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Demo: PPh3, inverse FG-HOESY

The sound and the spectrum given on this page are quite strange. HOESY is a method which exploits the nuclear Overhauser effect (NOE) between heteronuclei (here: 1H and 31P). In the present case, "inverse" detection is carried out on the 1H channel. In addition, coherence pathway selection is done by the application of pulsed field gradients (FG) instead of phase cycling. This leads to the formation of typical gradient echoes as can be easily seen and heard.

If you want to read more about this method, please look up the References section.

PPh3, inverse FG-HOESY, FID

PPh3, inverse FG-HOESY, spectrum

PPh3, inverse FG-HOESY, FID sound, .aiff

PPh3, inverse FG-HOESY, FID sound, .wav

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August 20, 1996