题目内容
From the NMR spectra of ethylene and acetylene, the proton chemical shift values are 5.8 and 2.8, respectively. The reason for the large chemical shift value of proton peaks of the ethylene is ( ).
查看答案
搜索结果不匹配？点我反馈
更多问题
How many spin orientations does an atomic nucleus with spin quantum number I = 1/2 have in the external magnetic field? ( )
In the NMR spectrum of CH3CH2CH3, the proton signal of CH2 is split into ( ) by the proton coupling of CH3.
In the 1H NMR spectrum of CH3CH2OCH(CH3)2, the ratio of area of various proton signals is 9:2:1.
The hydrogen bond has a great influence on the proton chemical shift of active hydrogen.
微信支付 
支付宝支付