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Structural chemistry > Chemical shifts 13C > Flashcards

Chemical shifts 13C Flashcards

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1
Q

What is the typical chemical shift for C=O (in ketones) for 13C NMR spectra

A

205-220

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2
Q

What is the typical chemical shift for C=O (in aldehydes) for 13C NMR spectra

A

190-200

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3
Q

What is the typical chemical shift for C=O (acids and esters) for 13C NMR spectra

A

160-185

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4
Q

What is the typical chemical shift for C in aromatic rings for 13C NMR spectra

A

125-150

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5
Q

What is the typical chemical shift for C=C in alkenes for 13C NMR spectra

A

115-140

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6
Q

What is the typical chemical shift for the C in RCH2O- in 13C NMR spectra

A

50-90

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7
Q

What is the typical chemical shift for the C in RCH2Cl in 13C NMR spectra

A

30-60

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8
Q

What is the typical chemical shift for the C in RCH2NH2 in 13C NMR

A

30-65

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9
Q

What is the typical chemical shift for the carbon in R3CH in 13C NMR spectra

A

25-35

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10
Q

What is the typical chemical shift for the first carbon in CH3CO - in the 13C NMR spectra

A

20-50

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11
Q

What is the typical chemical shift for R2CH2 for 13C NMR spectra

A

16-25

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12
Q

What is the typical chemical shift for RCH3 for 13C NMR spectra

A

10-15

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Structural chemistry (11 decks)

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