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三维超分子配合物[Co_2(Dpq)_2(btec)(H_2O)_6]·2H_2O的水热合成、晶体结构和电化学性质 被引量:5
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作者 林宏艳 王秀丽 刘国成 《应用化学》 CAS CSCD 北大核心 2009年第10期1216-1221,共6页
以1,2,4,5-均苯四羧酸(btec)和二-吡啶-(3,2-d:2,3′-f)-二氮萘(Dpq)为混合配体,水热合成了一种三维超分子配合物:[Co2(Dpq)2(btec)(H2O)6].2H2O,并通过元素分析、红外光谱、热重分析和X射线衍射测试技术对其结构进行了表征。晶体结构... 以1,2,4,5-均苯四羧酸(btec)和二-吡啶-(3,2-d:2,3′-f)-二氮萘(Dpq)为混合配体,水热合成了一种三维超分子配合物:[Co2(Dpq)2(btec)(H2O)6].2H2O,并通过元素分析、红外光谱、热重分析和X射线衍射测试技术对其结构进行了表征。晶体结构解析结果表明,该配合物属单斜晶系,P21/c空间群,晶胞参数为:a=0.8978(5)nm,b=2.9822(16)nm,c=0.7058(4)nm,β=94.199(6)°,V=1.8848(18)nm3,Z=2,R1=0.0350,wR2=0.0796。该化合物由1,2,4,5-均苯四羧酸中羧基氧原子、二-吡啶-(3,2-d:2,3′-f)-二氮萘的螯合氮原子及水分子中氧原子与中心Co(Ⅱ)离子配位,形成六配位的扭曲八面体几何构型。羧酸作为桥连配体连接2个相邻的中心Co(Ⅱ)离子形成钴配合物的双核单元,双核单元之间通过氢键及π-π堆积作用相互连接构成三维超分子网状结构。电化学实验结果表明,钴配合物修饰碳糊电极(Co-CPE)在0.1mol/L乙酸-乙酸钠缓冲溶液中电位范围+600~-300mV内有1对归属于Co(Ⅱ)/Co(Ⅲ)的氧化还原峰,而且此修饰电极对亚硝酸根的氧化有很好的电催化效果。 展开更多
关键词 水热合成 钴配合物 晶体结构 超分子网络 电化学性质
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Hydrothermal Synthesis and Crystal Structure of Manganese(Ⅱ) Coordination Polymer Assembled by 4-Sulfophthalate and 4,4′-Bipyridine 被引量:1
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作者 WANG Qing-wei LI Xiu-mei GAO Guang gang 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2007年第1期105-108,共4页
The rational design and synthesis of metal-directed supramolecular framework compounds have received much attention in coordination chemistry because of their potential applications in catalysis, molecular selection, ... The rational design and synthesis of metal-directed supramolecular framework compounds have received much attention in coordination chemistry because of their potential applications in catalysis, molecular selection, nonlinear optics, ion exchange, and microelectronics. Many high-dimensional coordination complexes have been designed and prepared through molecular self-assembly processes. The open metal organic framework can be produced via two kinds of interactions, i. e. , coordinate covalent bonds and weaker intermolecular forces. For this reason, the most efficient means to synthesize these compounds is to establish possible connections among different units. 展开更多
关键词 Hydrothermal synthesis Crystal structure supramoleeular network Mixed ligand
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