Timeline for Why does population difference matter in NMR
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| Oct 22, 2022 at 22:41 | vote | accept | CasualChemist96 | ||
| Oct 20, 2022 at 8:02 | comment | added | porphyrin | In addition to your clear answer I would add that that in absorbing electromagnetic radiation of any type a difference in population between two levels is essential, otherwise no net absorption occurs, and the bigger the population difference the bigger the chance of absorption. In NMR the large static magnetic field splits the nuclear energy into two levels (in the case of protons) with a small population difference as described above. The bigger the mag field the bigger $\Delta E$ and the bigger the nmr signal. | |
| Oct 19, 2022 at 20:39 | history | answered | orthocresol | CC BY-SA 4.0 |