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1 INTRODUCTION With deep studies on the complex biology system and syntheses of new functional complexes, people have paid more and more attention to the polynuclear complexes. In the construction of one to three dimensional frameworks, multi-dentate ligands are usually used to bridge the metal centers to form polymeric structures[1, 2]. The isonicotinic acid N-oxide can function as a good mono-dentate ligand[3~8] through one oxygen atom from the group of -NO or carboxyl, and the dep… 相似文献
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