ligand and by two cis-coordina...
متن کاملA second tricilinc polymorph of 6,6′-diethoxy-2,2′-[propane-1,2-diylbis(nitrilomethylidyne)]diphenol
The title Schiff base compound, C(21)H(26)N(2)O(4), is a second triclinic polymorph of a previously reported room-temperature structure [Jia (2009 ▶). Acta Cryst. E65, o646]. Strong intra-molecular O-H⋯N hydrogen bonds generate S(6) ring motifs. Inter-molecular C-H⋯O inter-actions link neighbouring mol-ecules into dimers with an R(2) (2)(16) ring motif. The mean planes of the two benzene rings ...
متن کامل6,6′-Dimethoxy-2,2′-[2,2-dimethylpropane-1,3-diylbis(nitrilomethylidyne)]diphenol
The title Schiff base compound, C(21)H(26)N(2)O(4), exhibits two crystallographically independent mol-ecules in the asymmetric unit with similar conformations. The imino groups are coplanar with the benzene rings; the maximum deviations of the N atoms from the planes comprising the benzene rings and the imino groups are -0.037 (4), 0.013 (4), -0.021 (5), and 0.008 (5) Å. The dihedral angles bet...
متن کامل{μ-6,6′-Dimethoxy-2,2′-[propane-1,3-diylbis(nitrilomethylidyne)]diphenolato}trinitratocopper(II)europium(III)
In the title complex, [CuEu(C(19)H(20)N(2)O(4))(NO(3))(3)], the Cu(II) ion is four-coordinated in a square-planar geometry by two O atoms and two N atoms of the deprotonated Schiff base. The Eu(III) atom is ten-coordinate, chelated by three nitrate groups and linked to the four O atoms of the deprotonated Schiff base.
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عنوان ژورنال:
دوره 66 شماره
صفحات -
تاریخ انتشار 2010