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Topic: NMR - predicting splitting pattern  (Read 5675 times)

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Beetle

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NMR - predicting splitting pattern
« on: November 06, 2005, 02:15:56 AM »
I'm really just having trouble interpreting this question:

Predict the splitting pattern for H3 of 4,4-dimethyl-2-pentanol.

I just dont know which H they are talking about.

Apparently the answer is it is doublet.
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Offline Yggdrasil

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Re:NMR - predicting splitting pattern
« Reply #1 on: November 06, 2005, 05:13:46 AM »
They're talking about the H on carbon #3.  Please review organic nomenclature in your organic text if you do not know which carbon is carbon #3.
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Offline sdekivit

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Re:NMR - predicting splitting pattern
« Reply #2 on: November 06, 2005, 05:23:25 AM »
looking at the 3rd C-atom we see a proton with only one H at three bonds distance --> only 1 proton is involved in the splitting pattern --> doublet.
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Beetle

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Re:NMR - predicting splitting pattern
« Reply #3 on: November 06, 2005, 04:31:23 PM »
Thankyou everyone,
it all makes sense now  :)
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