A multinuclear H-1, F-19, C-13, N-14 and O-17 NMR chemical shift study of 1-Fluoro-2,4-Dinitrobenzene has been carried out in detail. The detail H-1 chemical shift study gives 9.061, 8.897, 8.033 ppm for H3, H5 and H6 protons respectively while the F-19 chemical shift is -107.876 ppm with respect to CFCl3 and - 60.606 ppm with respect to C6F6 as an external standard in the neat liquid at 32-degrees-C. The F-19 signal is a septet. C-13 spectrum is analyzed on the basis of C-13 spin-lattice relaxation time T1 and proton chemical shifts. Only the C5 signal is singlet and the other are doublets. The chemical shifts are 159.2, 137.3, 131.3, 144.1, 122.5 and 120.6 ppm for C1 to C6 respectively at 32-degrees-C with respect to TMS as an internal standard. The N-14 chemical shifts is -16.6 ppm (w.r.t. NO3- of NH4NO3 used as an external standard) and -18.1 ppm (w.r.t. CH3NO2 as an external standard). The O-17 Chemical shifts w.r.t. H2O as the external standard is 607.6 ppm at 95-degrees-C.
M A R ABID ,A W K KHANZADA ,
You can use below filter to find your desired issue