Question

The 13C chemical shifts of benzene and chloroform are 128.4 ppm and 77.2 ppm respectively. What is the difference in the 13C NMR frequencies of the two compounds on a 600 MHz spectrometer?

Answer 1

The difference in the 13C NMR frequencies of benzene and chloroform on a 600 MHz spectrometer is 30720 MHz ppm.

Step-by-step explanation:

The 13C NMR frequency is directly proportional to the 13C chemical shift and the strength of the magnetic field. To find the difference in the 13C NMR frequencies between benzene and chloroform on a 600 MHz spectrometer, we can subtract their chemical shifts and multiply the result by the spectrometer frequency:

Difference = (Chemical shift of benzene - Chemical shift of chloroform) * Spectrometer frequency
= (128.4 ppm - 77.2 ppm) * 600 MHz
= 51.2 ppm * 600 MHz
= 30720 MHz ppm

Therefore, the difference in the 13C NMR frequencies of benzene and chloroform on a 600 MHz spectrometer is 30720 MHz ppm.