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Anatomy of a 2D experiment. 3. 3D NMR spectroscopy no quantum mechanics! Page 2. Some Common 2D Experiments.NMR experiments easy. • Most 2D experiments are already set up, requiring only a 2D spectra ready for interpretation Basics of ANY 2D NMR Experiment. The 1975 Ernst paper “Two-dimensional spectroscopy, application to nuclear magnetic resonance” utilized Jeener's idea to produce spectra. Conventional NMR spectra (one-dimensional spectra) are plots of intensity vs. frequency; in two-dimensional spectroscopy intensity is plotted as a function. Two dimensional NMR is a novel and non-trivial extension of 1D NMR spectroscopy. In the simplest form of understanding the (a) 1D spectrum is a plot of 2D NMR spectroscopy can be used to probe specific NMR interactions selectively. Spreading out the spectrum in two dimensions has the advantage for large Basic features of 2D spectra. Page 6. WHEN? Overlap of signals in the 1D spectrum. No overlap, easy to assign. Page 7