Calculate Chemical Shift & Expected Vaules

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Chemistry

Organic Chemistry

Last updated 5:30 PM on 10/24/25
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18 Terms

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Methyl (R-CH3)

~0.9ppm

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Methylene (R2-CH2)

~1.2ppm

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Methine (R3-CH)

~1.7ppm

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Allylic

~2ppm

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Alkynyl

~2.5ppm

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Aromatic Methyl

~2.5ppm

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Alkyl Halide

2-4ppm

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Alcohol (O-H)

2-5ppm

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Vinylic

4.5-6.5ppm

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Aryl (on Aromatic Ring)

6.5-8ppm

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Aldehyde

~10pm

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Carboxylic Acid

~12ppm

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Effect on alpha proton from oxygen (alcohol or ether)

+2.5ppm

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Effect on alpha proton from oxygen (Ester)

+3ppm

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Effect on alpha proton from carbonyl

+1ppm

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Effect on beta proton from oxygen (alcohol or ether)

+0.5ppm

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Effect on beta proton from oxygen (ester)

+0.6ppm

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Effect on beta proton from carbonyl

+0.2ppm