Sanjuchemicalscience

 In (NMR c13 )nuclear magnetic resonances  spectroscopy we have discussed that following  important information can be obtain in connection with the structure  of organic compound. 1.   The number of principal signal , tell us about huw many different kind of hydrogen atom are present in the molecules.  2. The position of singnal tells about the electronic  environment of different types of proton present.  3. The NMR active nuclei incl  h1 ,c13 , n15   f19,  p13 which have nuclear. spin of 1/2  4. carbon have three  isotopic : 13c   12c  14c . 5. The gyromagnetic Ratio of 13c = 1/4th 1h .