Chemical shift anisotropy of the anomeric protons in α‐ and β‐ D ‐glucose

Values for the chemical shift anisotropies of the α‐ and β‐anomeric protons in [1‐ 13 C]‐D‐glucose were measured by ortho‐ROESY and SLOESY experiments using non‐selective and selective 1 H spin‐locking by DANTE pulse trains, respectively. The experiments were performed under the condition ω H τ o ≈ 1, in order to enhance cross‐correlated cross‐relaxation due to interference between 1 H chemical shift anisotropy and 1 H‐ 13 C dipolar interactions. Assuming axial symmetry for the 1 H chemical shift tensor, chemical shift anisotropy values of Δσ H‐1(α) ≈ −6.1 ppm and Δσ H‐1(β) ≈ −2.4 ppm were obtained.