网站首页  英汉词典

请输入您要查询的英文单词:

 

单词 Allyl complex
释义

Allyl complex

英语百科

Allyl

Structure of the allyl group.
The free radical pathway for the first phase of the oxidative rancidification of fats.
A representative triglyceride found in linseed oil features groups with both singly and doubly allylic CH2 sites (linoleic acid and alpha-linolenic acid) and singly allylic sites (oleic acid).
MO diagram for pi-orbitals on the allyl radical.  The middle MO labeled Ψ2 is singly occupied in the allyl radical.  In the allyl cation Ψ2 is unoccupied and in the allyl anion it is doubly occupied.  Hydrogen atoms are omitted from this picture.

An allyl group is a substituent with the structural formula H2C=CH-CH2R, where R is the rest of the molecule. It consists of a methylene bridge (-CH2-) attached to a vinyl group (-CH=CH2). The name is derived from the Latin word for garlic, Allium sativum. In 1844, Theodor Wertheim isolated an allyl derivative from garlic oil and named it "Schwefelallyl". The term allyl applies to many compounds related to H2C=CH-CH2, some of which are of practical or of everyday importance for example allyl chloride.

随便看

 

英汉网英语在线翻译词典收录了3779314条英语词汇在线翻译词条,基本涵盖了全部常用英语词汇的中英文双语翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2024 encnc.com All Rights Reserved
更新时间:2025/6/21 10:53:07