物理化学学报 >> 2002, Vol. 18 >> Issue (06): 563-566.doi: 10.3866/PKU.WHXB20020619

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钴（Ⅱ）与2,2’-联吡啶-1,1’-二氧化物的多核配合物的合成和性质

傅铁祥;曹军;汤跃群;黄道昌;李和平   

  1. 长沙电力学院化学系, 长沙　410077
  • 收稿日期:2001-11-02 修回日期:2002-01-15 发布日期:2002-06-15
  • 通讯作者:

Synthesis and Properties of Polynuclear Complex of Co（Ⅱ） with 2,2’-bipyridine-1,1’-Dioxide

Fu Tie-Xiang;Cao Jun;Tang Yue-Qun;Huang Dao-Chang;Li He-Ping   

  1. Chemistry Department, Changsha University of Electric Power, Changsha　410077
  • Received:2001-11-02 Revised:2002-01-15 Published:2002-06-15
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摘要： 以无水CoCl2和2,2’-联吡啶-1,1’-二氧化物为原料,在DMF溶剂中合成了一种多核配合物.经元素分析、紫外光谱、红外光谱和摩尔电导等方法测得它的组成为[Co3(bipyO2)4Cl4]Cl2,并对该配合物的气敏特性进行了研究. 结果表明, 该配合物对氨气有良好的敏感性和选择性.由它制作的传感器可望用于涉氨化工生产中氨浓度的自动测量和控制.

关键词: 合成, 传感器, 二氯化钴, 多核配合物, 2,2’-联吡啶-1,1’-二氧化物

Abstract: A polynuclear complex was synthesized by the reaction of CoCl2 with 2,2’-bipyridine-1,1’-dioxide in DMF solution. Elemental analysis, IR, UV and molar conductivity measurements indicated the composition of the complex corresponding to the formula [Co3(bipyO2)4Cl4]Cl2.Study of the properties showed that the complex has good sensitivity and selectivity for ammonia. The output voltage of sensor produced by the complex responses non-linearly to the change of ammonia concentration in the range of 3.0×10－5～1.2×10－4 mol•L－1,but linear response was found in the range of 1.4×10－4～1.3×10－3 mol•L－1.The sensor manufactured by the complex could be used to detect and control the concentration of NH3 in production.

Key words: Synthesis, Sensor, Cobalt chloride, Polynuclear complex, 2,2’-bipyridine-1,1’-dioxide