Difference between revisions of "Hetcor.m"

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Magnitude-mode HETCOR pulse sequence. Syntax:
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{{DISPLAYTITLE:hetcor.m}} __NOTOC__
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Magnitude-mode HETCOR pulse sequence.
  
          fid=hetcor(spin_system,parameters,H,R,K)
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==Syntax==
  
where H is the Hamiltonian matrix, R is the relaxation matrix
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    fid=hetcor(spin_system,parameters,H,R,K)
and K is the chemical kinetics matrix. The following parameters
 
are required:
 
  
parameters.sweep              [F1 F2] sweep widths, Hz
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==Parameters==
  
  parameters.npoints           [F1 F2] numbers of points
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    parameters.sweep        [F1 F2] sweep widths in the
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                            two frequency directions, Hz
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    parameters.npoints       [F1 F2] numbers of points in
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                            the two time directions in fid
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    parameters.spins        {F1 F2} nuclei (e.g. {'1H','13C'})
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    parameters.decouple      list of nuclei that detection
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                            time decoupling should be applied
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                            to - cell array of strings, e.g.
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                            {'1H','15N'})
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    parameters.J            working scalar coupling, Hz
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    H - Hamiltonian matrix, received from context function
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    R - relaxation superoperator, received from context function
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    K - kinetics superoperator, received from context function
  
parameters.spins              {F1 F2} nuclei (e.g. '1H', '13C')
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==Outputs==
  
parameters.decouple           detection time decoupling (cell
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    fid - two-dimensional free induction decay for magnitude-
                              array of strings, e.g. {'1H','15N'})
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           mode processing
  
parameters.J                  scalar coupling, Hz
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==Examples==
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A HETCOR spectrum of strychnine (examples/nmr_liquids/hetcor_strychnine.m) appears below.
  
Note: natural abundance experiments should make use of the isotope dilution functionality. See dilute.m in the kernel.
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[[File:strychnine_hetcor.png]]
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==Notes==
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Natural abundance experiments should make use of the isotope dilution functionality. See [[dilute.m]] function.
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==See also==
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[[cosy.m]], [[noesy.m]], [[hsqc.m]], [[hmqc.m]], [[hnco.m]], [[hncoca.m]], [[noesyhsqc.m]], [[dilute.m]], [[clip_hsqc.m]], [[coloc.m]], [[crazed.m]], [[ct_cosy.m]], [[ct_hsqc.m]], [[dept.m]], [[deptq.m]], [[dqf_cosy.m]], [[ecosy.m]], [[hmbc.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]]
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''Version 2.3, authors: [[Ilya Kuprov]]''

Latest revision as of 19:37, 6 June 2026

Magnitude-mode HETCOR pulse sequence.

Syntax

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

Parameters

   parameters.sweep         [F1 F2] sweep widths in the 
                            two frequency directions, Hz

   parameters.npoints       [F1 F2] numbers of points in 
                            the two time directions in fid

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

   parameters.decouple      list of nuclei that detection 
                            time decoupling should be applied
                            to - cell array of strings, e.g.
                            {'1H','15N'})

   parameters.J             working scalar coupling, Hz

   H - Hamiltonian matrix, received from context function

   R - relaxation superoperator, received from context function

   K - kinetics superoperator, received from context function

Outputs

   fid - two-dimensional free induction decay for magnitude-
         mode processing

Examples

A HETCOR spectrum of strychnine (examples/nmr_liquids/hetcor_strychnine.m) appears below.

Strychnine hetcor.png

Notes

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

See also

cosy.m, noesy.m, hsqc.m, hmqc.m, hnco.m, hncoca.m, noesyhsqc.m, dilute.m, clip_hsqc.m, coloc.m, crazed.m, ct_cosy.m, ct_hsqc.m, dept.m, deptq.m, dqf_cosy.m, ecosy.m, hmbc.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 2.3, authors: Ilya Kuprov