Chin. J. Org. Chem. ›› 1992, Vol. 12 ›› Issue (4): 378-381. Previous Articles     Next Articles

Original Articles

查尔酮共轭体系紫外光谱的取代基效应

陆荣健;钟琦   

  1. 扬州师范学院化学系
  • 发布日期:1992-08-25

Substituent effect on the UV spectra of chalcone conjugated systems

LU RONGJIAN;ZHONG QI   

  • Published:1992-08-25

Substituent constants (a) of chalcone conjugated compounds [I; R = H, m-NO2, p-Br, p-Ph; X = H, Me, MeO, Cl, NO2] were determine and showed a linear relationship with lmax. A linear relationship was also observed between the log of rate constants and Hammett reaction constant s with g > 0.98.

Key words: SUBSTITUENT EFFECT, ULTRAVIOLET SPECTROPHOTOMETRY, CHALCONE, PENTADIENONE P

CLC Number: