On request, the popular Mathematica code CandRsymmetries has been resurrected as a new SpinDynamica add-on called SymmetryBasedRecouplingAnalysis. It may be found under AddOns or here.
Jan 19
SpinDynamica used for parahydrogen simulations
In a recently accepted JACS paper, Russ Bowers and co-workers investigate parahydrogen reactions on nanoparticles, using 6-spin-1/2 SpinDynamica simulations. See:
Jan 16
Spin-3/2 spin dynamics
This example file illustrates the spin dynamics of a spin-3/2 system in the presence of weak and strong rf fields. Selective manipulations of the central and satellite transitions are illustrated, including the use of cosine-modulated fields to excite the satellite transitions. Download here: SpinThreeHalfDynamics or here.
Sep 19
Spectrum of 133Cs in an inhomogeneous gel
The routine EnsembleAverage may be used to generate arbitrary distributions of nuclear spin interactions. In an example posted on the forum, I used EnsembleAverage to generate the spectrum of 133Cs (I=7/2) in an inhomogeneous gel. The same notebook includes a simulation of quadrupolar echoes in spin-7/2 with curious fractional timings.
Sep 19
Simulating chemical exchange in an AB spin system
At the present time, the case of spin systems experiencing chemical exchange cannot be handled entirely within the architecture of SpinDynamica. However, it is possible to build upon SpinDynamica to handle chemical exchange. I have posted an example file on the forum showing how to simulate an AB spin system of two spins-1/2 experiencing chemical exchange between inequivalent sites. The resulting lineshapes can be non-intuitive.
Apr 28
Ultrafast COSY
A SpinDynamica demonstration of single-scan 2D spectroscopy using a spatial encoding of the spin interaction.
Routines used: Signal1D, EnsembleAverage, ShapeFunction
Programmed by Dr. Jean-Nicolas Dumez
Attached File : ufcosy.nb
Mar 17
Visualization of Euler Angles
SpinDynamica code for the interactive visualization of Euler angles is available here: EulerVisualization
Feb 07
Composite Pulse Animation
A notebook for producing 3D animations of composite pulses is available here:
https://www.dropbox.com/s/yam19kdjo8qtwva/CompositePulseAnimation.nb
The plot shown is a single frame from one such animation.