Metal-bound hydrogen atom with extreme NMR shift discovered
By 
Katrina Krämer2019-01-03T13:59:00
Hydrogen atom bound directly to iron detected at ultra-low shift by paramagnetic nuclear magnetic resonance for the first time
For the first time, a metal-bound hydrogen atom was detected by paramagnetic solution nuclear magnetic resonance (NMR). With the help of computational modelling, chemists have pinned it down at –3560ppm – the most extreme upfield proton chemical shift ever found.