| Abstract: | Nuclear magnetic resonance (NMR) has proved to be a uniquely powerful and versatile spectroscopy, and no modern university chemistry department or industrial chemistry laboratory is complete without a suite of NMR spectrometers. The phenomenon of nuclear spin may seem an odd basis for an analytical tool, but it is the relative isolation of the nuclear spin from its surroundings that makes it an ideal noninterfering probe of the electronic environment. Different sites are clearly identified by their chemical shifts, while J couplings in 1H spectra provide connectivity information. The combination of these two complementary interactions, plus the formidable array of different NMR experiments developed since the arrival of Fourier transform NMR in 1966, has revolutionized the practice of chemistry. |
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