Double rotation and magic-angle spinning nuclear magnetic resonance study of 27Al: reexamination of the aluminium borate 9Al2O3.2B2O3.
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.
Massiot
D
D
Centre de Recherche sur la Physique des Hautes Températures, Orléans, France.
Müller
D
D
Hübert
T
T
Schneider
M
M
Kentgens
A P
AP
Coté
B
B
Coutures
J P
JP
Gessner
W
W
D017607:Aluminum Compounds / Q000737:chemistry*; D001888:Boric Acids / Q000737:chemistry*; D003460:Crystallization; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D014867:Water
D017607:Aluminum Compounds; D001888:Boric Acids; D014867:Water