[Uni Tübingen] - [Mat.-Nat. Fakultät] - [Fachbereich Chemie] - [Anorg. Chemie] - [Klaus Eichele] - [NMR Ramblings] - [Spin Systems] - AB2 Spin System

Spin System: AB2 Simulation

Input Section

Please enter the two chemical shifts (in ppm)and the JAB coupling constant (in Hz) and the frequency SF of the reference compound (in MHz), as well as the desired total width of the simulated spectra in pixels (be reasonable ;-):

δ(A): Hz
δ(B): Hz
J(AB): Hz
SF: MHz
width: pixel
 

Simulation of AB2

v1 = 10977.07 HzI1 = 0.3596
v2 = 11017.54 HzI2 = 0.5161
v3 = 11044.68 HzI3 = 1.0000
v4 = 11085.15 HzI4 = 2.1304
v5 = 11132.58 HzI5 = 3.1243
v6 = 11137.76 HzI6 = 2.6404
v7 = 11178.23 HzI7 = 1.3535
v8 = 11200.20 HzI8 = 0.8696
v9 = 11293.27 HzI9 = 0.0062
Δν/J = 1.95ΣI = 12.0000

left = 11324.90 Hz | right = 10945.45 Hz

References

  1. Garbisch, E. W., Jr., J. Chem. Educ. 1968, 45, 402-416, DOI: 10.1021/ed045p402. The equations for the transition frequencies and intensities look more attractive for an implementation to calculate spectra, but they contain errors. The calculations here use the expressions from [2] and [3].
  2. Bernstein, H. J.; Pople, J. A.; Schneider, W. G., Can. J. Chem. 1957, 35, 65-81, DOI: 10.1139/v57-011
  3. Bovey, F. A.; Jelinski, L.; Mirau, P. A., Nuclear Magnetic Resonance Spectroscopy, 2nd ed., Academic Press, San Diego, 1988, DOI: 10.1016/C2009-0-21711-9

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