Teaching CSIR NET Mock Test Series Chemical Sciences Structure Determination of Organic Compounds 1h NMR and 13c NMR Spectroscopy
A molecule shows two absorptions at 896 and 960 MHz in its 13C NMR spectrum in a magnetic field of 3T. The corresponding chemical shifts in ppm are (13C magnetogyric ratio γ = 6.72 × 107 rad T-1 s-1; I = \(\frac{1}{2}\))
1
12.8 and 13.7
2
14 and 15
3
32 and 34
4
28 and 30