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固相配位化学反应研究——ⅩⅩⅩⅨ.四氰合镍酸钾与固体有机酸在室温下的固相反应
Solid State Reactions of Coordination Compounds ⅩⅩⅩⅨ.The Solid State Reactions Between K2[Ni(CN)4]·H2O and Some Organic Acids at Room Temperature
【摘要】 本文用红外、紫外可见漫反射、X 射线粉末衍射和四极质谱等实验手段,研究了四氰合镍酸钾一水合物与草酸、丙二酸、反丁烯二酸、丁二酸、己二酸的固相反应,发现 K2[Ni(CN)4]·H2O 与一些固体酸在室温下就发生反应,生成 Ni(CN)2·xH2O,并放出 HCN 气体.由产物与反应物相对含量大小,得到固体有机酸的酸性强弱顺序为:草酸二水合物>丙二酸>反丁烯二酸>丁二酸>己二酸。讨论了可能的反应机制.
【Abstract】 In this paper,the solid state reactions between potassium tetracyanonickelate(Ⅱ)and oxalic,malonic,fumaric,succinic,adipio acid are studied,followed by moderntechniques such as IR,DRS,XRD and MS.It is found that the reactions occur at roomtemperature.Ni(CN)2·xH2O is obtained as a main product and HCN gas is detected.The acidity of these solid organic acids decreases in the order:oxalic>malonic>fumaric>succtnic>adipic acid.Proton is believed to play an important role in thereaction process.And the possible mechanism is discussed.
- 【文献出处】 化学学报 ,Acta Chimica Sinica , 编辑部邮箱 ,1991年12期
- 【被引频次】1
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