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31P-NMR

Inorganic Phosphate    PO4
85% H3PO4 in H2O            0.00 ppm
 
Trialkylphosphates      P(O)(OR3)
Tribenzylphosphate               -0.22 ppm          CDCl3         (my spectrum)            3JPH = 8.07 Hz
Various dibenzylcyclohexylphosphates        -0.9 to -1.0 ppm        CDCl3         (my spectrum) 
 
Trialkylphosphites      P(OR3)
Tribenzylphosphite                139.19 ppm        no solvent   (my spectrum)            3JPH = 7.81 Hz
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