新型含芳香核柔性双咪唑配体及其配合物的合成与结构表征

Preparation and characterization of new flexible bis-imidazole ligand with aryl core and its complex

基于含氮杂环配体的金属配位聚合物的独特性能,以取代位置不同的苯二酚、萘二酚、萘醌和蒽醌为起始原料,与1,2-二溴乙烷反应生成芳烃的双溴取代物,然后再与咪唑在碱性条件下发生取代反应,合成得到六种含芳香环的双咪唑类配体(Ⅰ—Ⅵ).结果表明,所有产物的结构均经熔点、IR、1H NMR和元素分析表征,所得数据与结构完全吻合,并对配体Ⅲ与Zn(NO3)2.6 H2O形成的配位聚合物晶体结构进行了测定.

Based on the unique properties of coordinated polymers formed by the coordination between metal and nitrogen heterocycle ligand, six bis-imidazole ligands （Ⅰ-Ⅵ） containing benzene, naphthalene or anthracene were synthesized using hydroquinone, resorcinol, naphthalene-1, 4-dione, naphthalene-1, 5-diol, anthracene-9,10-dione or anthracene-1, 4-dione as starting materials. All the products were confirmed by melting point, IR, ^1H NMR and element analysis. It provided a premise to study the effect of aryl system on the properties of coordinated complex. A novel metal-organic framework supermolecule formed by the reaction between ligand Ill and Zn-（NO3）2·6H2O. Its structure was characterized by IR, TG-DSC analysis and X-ray single crystal diffraction.