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首页|期刊导航|北京师范大学学报:自然科学版|判断取代基相对诱导效应强度的新方法——Ⅰ取代基中与甲基碳原子相连原子不具有不饱和键的情况

判断取代基相对诱导效应强度的新方法——Ⅰ取代基中与甲基碳原子相连原子不具有不饱和键的情况

杨金瑞 母伟花 方德彩 余尚先

北京师范大学学报:自然科学版2011,Vol.47Issue(5):478-481,4.
北京师范大学学报:自然科学版2011,Vol.47Issue(5):478-481,4.

判断取代基相对诱导效应强度的新方法——Ⅰ取代基中与甲基碳原子相连原子不具有不饱和键的情况

NEW METHODS TO IDENTIFY THE INDUCTIVE EFFECT INTENSION OF SUBSTITUENT:(Ⅰ) ATOM BONDED TO THE CARBON OF SUBSTITUTED METHANE WITHOUT UNSATURATED BOND

杨金瑞 1母伟花 1方德彩 1余尚先1

作者信息

  • 1. 北京师范大学化学学院,北京100875
  • 折叠

摘要

Abstract

Using mono-substituted methane CH_3R(R is substituent) as model,difference in chemical shift of carbon between CH_3R and CH_4 Δδ was calculated based on experimental data,difference in net charge of carbon between CH_3R and CH_4 ΔQ was acquired through quantum chemical calculations.Δδ and ΔQ was used to identify inductive effect intension of substituent relative to Hatom.Correlation relationship between Δδ and ΔQ was good when atom bonded to carbon atom of substituted methane had no unsaturated bond.It is concluded that Δδ and ΔQ conform to chemical rules better.

关键词

甲基/取代基/诱导效应强度/净电荷/化学位移

Key words

methyl/substituent/inductive effect intension/net charge/chemical shift

分类

化学化工

引用本文复制引用

杨金瑞,母伟花,方德彩,余尚先..判断取代基相对诱导效应强度的新方法——Ⅰ取代基中与甲基碳原子相连原子不具有不饱和键的情况[J].北京师范大学学报:自然科学版,2011,47(5):478-481,4.

北京师范大学学报:自然科学版

OA北大核心CSCDCSTPCD

0476-0301

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