化学学报 ›› 1992, Vol. 50 ›› Issue (5): 488-491. 上一篇    下一篇

研究论文

有机硒化合物的^7^7Se NMR研究

张秋禹;严宝珍;李朴;师树简;徐广智   

  1. 北京化工学院应用化学系;中国科学院化学研究所
  • 发布日期:1992-05-15

Studies on ^7^7Se NMR of organic selenium compounds

ZHANG QIUYU;YAN BAOZHEN;LI PU;SHI SHUJIAN;XU GUANGZHI   

  • Published:1992-05-15

本文测定了一系列二茂铁有机硒衍生物及几种烷基硒醚、芳基硒醚化合物的^7^7Se NMR谱。确定了这些化合物的^7^7Se NMR化学位移值。着重讨论了影响^7^7Se化学位移的因素。与硒直接相连取代基的链长、支链化程度以及吸电子能力的改变对^7^7Se NMR化学位移有着不同程度的影响。除此之外, 溶剂效应对二茂铁有机硒类化合物的^7^7Se NMR化学位移也有一定程度的影响。

关键词: 核磁共振谱法, 硒同位素, 溶剂效应, 化学位移, 有机硒化合物, 二茂铁 P, 烷基硒醚, 芳基硒醚

The 77Se NMR spectra of a series of ferrocenyl selenium derivatives, e.g., I, several alkyl seleno ethers and aryl seleno ethers are reported and the chem. shift of 77Se in these compounds were obtained. Particular emphasis is drawn to factors influencing the 77Se NMR chem. shift. The chain length, degree of branching and electron withdrawing ability of substituents directly bound to Se influence the chem. shift of Se. In addition the 77Se chem. shift of ferrocenyl selenium compounds is also influenced by the solvent.

Key words: NMR SPECTROMETRY, SELENIUM ISOTOPES, SOLVENT EFFECT, CHEMICAL SHIFT, ORGANO SELENIUM COMPOUNDS, FERROCENE P

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