神马作文网英语翻译In theory,we might have expected four sets of proton sig
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英语翻译
In theory,we might have expected four sets of proton signals for toluene.However,the resolving power of an nmr spectrometer .good as it is in most applications of such spectroscopy .is not sufficiently good to distinguish among the ortho.meta and para hydrogens of toluene,so that we see ' but two signals in the spectrum of this compound2.
In theory,we might have expected four sets of proton signals for toluene.However,the resolving power of an nmr spectrometer .good as it is in most applications of such spectroscopy .is not sufficiently good to distinguish among the ortho.meta and para hydrogens of toluene,so that we see ' but two signals in the spectrum of this compound2.
大致意思是甲苯的核磁共振氢谱能让我们得到四个峰的信号,我们可以分辨出哪个峰是甲基形成的,哪个峰是苯环上甲基的对位的氢形成的,可是弄不清苯环上甲基邻位、间位的氢所形成的峰
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