Revision:Why is benzene stable?

浏览上一个主题 浏览下一个主题 向下

Revision:Why is benzene stable?

帖子 由 Giraffe 于 周六 七月 25, 2009 12:48 pm

* The p orbitals on each carbon atom in benzene overlap

* There is delocalisation of electrons in the ring (not 3 localised C==C double bonds)

* This makes benzene more thermodynamically stable than predicted

* It therefore undergoes substitution reactions rather than
addition reactions because addition reaction break the delocalisation
in the ring. e.g The nitration of benzene results in a loss of H+ which
is replaced by NO2+

Diagram of Benzene

Giraffe
校长
校长

帖子数 : 542
学分 1018
来自 : johor
注册日期 : 09-07-22
年龄 : 24

查阅用户资料 http://thestudents.forumotion.com

返回页首 向下

浏览上一个主题 浏览下一个主题 返回页首


 
您在这个论坛的权限:
不能在这个论坛回复主题