Suppose we think about the methylene hydrogens of Ph-CH2OH, just as an example. What is shift of these two hydrogen atoms, relative to the situation in which there is an alkyl group, not a phenyl group, on the left-hand side of the molecule? What is the standard explanation for this? You might look at styrene derivatives also.
Although the numerical integrals on the spectrum are not ideal, you should be able to make some arguments, based on peak areas. You can rule one one of your own suggestions, for example.
You mean the chemical shift of the -CH2- group in a molecule like CH3CH2OH??
Its chemical shift should be at around 3.8 ppm .
And the signal is a quartet (n+1,seeing a methyl group)
If I have a PhCH2OH its signal should be >3.8 pm because it 's also benzylic
But it doesn't couple with anythink (perhaps long range with an aromatic hydrogen)
But sorry don't understand what does it has to do with my NMR ...
Also in my molecule there is at 3.8 ppm the - OCH3 signal...
But why does it seems a triplet instead of a singlet? Those OCH3 shouldn't couple with anything
Or the two band near the main peak are not important...
(Because for a triplet the relative intensity band should be 121...here the middle peak is a lot higher)!!