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2,2'-[1,1'-(Ethyl-enedioxy-dinitrilo)diethyl-idyne]di-1-naphthol.

ABSTRACT: The complete molecule of the title compound, C(26)H(24)N(2)O(4), is generated by a crystallographic centre of inversion. There are two intra-molecular O-H?N hydrogen bonds. In the crystal structure, inter-molecular C-H?O hydrogen bonds result in zigzag chains.

SUBMITTER: Dong WK

PROVIDER: S-EPMC2969397 | biostudies-literature | 2009 Jun

REPOSITORIES: biostudies-literature

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2,2'-[1,1'-(Ethyl-enedioxy-dinitrilo)diethyl-idyne]di-1-naphthol.

Dong Wen-Kui WK Wu Jian-Chao JC Yao Jian J Li Li L Gong Shang-Sheng SS

Acta crystallographica. Section E, Structure reports online 20090617 Pt 7

The complete molecule of the title compound, C(26)H(24)N(2)O(4), is generated by a crystallographic centre of inversion. There are two intra-molecular O-H⋯N hydrogen bonds. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds result in zigzag chains. ...[more]

PMID: 21582872

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{2,2'-[1,1'-(Ethyl-enedioxy-dinitrilo)diethyl-idyne]di-1-naphtholato}copper(II).

Project description:The title complex, [Cu(C(26)H(22)N(2)O(4))], is isostructural with its Ni analogue. All intramolecular distances and angles are very similar for the two structures, whereas the packing of the molecules, including C-H?O and C-H?? interactions, are slightly different.

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{2,2'-[1,1'-(Ethyl-enedioxy-dinitrilo)diethyl-idyne]di-1-naphtholato}nickel(II).

Project description:In the title complex, [Ni(C(26)H(22)N(2)O(4))], the Ni(II) atom has a slight distortion toward tetra-hedral geometry from a square-planar structure, coordinated by two O and two N atoms of the tetra-dentate salen-type bis-oxime 2,2'-[1,1'-(ethyl-enedioxy-dinitrilo)diethyl-idyne]di-1-naphtholate (L(2-)) unit, with a mean deviation of 0.022?Å from the N(2)O(2) plane. The N- and O-donor atoms are mutually cis. The dihedral angle between two naphthalene systems of the L(2-) ligand is 67.59?(4)°. The crystal structure is stabilized by inter-molecular C-H?O and C-H?? inter-actions, which link neighbouring mol-ecules into extended chains along the b axis.

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2,2'-[1,1'-(Propane-1,3-diyldioxy-dinitrilo)diethyl-idyne]di-1-naphthol.

Project description:The mol-ecule of the title compound, C(27)H(26)N(2)O(4), lies across a crystallographic inversion centre and adopts an l-shaped configuration. Within the mol-ecule, the two naphthalene units are approximately perpendicular, making a dihedral angle of 80.24?(5)°. The two intramolecular O-H?N hydrogen bonds, generate S(6) ring motifs. In the crystal structure, every mol-ecule links five other mol-ecules into an infinite cross-linked layered supra-molecular structure via inter-molecular C-H?O hydrogen bonds, C-H?? inter-actions and ?-? stacking inter-actions [centroid-centroid distance = 3.956?(4)?Å].

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2,2'-[1,1'-(Heptane-1,7-diyldioxy-dinitrilo)diethyl-idyne]di-1-naphthol.

Project description:The mol-ecule of the title compound, C(31)H(34)N(2)O(4), adopts an L-shaped configuration, in which the naphthalene units are approximately perpendicular, making a dihedral angle of 87.89?(3)°. Intramolecular H-bonds are formed between the OH substituents and the N atoms at each end of the molecule. In the crystal structure, each mol-ecule links six other mol-ecules into an infinite three-dimensional network supra-molecular structure, which is built from one-dimensional zigzag chains via weak C-H?? stacking and inter-molecular C-H?O hydrogen bonds.

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Project description:The title compound, C(19)H(22)N(2)O(4), was synthesized by the reaction of 2'-hydroxy-acetophenone with 1,3-bis-(amino-oxy)propane in ethanol. Intra-molecular O-H?N and weak C-H?O hydrogen bonds stabilize the three-dimensional structure. A twofold rotation axis passes through the molecule.

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Project description:The molecule of the title compound, C(22)H(28)N(2)O(2), lies across an inversion centre with one half-mol-ecule in the asymmetric unit. The mol-ecule adopts an E configuration with respect to the azomethine C=N bond and the imino group is coplanar with the aromatic ring. Within the mol-ecule, the planar units are parallel, but extend in opposite directions from the hexa-methyl-ene bridge. There are intra-molecular O-H?N hydrogen bonds between the hydroxyl groups and the oxime N atoms. There are also weak inter-molecular C-H?O bonds that link each mol-ecule to two others, forming chains along the a axis.

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Project description:The title compound, C(24)H(32)N(2)O(4), has a crystallographic inversion centre at the mid-point of the central C-C bond. At each end of the mol-ecule, intra-molecular O-H?N hydrogen bonds generate six-membered S(6) ring motifs. The crystal structure is stabilized by pairs of weak inter-molecular C-H?O hydrogen bonds that link neighbouring mol-ecules into R(2) (2)(40) ring motifs, which in turn form infinite one-dimensional supra-molecular ribbon structures.

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{2,2'-[1,1'-(3-Aza-pentane-1,5-diyl-dinitrilo)diethyl-idyne]diphenolato}(piperidine)cobalt(III) tetra-phenyl-borate.

Project description:The title compound, [Co(C(20)H(23)N(3)O(2))(C(5)H(11)N)](C(24)H(20)B) or [Co{(Me-sal)(2)dien}(pprdn)]BPh(4), where (Me-sal)(2)dien is 2,2'-[1,1'-(3-aza-pentane-1,5-diyldinitrilo)diethyl-idyne]diphenolate and pprdn is piperidine, contains a penta-dentate (Me-sal)(2)dien ligand furnishing an N(3)O(2) set, such that two of the N and one of the O atoms of the salicyl-idene rings define three positions of an equatorial plane, whereas the secondary amine N atom and the other O atom of the salicyl-idene lie in axial positions. The piperidine ligand occupies an equatorial position trans to one of the imine N atoms of the salicyl-idene. In the observed conformation of the penta-dentate ligand, the salicyl-idene rings attain asymmetrical positions owing to the structural demands. The geometry of the resulting CoN(4)O(2) coordination can be described as distorted octa-hedral. The asymetric unit contains two formula units.

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4,4'-Dimethyl-1,1'-[ethyl-enedioxy-bis(nitrilo-methyl-idyne)]dibenzene.

Project description:The Schiff base, C(18)H(20)N(2)O(2), which lies about an inversion centre, adopts a linear conformation. The mol-ecules are packed by C-H⋯π inter-actions, forming a two-dimensional supra-molecular network.

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