¹⁷O NMR relaxation measurements for investigation of molecular dynamics in static solids using sodium nitrate as a model compound.

ABSTRACT: ¹⁷O NMR methods are emerging as a powerful tool for determination of structure and dynamics in materials and biological solids. We present experimental and theoretical frameworks for measurements of ¹⁷O NMR relaxation times in static solids focusing on the excitation of the central transition of the ¹⁷O spin 5/2 system. We employ ¹⁷O-enriched NaNO₃ as a model compound, in which the nitrate oxygen atoms undergo 3-fold jumps. Rotating frame (T_1ρ), transverse (T₂) and longitudinal (T₁) relaxation times as well as line shapes were measured for the central transition in the 280 to 195 K temperature range at 14.1 and 18.8 T field strengths. We conduct experimental and theoretical comparison between different

SUBMITTER: Vugmeyster L 

PROVIDER: S-EPMC11625602 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature