coloc.m

From Spinach Documentation Wiki
Jump to: navigation, search

COLOC NMR pulse sequence from https://doi.org/10.1016/0022-2364(84)90136-7, implemented as shown in Figure 1b, without the dashed pulses during the delta(2) period. Delta(1) is calculated using the sweep width supplied by the user, delta(2) must be specified.

Syntax

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

Arguments

    parameters.sweep         [F1 F2] sweep widths, Hz

    parameters.npoints       [F1 F2] numbers of points

    parameters.spins         {F1 F2} nuclei (e.g. '13C','1H')

    parameters.delta2        COLOC delta2 (see the paper),
                             typically 40e-3 seconds

    H  - Hamiltonian matrix, received from context function

    R  - relaxation superoperator, received from context function

    K  - kinetics superoperator, received from context function

Outputs

    fid - free induction decay for magnitude mode processing

Examples

An example may be found in examles/nmr_liquids/coloc_test.m file, its output appears below.

Coloc.png

Notes

Natural abundance simulations should make use of the isotope dilution functionality. See dilute.m function.

See also

hsqc.m, hmqc.m, hetcor.m, dilute.m


Version 2.4, authors: Bud MacAulay, Ilya Kuprov