Proton-phosphorous connectivities revealed by high-resolution proton-detected solid-state NMR

Abstract

Proton-detected solid-state NMR enables atomic-level insight in solid-state reactions, for instance in heterogeneous catalysis, which is fundamental for deciphering chemical reaction mechanisms. We herein introduce a phosphorus-31 radiofrequency channel in...

CeO2‐Based Frustrated Lewis Pairs via Defective Engineering: Formation Theory, Site Characterization, and Small Molecule Activation

“…Malär et al. [ 43 ] explored how proton‐detected nuclear magnetic resonance with fast magic angle spinning (MAS) experiments are used for the structural characterization of phosphorus and phosphine systems, particularly those related to FLPs. Fast MAS experiments significantly reduce the uniform proton linewidth of such compounds.…”

“…Wiegand et al [42] described the sensitivity of isotropic chemical shifts, nuclear quadrupole coupling constants, and indirect spin-spin coupling constants to the covalent interaction strength between Lewis acid and base functional groups. Malär et al [43] explored how proton-detected nuclear magnetic resonance with fast magic angle spinning (MAS) experiments are used for the structural characterization of phosphorus and phosphine systems, particularly those related to FLPs. Fast MAS experiments significantly reduce the uniform proton linewidth of such compounds.…”

Advances in the characterization of inorganic solids using NMR correlation experiments

“…The 19 F nuclei have also been used as spy spin for the indirect detection of 13 C nuclei using DCP scheme in the case of mesoporous silica functionalized with fluorinated organic moieties 202 . More recently, DCP sequence has been employed for the indirect detection via protons of low-γ spin-1/2 isotopes, including 89 Y, 103 Rh and 183 W, in inorganic and hybrid materials 217 as well as 31 P nuclei in phosphane/borane 218 . The sensitivity of DCP experiment with 1 H detection has also been enhanced using DNP 200 .…”