Figures used in the NMR tutorial

number section caption
Fig. 1
Spin States Graphical relationship between field Bo and frequency .
Fig. 2
Spin States Creation of the Be field by the circulation of electrons in response to the Bo field. Be opposes Bo at the nucleus.
Fig. 3
Chemical Shift Tetramethylsilane (TMS).
Fig. 4
Chemical Shift NMR chart papers for 1H and 13C NMR.
Fig. 5
Chemical Shift The 1H NMR spectrum of methyl acetate.
Fig. 6
Chemical Shifts (Proton) The effect of electronegative elements on chemical shift.
Fig. 7
Chemical Shifts (Proton) Components of the Be field produced by the circulation of -electrons in alkenes, aromatics, and alkynes as a function of orientation relative to the applied field Bo. The major anisotropic contribution to the total Be field from circulation of -electrons adds to (alkene or aromatic) or subtracts from Bo (alkyne).
Fig. 8
Chemical Shifts (Proton) Approximate proton chemical shifts.
Fig. 9
Chemical Shifts (Carbon) Comparison of carbon chemical shifts and proton chemical shifts calculated using empirical rules and ChemDraw software.
Fig. 10
Chemical Shifts (Carbon) 1H and 13C NMR spectra of 1-bromobutane.
Fig. 11
Chemical Shifts (Carbon) Carbon shift values for t-butyl benzene.
Fig. 12
Energy absorbtion Precessing spin vectors.
Fig. 13
Energy absorbtion The 6 NMR-equivalent protons of acetone.
Fig. 14
Energy absorbtion Vector diagram illustrating the NMR experiment.
Fig. 15
Energy absorbtion 1H frequency and time domain spectra of 1-methoxy-2-propanone in CDCl3.
Fig. 16
Coupling (proton) Splitting of an NMR signal into a doublet as a result of the Bn field produced by a single vicinal proton.
Fig. 17
Coupling (proton) Splitting of an NMR signal into a triplet as a result of the Bn field produced by two vicinal protons.
Fig. 18
Coupling (proton) Splitting of an NMR signal into a quartet as a result of the Bn field produced by three vicinal protons.
Fig. 19
Coupling (proton) Pascal's Triangle.
Fig. 20
Coupling (proton) Examples of proton-proton coupling constants (J) as a function of structure.
Fig. 21
Coupling (proton) Examples of diastereotopic hydrogens.
Fig. 22
Coupling (proton) 1H NMR spectrum of methyl propanoate.
Fig. 23
Complex splitting 1H NMR spectrum of phenyloxirane showing the AMX pattern of three doublets of doublets.
Fig. 24
Complex splitting Second order intensity perturbation.
Fig. 25
Complex splitting 1H NMR spectrum of 2-butanone showing tilted patterns of coupled protons.
Fig. 26
Coupling (carbon) Proton decoupled 13C spectrum of ethyl acetate in CDCl3.
Fig. 27
Integration (proton) Integration values for the 1H NMR spectrum of 2-butanone.

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Copyright information: Original content © University of Colorado, Boulder, Chemistry and Biochemistry Department, 2011. The information on these pages is available for academic use without restriction.