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

✍ Scribed by Leszek Poppe; Herman van Halbeek

• Publisher: John Wiley and Sons
• Year: 1993
• Tongue: English
• Weight: 385 KB
• Volume: 31
• Category: Article
• ISSN: 0749-1581
• DOI: 10.1002/mrc.1260310712

✦ Synopsis

Abstract

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.