𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Double rotation and magic-angle spinning nuclear magnetic resonance study of 27Al: reexamination of the aluminium borate 9Al2O3 · 2B2O3

✍ Scribed by D. Massiot; D. Müller; Th. Hübert; M. Schneider; A.P.M. Kentgens; B. Coté; J.P. Coutures; W. Gessner

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
502 KB
Volume
5
Category
Article
ISSN
0926-2040

No coin nor oath required. For personal study only.

✦ Synopsis

27Al nuclear magnetic resonance spectra of polycrystalline aluminium borate 9Al2O3.2B2O3 have been measured in double rotation at 11.7 and 7.0 T and high-speed magic-angle spinning at 7.0, 9.4, 11.7, 14.1 and 17.6 T. Spinning sidebands from the satellite transitions were observed at 7.0 and 14.1 T. Each of the four structural aluminium sites [Al(IV), Al(V)(1), Al(V)(2) and Al(VI)] are observed, characterised and assigned in the spectra. The obtained parameter set gives a fully consistent interpretation in agreement with the crystal structure of the compound.

📜 SIMILAR VOLUMES

27Al magic-angle spinning nuclear magnet
27Al magic-angle spinning nuclear magnetic resonance satellite transition spectroscopy of glasses in the system K2O-Al2O3-SiO2
✍ C. Mundus; W. Müller-Warmuth 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 689 KB

27Al magic-angle spinning nuclear magnetic resonance satellite transition spectroscopy at 78 MHz has been applied to determine (true) chemical shift and quadrupole coupling parameters of glasses in the system K2O-Al2O3-SiO2 with 60-80 mol% SiO2 and K2O concentrations between 0 and 24 mol%. The powde

27Al satellite transition spectroscopy (
27Al satellite transition spectroscopy (SATRAS) of polycrystalline aluminium borate 9Al2O3 · 2B2O3
✍ G. Kunath; P. Losso; S. Steuernagel; H. Schneider; C. Jäger 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 582 KB

27Al NMR spectra of polycrystalline aluminum borate 9Al2O3.2B2O3 have been measured at 104, 130 and 156 MHz. The parameters of the quadrupole interaction and the isotropic chemical shifts have been obtained by fitting the CT/MAS pattern and consideration of the inner satellite transitions m = 3/2<--

Magic-angle spinning nuclear magnetic re
Magic-angle spinning nuclear magnetic resonance study of the structure of some PbO-Al2O3-P2O5 glasses
✍ M.W.G. Lockyer; D. Holland; A.P. Howes; R. Dupree 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 900 KB

Some PbO-Al2O3-P2O5 glasses have been investigated using 31P and 27Al magic-angle spinning nuclear magnetic resonance. The observed spectra could be divided into two groups. In the first, Al(IV), Al(V) and Al(VI) are observed, the 31P linewidths are large and the chemical shift range (-30 to -36 ppm