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Assembly,Characterization And Properties Study Of Metal Coordination Polymers Bridged By Schiff Base Derived From Pyridine-3(4)-carboxal-dehyde And 4-Aminoantipyrine Or By Drug Chiniofon Ligand

Posted on:2005-08-18Degree:MasterType:Thesis
Country:ChinaCandidate:X W WangFull Text:PDF
GTID:2121360125965080Subject:Inorganic Chemistry
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I. Two neutral one-dimensional coordination polymers bridged by drug Chiniofon. [C9H10IN3O4SZn]n (1),[C14H12CoIN2O6S] n (2) were assembled under hydro(solv)thermal conditions between the drug chiniofon with Co(ClO4)2·6H2O and ZnClO4·6H2O respectively. The results of X-ray crystallographic analysis indicate that in complex 1 the central zinc atom is five-coordinated with triangle bipyramid geometry and P21/n space group; and the central cobalt atom is six-coordinated with octahedron geometry and P21/c space group in compound 2.One-Dimensional infinite-chain of complex 1 formed through chiniofon linking.In complex 2 two deprotonated inversion-related chiniofon ligands and two Co(II) atoms form a cage-like dimer and the cage-like dimer is bidged by 4,4-bpy to generate one-dimensional coordination polymer. There are abuntant hydrogen bonds in two complexes, and three-dimensional networks are formed through hydrogen bonds. II. Two nevol 2D layered coordination polymers. [C9H9NO6SMn]2n(3),[C9H9NO6SCo]2n(4) were synthesized by hydro(solv)thermal treatments between the drug chiniofon with MnCl2·4H2O and Co(ClO4)2·6H2O respectively. The results of X-ray crystallographic analysis indicate that the two complexes are isomorphous and belong to Orthorhombic crystal system with Pbca space group.The central metals was six-coordinated with octahedron geometry. The Iodin atom of chiniofon have been removed and neutral two-dimensional layered coordination polymers are formed through deprotonated 8-hydroxylquinoline-5-sulfonic acid ligand bridging.The supramolecular structures are generated through intermolecular hydrogen bonds. Variable temperature magnetic susceptibility measurements reveal that the presence of a ferromagnetic interaction between the Mn(II) centers in complex 3 and the presence of an antiferromagnetic interaction between the Fe(II) centers in complex 4.III. The novel rare earth Gd(III),Er(III) coordination polymers. [C24H33GdN3O16S2]n(5),[C18H13ErI2N2O10S2]2n(6) were assembled under hydro(solv) thermal conditions between the drug chiniofon with Gd(ClO4)3·6H2O and Er(ClO4)3·6H2O respectively. The results of X-ray crystallographic analysis indicate that the two complexes have same space group P-1. The central metals of two complexes are eight-coordinated with capped square antiprism geometry. The pyridine N atoms of 4,4-bpy have been attached by methyls in complex 5; the Iodin atom of chiniofon has been removed;and the deprotonated inversion-related 8-hydroxylquinoline-5-sulfonic acid ligands and two Gd(III) atoms form a cage-like dimer and the anionic one-dimensional structure is formed through the deprotonated 8-hydroxylquinoline-5-sulfonic acid ligand bridging.In complex 6,the sulfonic group acts as bidentate ligand through its two O atoms linking two adjacent Er(III) ions to form dinuclear building block and two inversion-related chiniofon ligands and two Er(III) atoms form a cage-like dimer; the two-dimensional coordination polymer is generated through such dimers and cage-like dimers infinitely linking. There exist abuntant hydrogen bonds in two complexes and three-dimensional supramolecular structure formed through hydrogen bonds bounding.IV. Two dinuclear dimer compouds. [C18H20Cu2I2N2O14S2] (7) and [C18H22I2N2 O15S2Zn2] (8) were synthesized by hydro(solv)thermal treatments between the drug chiniofon with Cu(NO3)2·3H2O and Zn(Ac)2·2H2O respectively. The results of X-ray crystallographic analysis indicate that in complex 7 Cu atoms is five-coordinated with square pyramid geometry, and two deprotonated inversion-related chiniofon ligands and two Cu(II) atoms form a cage-like dimer. The complex 8 is two independent dimers; two deprotonated inversion-related chiniofon ligands coordinate to two Zinc atoms forming a cage-like dimer; the Zinc atoms are six-coordinated with octahedron geometry. Three-dimensional structure are formed through hydrogen bonds interaction.V. Synthesis of Schiff base derived from pyridine-2-carboxaldehyde and 2-aminobenzothiazole and its Cu(I...
Keywords/Search Tags:Pyridine-3(4)-carboxal-dehyde
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