应用化学 ›› 1988, Vol. 0 ›› Issue (5): 10-15.

• 研究论文 • 上一篇    下一篇

固相配位化学反应研究 ⅩⅩⅣ.一取代基五氰合铁(Ⅱ)类配合物热分解的质谱研究

谢玉明, 忻新泉, 戴安邦   

  1. 南京大学配位化学研究所
  • 收稿日期:1987-08-18 修回日期:1987-11-23 出版日期:1988-10-10 发布日期:1988-10-10
  • 基金资助:
    联合国教科文组织资助项目;国家自然科学基金

STUDIES ON THE SOLID STATE REACTION OF COORDINATION COMPOUNDS——ⅩⅩⅣ.MASS SPECTROMETRIC INVESTIGATION OF THERMAL DECOMPOSITION OF PENTACYANOFERRATE(Ⅱ)COMPLEXES

Xie yuming, Xin Xinquan, Dai Anbang   

  1. Coordination Chemistry Research Institute, Nanjing University
  • Received:1987-08-18 Revised:1987-11-23 Published:1988-10-10 Online:1988-10-10

摘要: 以四极质谱法为主要手段研究了一取代基五氰合铁(Ⅱ)类配合物在真空中的热分解,结合穆斯堡尔谱结果研究了固相物的化学组成,阐明了配合物的热分解机制,并发现配合物的热稳定性顺序与取代基团的光谱化学序列一致.对该类配合物的热分解动力学研究表明,分解活化能与分解峰值温度之间存在线性关系.

关键词: 四极质谱法, 穆斯堡尔谱, 一取代五氰合铁配合物, 热分解, 热分解动力学

Abstract: The thermal decomposition of pentacyanoferratecomplexes Nax[Fe(CN)5L]·yH2O (L=NO+,N2H5+,enH+,NH3,H2O,pyridine,SO3)in vacuum has been investigated by quadrupole mass spectrometry as well as Mössbauer spectroscopy to detect the intermediate solid products during the decomposition.The mechanism of thermal decomposition is elucidated and it is found that the thermal stability of these complexes was ordered in accordance with the spectrochemieal series.Kinetic study on the decomposition showed that there is a linear relationship between the decomposition activation energies and the temperatures at which the ligand L lost.

Key words: Quadrupole mass spectrometry, Mössbauer spectroscopy, Pentacyanoferrate(Ⅱ)complexes, Thermal decomposition, Thermal decomposition kinetics