noesy.m

Phase-sensitive homonuclear NOESY/EXSY pulse sequence.

Syntax

    fid=noesy(spin_system,parameters,H,R,K)

Parameters

   parameters.sweep     sweep widths, Hz

   parameters.npoints   number of points for both dimensions

   parameters.spins     nuclei on which the sequence runs,
                        specified as {'1H'}, {'13C'}, etc.

   parameters.tmix      mixing time, seconds

   parameters.decouple  spins to be decoupled, specified either
                        by name, e.g. {'13C','1H'}, or by a list
                        of numbers, e.g. [1 2]

   parameters.rho0      initial state; skip this and specify
                        parameters.needs={'rho_eq'} to start
                        from exact thermal equilibrium

   parameters.oldschool set to 1 to disable homospoil gradient
                        before the mixing time

   H - Hamiltonian matrix, received from context function

   R - relaxation superoperator, received from context function

   K - kinetics superoperator, received from context function

Outputs

   fid.cos,fid.sin - two components of the FID for F1 hyper-
                     complex processing

Examples

A NOESY simulation for strychnine may be found in examples/nmr_liquids/noesy_strychnine.m file. The output is shown below.

Notes

This function is used for extreme simulations (proteins and nucleic acids) - its layout is optimised for minimum memory footprint rather than CPU time.

Chemical exchange is supported, just specify your kinetic processes as described in the kinetics chapter.

Non-empty analytical decoupling is meaningful only in sphten-liouv formalism.

See also

cosy.m, dqf_cosy.m, hsqc.m, acquire.m, clip_hsqc.m, coloc.m, crazed.m, ct_cosy.m, ct_hsqc.m, dept.m, deptq.m, ecosy.m, hetcor.m, hmbc.m, hmqc.m, hoesy.m, inadequate.m, inadequate_2d.m, inept.m, inv_rec.m, mqs.m, mqs_refocus.m, pansy_cosy.m, pansy_triple.m, roesy.m, sat_rec.m, tocsy.m, Built-in_experiments

Version 2.4, authors: Ilya Kuprov, Luke Edwards, Hannah Hogben