The TSMFK01 2-site CPMG model

This is the model for 2-site very-slow exchange model for time scales within range of microsecond to second time scale, where pA $\gg$ pB, and named after Tollinger et al. (2001). It is selected by setting the model to `TSMFK01'. A particularly interesting feature of the dispersion curves is the damped oscillations, which occur at low CPMG field strengths, and is solely a function of the chemical shift difference between the two sites (i.e. independent of the rate of exchange).

The equation is:

R2eff = R2A0 + kAB - kAB$\displaystyle {\frac{{\sin{(\Delta\omega \cdot \tau_{\textrm{CPMG}})}}}{{\Delta\omega \cdot \tau_{\textrm{CPMG}}}}}$ (11.35)

The reference for this equation is:

More information about the TSMFK01 model is available from:

The relax user manual (PDF), created 2020-08-26.