lecture 4 sir drug nmr

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Last updated 2:32 PM on 8/4/26
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4 Terms

1
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proton nmr, whats the ppm value for

carbox/aldehyde

unsaturated aromatic/vinylic

saturated alipatic

CHx-O/N group

1) carbox/aldehyde 12.5-9.5ppm

2)aromatic 8.5-5

3)aliphatic 4.5-0

4)CHx-O/N 4.5-2.5

2
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carbon chemical shift of

carbonyl (c=o)

aromatic c=c

c-O/N

c-h aliphatic

carbonyl- 170-210

c=c aromatic 130-150

C-O/N 60-90

aliphatic C-H 0-50

3
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whats cosy

Correlation spec

accounts for cross peaks between H that are 2 or 3 bonds anway.

<p>Correlation spec</p><p>accounts for cross peaks between H that are 2 or 3 bonds anway.</p>
4
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whats TOCSY