波谱学杂志 ›› 1994, Vol. 11 ›› Issue (2): 207-210.

• 研究论文 • 上一篇    下一篇

过渡金属氢化物和聚集双键化合物反应的研究Ⅲ.用ESR方法考察二茂锆氢化物与RNCS的反应机理

王梅, 贝浼智, 郭和夫   

  1. 中国科学院大连化学物理研究所, 大连 116023
  • 收稿日期:1993-02-01 出版日期:1994-06-05 发布日期:2018-01-20

STUDIES ON REACTIONS OF TRANSITION-METAL HYDRIDES WITH TETEROCUMULENES Ⅲ. An ESR Evidenee for Paramagnatic Zirconium Species Generated during the Reaction of Cp2Zr(H)Cl with RNCS

Wang Mei, Bei Meizhi, Guo Hefu   

  1. Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023
  • Received:1993-02-01 Online:1994-06-05 Published:2018-01-20

摘要: 本文用ESR方法考察了Cp2ZrH) Cl与RNCSR=C6H5,c-C6H11,n-C4H9)的反应的过程,结果表明,在这类反应过程中,Zr-H键发生均裂,中心金属锆经过+4-→+3-→+4的价态变化,反应通过自由基机理进行.

关键词: 锆氢化合物, 异硫氰酸酯, 自由基机理

Abstract: The reaction process of Cp2Zr(H)Cl with RNCS (R=C6H5,c-C6H11,n-C4H9) has been detected by ESR method. The ESR results show that in the process the Zr-H bond deaved homolytically and a transient Zr(Ⅲ)species is formed. The reactions oeeurred via a radical mechanism.

Key words: Zirconium hydride complex, Isothiocyanates, Radical mechanism