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 p_A $\gg$ p_B, 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:

$${\frac{{\sin{(\Delta\omega \cdot \tau_{\textrm{CPMG}})}}}{{\Delta\omega \cdot \tau_{\textrm{CPMG}}}}}$$ (11.35)

The reference for this equation is:

• Tollinger et al. (2001)

More information about the TSMFK01 model is available from:

• the relax wiki at http://wiki.nmr-relax.com/TSMFK01,
• the API documentation at http://www.nmr-relax.com/api/3.2/lib.dispersion.tsmfk01-module.html,
• the relaxation dispersion page of the relax website at http://www.nmr-relax.com/analyses/relaxation_dispersion.html#TSMFK01.