| In recent years, the most important subjects of intensively currentresearch in coordination chemistry, supramolecular chemistry and crystalengineering have focused on building novel metal-organic supramolecularcompounds through metal-ligand coordination and intermolecularinteractions (hydrogen bonds,π—πstacking, etc.) between ligands.Design and synthesis of polynuclear, 3d-4f heterometallic and helicalmetal-organic supramolecular complexes with novel topologicalstructures or special properties are of great interest at present, due totheir ability to impart nonlinear optical, electro-chemicals, magnetics,catalysts, molecular devices, highly selective and specific moleculartransformations, transport, and storage and polymorphism.The aim of this thesis is the synthesis of new metal-organiccoordination polymers on the basis of organic aroma multi-carboxylateligands, which are "decorated" by various organic N-donor ligands. Thestudy on synthetic conditions and rules for these compounds are alsocarried out. Seven new metal-organic coordination polymers and threenovel organic ligands compounds have been synthesized on the basis ofhydrothermal technique and structurally characterized by elementalanalyses, IR, ,TG and single crystal X-ray diffractions. The thermalstabilities, fluorescent properties of these compounds have been studied.1. One new metal-organic coordination polymer has beenhydrothermally synthesized by the introduction of 1,2,4,5-H4btc andstructurally characterized: Co2[2-(2'-Pyridyl)benzimidazole]2(btec).2H2O (1)Compound (1) represents a new infinite 1-D chain architecture constructed from btec ligands.2. Seven new metal-organic coordination polymers have beenhydrothermally synthesized on the basis of phthalic acid(BDC) and theintroduction of different N-donors. The crystal structures have beencharacterized: [Eu3(BDC)3(phen)3Cl(H2O)6] CL2·4H2O (2) [Tb2(BDC)3(2,2-bpy).5/2 (H2O)]n (3) Eu2(BDC)2(HBDC)2(phen)(H2O)4 (4) Tb2(BDC)2(HBDC)2(phen)4(H2O) (5) Dy2(BDC)2(HBDC)2(phen)4(H2O) (6) Sm2(BDC)2(HBDC)2(phen)4(H2O) (7) Gd2(BDC)2(HBDC)2(phen)4(H2O) (8)Compound (2) has novel water cluster structure. Compound (3) is anovel coordination compound. Compounds (4)～(8) have the same crystalstructure.3.Three novel organic ligand compounds have been synthesized onbasis of 1,2,4,5-H4btc for absent of the metal coordination underhydrothermal condition. (H3btc)-. (phenH)+ (9) (H3btc)-.2 (H3btc)-.3 (phenH)+.3(H2O) (10) (H2btc)2-. 2(phenH)+. (H4btc) (11)...
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