Two-Dimensional Nuclear Magnetic Resonance is an advanced spectroscopic technique that builds upon the capabilities of one-dimensional NMR by incorporating an additional frequency dimension.
(proton NMR, hydrogen-1 NMR, or 1H NMR) the application of nuclear magnetic resonance in NMR spectroscopy with respect to hydrogen-1 nuclei within the molecules of a substance, in order to determine the structure of its molecules.