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Topic: Deuterium signal in Proton NMR?  (Read 4605 times)

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Offline limonade

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Deuterium signal in Proton NMR?
« on: April 06, 2013, 11:41:13 PM »
In the proton  NMR spectroscopy for the following,  why does the deuterium atom not give a signal?

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Offline discodermolide

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Re: Deuterium signal in Proton NMR?
« Reply #1 on: April 06, 2013, 11:43:18 PM »
Because it is a proton NMR you are using, deuterium is not NMR active at that frequency.
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Offline Dean

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Re: Deuterium signal in Proton NMR?
« Reply #2 on: April 07, 2013, 01:24:51 PM »
Because it is a PROTON NMR
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Offline Silver-Midnight

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Re: Deuterium signal in Proton NMR?
« Reply #3 on: April 10, 2013, 01:54:45 PM »
Like the others have said, it's because it's a proton NMR. It's only going to pick up proton/H signals.
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Offline Babcock_Hall

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Re: Deuterium signal in Proton NMR?
« Reply #4 on: April 10, 2013, 06:00:41 PM »
The presence of coupling between deuterium and hydrogen can sometimes be observed in H-1 NMR.  The values of JHD are smaller than the values of JHH.  I would not expect to see any coupling in this case.
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