NMR- drawing and labelling spectra.

Hi,

I've been given the molecule PF2H and I have to sketch the phosporous, flourine and hydrogen NMR spectra. Then label the peaks and coupling constants.

I think I've worked out the shape to be trigonal bipyramidal but I'm a bit confused about drawing the spectra. I think the way that I've drawn the shape shows that there is only 1 hydrogen environment, 1 phosporous environment and 1 flourine environment but I'm really unsure about drawing the coupling patterns.

Any help would be really appreciated.

Original post by VioletPhillippo

Hi,

I've been given the molecule PF2H and I have to sketch the phosporous, flourine and hydrogen NMR spectra. Then label the peaks and coupling constants.

I think I've worked out the shape to be trigonal bipyramidal but I'm a bit confused about drawing the spectra. I think the way that I've drawn the shape shows that there is only 1 hydrogen environment, 1 phosporous environment and 1 flourine environment but I'm really unsure about drawing the coupling patterns.

Any help would be really appreciated.

The formula you have written cannot be trigonal bipyramidal as there are too few atoms ...