Difference between revisions of "NS CPMG 2-site star"
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The [[Relaxation dispersion citation for relax|implementation of the NS CPMG 2-site star model in relax]] can be seen in the: | The [[Relaxation dispersion citation for relax|implementation of the NS CPMG 2-site star model in relax]] can be seen in the: | ||
| − | * [http://www.nmr-relax.com/manual/ | + | * [http://www.nmr-relax.com/manual/The_reduced_NS_2_site_star_CPMG_model.html relax manual], |
* [http://www.nmr-relax.com/api/3.1/lib.dispersion.ns_cpmg_2site_star-module.html API documentation], | * [http://www.nmr-relax.com/api/3.1/lib.dispersion.ns_cpmg_2site_star-module.html API documentation], | ||
* [http://www.nmr-relax.com/analyses/relaxation_dispersion.html#NS_CPMG_2-site_star relaxation dispersion page of the relax website]. | * [http://www.nmr-relax.com/analyses/relaxation_dispersion.html#NS_CPMG_2-site_star relaxation dispersion page of the relax website]. | ||
Revision as of 13:13, 26 November 2014
Intro
The relaxation dispersion model for the numeric solution (NS) to the Bloch-McConnell equations for SQ CPMG-type data using complex conjugate matrices whereby the simplification $R^0_{2A} = R^0_{2B}$ is assumed. The model is labelled as NS CPMG 2-site star in relax.
Parameters
The NS CPMG 2-site star model has the parameters {$R_2^0$, $...$, $p_A$, $\Delta\omega$, $k_{ex}$}.
References
The function uses an explicit matrix that contains relaxation, exchange and chemical shift terms. It does the 180deg pulses in the CPMG train with conjugate complex matrices. The approach of Bloch-McConnell can be found in chapter 3.1 of Palmer, A. G. 2004 I{Chem. Rev.}, B{104}, 3623-3640. This function was written, initially in MATLAB, in 2010.
The code was submitted at U{http://thread.gmane.org/gmane.science.nmr.relax.devel/4132} by Paul Schanda.
Related models
The NS CPMG 2-site star model is a parametric restriction of the NS CPMG 2-site star full model.
Links
The implementation of the NS CPMG 2-site star model in relax can be seen in the:
