波谱学杂志 ›› 1989, Vol. 6 ›› Issue (4): 509-512.

• 研究论文 • 上一篇    下一篇

核磁共振研究二烷氧基膦酰乙酸异丙脂与硝酸镧配合的机理

陈朝环, 史丽萍, 叶伟贞, 严金英   

  1. 中国科学院上海有机化学研究所
  • 收稿日期:1988-10-25 修回日期:1989-01-10 出版日期:1989-12-05 发布日期:2018-01-22
  • 基金资助:
    国家自然科学基金资助

THE MECHANISM OF COORDINATION OF ISOPROPYL (DIALKOXY PHOSPHOROYL) ACETATE WITH LANTHANUM NITRATE BY NMR STUDY

Chen Chaohuan, Shi Liping, Ye Weizhun, Yan Jinying   

  1. Shanghai Institute of Organic Chemistry, Academica Sinica, Shanghai
  • Received:1988-10-25 Revised:1989-01-10 Online:1989-12-05 Published:2018-01-22

摘要: 本文研究La(NO3)3与二异丙氧基膦酰乙酸异丙酯(I)和二丁氧基膦酰乙酸异丙酯(Ⅱ)的配合机理.研究表明在配合物I中La3+离子配位在胱酰基(P=O)和羰基(C=O)上.并测得的其配合常数K为0.4,而配合物Ⅱ配位在P=O上,其配合常数K为0.04.

关键词: 二烷氧基膦酰乙酸异内酯, 配合常数, 核磁共振波谱

Abstract: The mechanism of coordination of isopropyl (diisopropoxy phosphoroyl) acetate (Ⅰ) and isopropyi (dibutoxy phosphoroyl) acetate (Ⅱ) with lanthanum nitrate has been investigated. Results show that the La3+ ion coordinates at P=O and C=O for the coordination compound Ⅰ and at P=O for the Ⅱ. Their coordination constants K were determined in CDCl3 solvent, they are K=0.4 for Ⅰ and K=0.04 for Ⅱ.

Key words: Tsopropyl (dialkoxy phosphoroyl) acetate, Coordination, Constant, NMR