高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (4): 570.

• 研究快报 • 上一篇    下一篇

乙腈介质中S—NO键异裂能和均裂能的测定

吕健明, 朱晓晴, 李倩, 何家骐, 鲜明, 程津培   

  1. 南开大学化学系, 天津 300071
  • 收稿日期:1999-11-08 出版日期:2000-04-24 发布日期:2000-04-24
  • 通讯作者: 程津培(1948年出生),男,博士,教授,博士生导师,从事物理有机化学研究.
  • 基金资助:

    国家自然科学基金(批准号:29832040;29972028);兰州大学应用有机化学国家重点实验室开放基金

Determination of Heterolytic and Homolytic S_NO Bond Dissociation Energies in Acetonitrile

LU Jian-Ming, ZHU Xiao-Qing, LI Qian, HE Jia-Qi, XIAN Ming, CHENG Jin-Pei    

  1. Department of Chemistry, Nankai University, Tianjin 300071, China
  • Received:1999-11-08 Online:2000-04-24 Published:2000-04-24

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关键词: NO亲合势, S-亚硝基化合物, S&mdash, NO键能, 滴定量热法

Abstract: Heterolytic and homolytic S_NO bond dissociation energies are determined in acetonitrile at 25 ℃ by using titration calorimetry and electrochemical measurements with a well-designed thermodynamic cycle. The results suggest that S_NO compounds in vivo may release NOin a manner of homolytic bond dissociation. Other effects that influence the bond energies are also discussed.

Key words: NO affinity, S-Nitroso compound, S_NO bond energy, Titration calorimetry

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