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多吡啶配体2,3二(2吡啶基)5,8二甲氧基喹喔啉(L)与Co(NO3)2.6H2O反应生成配合物[Co(L)(NO3)2].CH3CN,通过单晶衍射分析确证其结构.配合物的单晶结构中,Co(Ⅱ)离子中心分别与配体L的2个吡啶环中的N原子和2个硝基的4个氧原子形成六配位的八面体配位结构,L以双齿配体形式参与配位.配合物通过ππ芳香体系堆积形成一维链状结构,芳香体系的面面叠加作用可能使配合物的结构更加稳定.
The polypyridine ligand 2,3 bis (2pyridyl) 5,8dimethoxyquinoxaline (L) reacted with Co (NO3) 2.6H2O to form the complex [Co (L) (NO3) 2] The structure of the complex was confirmed by single crystal diffraction analysis.The single crystal structure of the complex formed a six-coordinated form of Co (Ⅱ) ion centers with four oxygen atoms of two nitrogen atoms in pyridine ring and two nitrogen atoms in pyridine ring Octahedral coordination structure of L, and ligand L participates in coordination with bidentate ligands.The complex forms a one-dimensional chain structure by the ππ aromatic system, and the complexation of the aromatic system may make the structure of the complex more stable.