Correlation between Hammett substituent constants and directly calculated π-conjugation strength

被引:92
作者
Fernández, I [1 ]
Frenking, G [1 ]
机构
[1] Univ Marburg, Fachbereich Chem, D-35043 Marburg, Germany
关键词
D O I
10.1021/jo052012e
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] The results of an energy decomposition analysis of ortho-, meta-, and para-substituted benzylic cations and para-substituted benzylic anions H2C-C6H4Rq (R = H, F, CN, Me, OH, NH2, NO2, CHO, CO2H; q = +, -) are presented and discussed. The calculated values for the pi bonding between CH2q and C6H4R show for substituents which have pi orbitals a linear correlation with the Hammett sigma(p), sigma(+)(p), and sigma(m) constants.
引用
收藏
页码:2251 / 2256
页数:6
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