[Bertran05]

Can someone help me with an 1 H spectrum of a molecule which contains a morpholine ring? I have two H patterns of methylene of morpholine, so one of them has resonance signal 3.6 ppm (CH2-O) and the other resonance signal 2.2 ppm (CH2-N)...

Why the signal resonance of methylene close to N are a broad band (it seems to be a triplet but its not clear)?

and why the other signal close to O is a clear triplet? Why this difference?

And the last question, Why is the reason of 4 protons of methylene has the same resonance signal...? and other 4 protons too?

Thanks !

[sjb]

Why is the proton NMR of cyclohexane a singlet at room temperature? Why are the methyls different in DMF at room temperature?

[Bertran05]

Can someone help me with an 1 H spectrum of a molecule which contains a morpholine ring? I have two H patterns of methylene of morpholine, so one of them has resonance signal 3.6 ppm (CH2-O) and the other resonance signal 2.2 ppm (CH2-N)...

Why the signal resonance of methylene close to N are a broad band (it seems to be a triplet but its not clear)?

and why the other signal close to O is a clear triplet? Why this difference?

And the last question, Why is the reason of 4 protons of methylene has the same resonance signal...? and other 4 protons too?

Thanks !