Thursday - August 06, 2009

 Deuterium NMR


 Deuterium NMR has been added to the Varian VnmrS-400. 


Posted at 03:58 PM     Read More  

Thursday - August 06, 2009

 Carbon with Fluorine decoupling


 Carbon spectra with fluorine decoupling has been added to the VnmrS-400. This used garp decoupling to decouple from -100 to -175 ppm (the usual organic range). To change the decoupling window, set the "dof" parameter appropriately.

Click on the CarbonDECFluorine button on the experiment tab. There is also Phosphorus and Boron with Fluorine decoupling, which are PhosphorusDECFluorine and BoronDECFluorine, respectively.

Note that since the probe is only two channel, there is no proton decoupling; we need a H/F/X triple probe to decouple both proton and fluorine.


Posted at 03:49 PM     Read More  


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