M61
Revision as of 13:28, 15 November 2015 by Troels Emtekær Linnet (talk | contribs)
The Meiboom 1961 2-site on-resonance fast exchange relaxation dispersion model for R1rho-type data. This model is labelled as M61 in relax.
Equation
[math] \mathrm{R}_{1\rho}= \mathrm{R}_{1\rho}{´} + \frac{\Phi_\textrm{ex} \textrm{k}_\textrm{ex}}{\textrm{k}_\textrm{ex}^2 + \omega_\textrm{e}^2} [/math]
[math] \mathrm{R}_{1\rho}= \mathrm{R}_1\cos^2\theta + \left( \mathrm{R}_{1\rho}{´} + \frac{\Phi_\textrm{ex} \textrm{k}_\textrm{ex}}{\textrm{k}_\textrm{ex}^2 + \omega_\textrm{e}^2} \right) \sin^2\theta [/math]
Parameters
The M61 model has the parameters {R1ρ', ..., Φex, kex}.
Reference
The reference for the M61 model is:
- Meiboom, S. (1961). Nuclear magnetic resonance study of proton transfer in water. J. Chem. Phys., 34(2), 375-388. (10.1063/1.1700960).
Related models
The DPL94 model is an extension of the M61 model for off-resonance data.
Links
The implementation of the M61 model in relax can be seen in the: