Acta Chimica Sinica ›› 1996, Vol. 54 ›› Issue (8): 734-741. Previous Articles     Next Articles

Original Articles

溶致变色法测算线型有机汞化合物的分子二阶极化率(β)

张孝义;吴向东;秦金贵;刘道玉   

  1. 武汉大学化学系
  • 发布日期:1996-08-15

Solvatochromic method for determination of the second order molecular susceptibility, β, of linear organomercury compounds

ZHANG XIAOYI;WU XIANGDONG;QIN JINGUI;LIU DAOYU   

  • Published:1996-08-15

The second order molecular susceptibility, β, of twelve arylmercuric nitrophenylacetylides which possess a linear molecular configuration has been determined with solvatochromism technique to be in the order of 10^-^2^9esu. There is no close relationship between the electronic property of the substituent (D) and the value of β, indicating that an effective intramolecular charge-transfer from D to nitro group does not exist. λmax of all the compounds in electronic spectra are in the range of 310±7nm, which are over 60nm shorter than those of some other conjugated organic molecules which possess similar β value. The condition and limitation of using this technique to determine β of organometallic molecules are discussed.

Key words: ULTRAVIOLET SPECTROPHOTOMETRY, INFRARED SPECTROPHOTOMETRY, ELEMENTAL ANALYSIS, MASS SPECTROGRAPHY, NMR SPECTROMETRY, NITROBENZENE P, PHENYL ACETYLENE, POLARIZABILITIES, ORGANO-MERCURIC COMPOUND

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