nmr spectroscopy principle

Chemical-Shift Standards for 199Hg NMR Spectroscopy pdf  download While 199Hg NMR is a well-established tool for elucidating details of coordination chemistry in biochemical and inorganic complexes, historically the technique has been associated with the use of an extremely toxic chemical, dimethylmercury [Me2Hg or (CH3)2Hg], as a reference standard.