化学学报 ›› 1990, Vol. 48 ›› Issue (2): 127-131. 上一篇    下一篇

研究论文

银配合物与联氨定向反应的研究I

夏式均;程德平   

  1. 杭州大学化学系
  • 发布日期:1990-02-15

Studies on the directional reaction of silver coordination compound with hydrazine I

XIA SHIJUN;CHENG DEPING   

  • Published:1990-02-15

本文研究了银的不同配合物与N2H4的反应, 得出微量的Cu^2^+不仅能加快反应速度, 能有效地促进N2H4按反应(4)进行四电子定向反应的比率, 而且N2H4按四电子定向的反应率随银配合物稳4Ag^+(AgL^q^±2)+N2H4 4Ag+N2+4H^+(8L^{q±(-1)]/2) (4)Ag^+(AgL^q^±2)+N2H4 Ag+1/2N2+NH3+H^+(+2L[q±(-1)]/2) (5)定常数的增大而降低的结论。无Cu^2^+时, N2H4的四电子反应率与银配合物的logβ2成线性关系; Cu^2^+存在时, N2H4单电子反应率的对数与1/logβ2呈线性关系。

关键词: 铜, 稳定常数, 联氨, 银络合物, 定向反应

The reaction of N2H4 with several Ag coordination compounds was studied. A trace amount of Cu(II) ion is an effective catalyst. With an increase of the stability constants (b2) of the Ag coordination compounds, the rate of the 4-electron redox reaction of N2H4 decreases. The rate of the reaction vs. logb2 of the Ag coordination compounds is linear in the absence of Cu(II) ion. In the presence of Cu(II) ion, the logarithm of the rate of the reaction is proportional to 1/logb2.

Key words: COPPER, STABILITY CONSTANT, HYDRAZINE, SILVER COMPLEX, DIRECTIONAL REACTION

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