Spectroscopy

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46 Cards. Created by Konrad Edwards ().
NMR shifts NMR coupling constants IR stretches
 
Term  
Definition

Ketone 13C NMR Shift

Just over 200 ppm

Aldehyde 13C NMR Shift

Just under 200 ppm

Carbonyl - X 13C NMR Shift

160-170 ppm

Methyl 13C NMR Shift

0-10 ppm

Alkyne 13C NMR Shift

70-80 ppm

Nitrile 13C NMR Shift

110-120 ppm

C=C 13C NMR Shift

100 - 150 ppm region

C-C 13C NMR Shift

0 - 50 ppm region

CH31H NMR Shift

1 ppm

Difference between Chain (CH2) and Methyl 1H NMR Shifts

Chain protons +0.5 ppm relative to similar Methyl protons

What is the effect of Carbon Conjugation on 1H NMR Shift?

Increases the shift

H-C-C=X 1H NMR Shift

~2.5 ppm

Alkyne-H 1H NMR Shift

~2.2 ppm

C=C-H 1H NMR Shift

~5 ppm

Aldehyde 1H NMR Shift

10 ppm

Aromatic Proton 1H NMR Shift

7-8 ppm

H2O 1H NMR Shift

1.5 ppm (Usually to be noted as a contaminant)

Three member ring proton 1H NMR Shift

0.5 ppm

O-C-H 1H NMR Shift

3.5 ppm

N-C-H 1H NMR Shift

2.5 ppm