Synthesis and Gas Sensitive Properties of Mono Complex of 2,2'-bipyridine-1,1'-Dioxide with Chromic Chloride

Fu Tiexiang, Cao Jun, Tang Yuequn, Huang Daochang
(Changsha University of Electric Power, Changsha, 410077)

Abstract The mono complex of 2,2'-bipyridine-1,1'-dioxide with chromic chloride was synthesized. The composition of the complex with the formula [Cr(bipyO₂)Cl₂]Cl was investigated by elemental analysis, IR,UV-vis and molar conductivity.The gas sensitive properties of the complex were also studied. The results indicate that the complex has high sensitivity and selectivity to ammonia. The sensor manufactured by the complex could be used to detect and control NH₃ in the concentration range of 2.0×10^-5~2.6×10^-5mol·L^-1.
Key words Complex, 2,2'-Bipyridine-1,1'-dioxide, Synthesis, Chromic chloride

单分子2,2'-联吡啶-1,1'-二氧化物与Cr(Ⅲ)的配合物的合成和气敏性研究

傅铁祥 曹 军 汤跃群 黄道昌
(长沙电力学院化学系 长沙 410077)

摘要 合成了Cr(Ⅲ)与一分子2,2'-联吡啶-1,1'-二氧化物(bipyO₂)形成的配合物。用元素分析﹑摩尔电导﹑红外光谱和紫外光谱表征了配合物的组成并研究了它的气敏特性。实验结果表明，该配合物的化学式为[Cr(bipyO₂)Cl₂]Cl；对氨气具有良好的敏感性和选择性。用它制作的传感器可用于监控2.0×10^-5～2.6×10^-5mol·L^-1的氨气。
关键词 配合物 2,2'-联吡啶-1,1'-二氧化物 合成 三氯化铬

傅铁祥 男，42岁，副教授，主要从事功能材料研究。
湖南省自然科学基金资助项目(01JJY3010)
2001-10-12收稿，2002-05-20修回