| http://www.w3.org/ns/prov#value | - His second major contribution to the field of NMR spectroscopy was a technique that enabled a high-resolution, ???two-dimensional??? study of larger molecules than had previously been accessible to NMR. With Ernst's refinements, scientists were able to determine the three-dimensional structure of organic and inorganic compounds and of biological macromolecules such as proteins; to study the intera
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