Ultrafast 1H J-resolved spectroscopy via 2H distant dipolar field in magnetic fields with unknown spatial variations

Spatially encoded ultrafast NMR accelerates the acquisition of 2D NMR spectra by orders of magnitude, but it is affected by field inhomogeneity. To circumvent this influence, various approaches have been proposed. Here we propose a new scheme to ultrafast achieve 2D J-resolved spectroscopy in inhomogeneous fields via the distant dipolar field of deuterium nuclei. Compared to the methods via homonuclear distant dipolar field, the trouble of selective excitation and solvent suppression when the peaks of solvent and solute spins are close to each other in inhomogeneous fields will be avoided. Theoretical analyses and experimental results are presented for verification.