In order to better compare NMR spectra collected at different field strength, it has become custom to convert frequency to a dimensionless quantity called chemical shift with unit ppm (parts per ...

Unfortunately, many 1H-NMR spectra are severely overlapped due to the multiplet structure caused by homo-nuclear scalar couplings. "Pure shift" NMR spectra, also known as broadband homonuclear ...

Solid-State NMR has become an important method in zeolite research ... Such model studies are usually performed by the investigation of a large number of model compounds (e.g. to establish a chemical ...