Poly[(μ-3,5-dinitro-2-oxidobenzoato)(μ-3-hydroxypyridine)copper(II)]
نویسندگان
چکیده
A new coordination polymer, [Cu(C(7)H(2)N(2)O(7))(C(5)H(5)NO)](n), exhibits a double-chain structure, in which 3,5-dinitro-2-oxidobenzoate and 3-hydroxy-pyridine both act as bridging ligands, -connecting adjacent copper(II) centers to form an infinite double-stranded chain. The asymmetric unit contains one Cu(II) ion, one 3,5-dinitro-2-oxidobenzoate ligand and a 3-hydroxy-pyridine ligand. Coordination by one N atom and three O atoms from two different 3,5-dinitro-2-oxidobenzoate ligands and a 3-hydroxy-pyridine ligand creates a square-planar Cu(II) center, which is augmented by a less tightly bonded fifth phenol O atom to form a square-pyramidal five-coordinate complex with an essentially planar base. The double-stranded chains are stabilized by intra-chain π-π inter-actions [the centroid-to-centroid distance between adjacent aromatic rings is 3.719 (7) Å], and further linked through O-H⋯O hydrogen bonds, forming a three-dimensional supra-molecular network.
منابع مشابه
catena-Poly[[[diaquacobalt(II)]-μ-(3,5-dinitro-2-oxidobenzoato)-κ3 O 1,O 2:O 1′-[tetraaquacobalt(II)]-μ-(3,5-dinitro-2-oxidobenzoato)-κ3 O 1:O 1′,O 2] dihydrate]
In polymeric title compound, {[Co(2)(C(7)H(2)N(2)O(7))(2)(H(2)O)(6)]·2H(2)O}(n), obtained from the reaction of 3,5-dinitro-salicylic acid with cobalt(II) acetate, both Co(II) atoms are located on inversion centres and exhibit a distorted octahedral coordination geometry. The coordin-ation sphere about one Co(II) atom comprises four O-atom donors from two bidentate chelate (O(phenolate) and O(ca...
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In the title compound, [Co(2)(C(7)H(2)N(2)O(7))(2)(C(19)H(12)N(4))(2)(H(2)O)(2)], the Co(II) atom is six-coordinated by two N atoms from a 2-phenyl-1H-1,3,7,8,-tetraaza-cyclo-penta-[l]phenanthrene (L) ligand, three O atoms from two 3,5-dinitro-2-oxidobenzoate (3,5-dinitro-salicylate or DNSA) ligands and one O atom from a water mol-ecule in a distorted octa-hedral geometry. The Co(II) atoms are ...
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