Chemistry Notes for B.Sc. and M.Sc.

NMR-Spectroscopy Principle  NMR spectroscopy involves the absorption of electromagnetic radiation in the radiofrequency region and the principle of NMR spectroscopy revolves around the non- zero value of nuclear spin i.e. I   S. No. Number of Protons Number of Neutrons Nuclear Spin (I) examples 1 even even 0 6 C 12 , 8 O 16 2*             odd even Half integer (1/2, 3/2, 5/2) 1 H 1 , 9 F 19 , 15 P 31 3**             even odd Half integer (1/2, 3/2, 5/2) 6 C 13 4***              odd odd Full integer 7 N 14 *This is possible when both atomic number and mass...