Al-27 double rotation two-dimensional spin diffusion NMR: Complete unambiguous assignment of aluminium sites in 9Al(2)O(3) center dot 2B(2)O(3)

Hung, I. and Howes, A. P. and Anupõld, Tiit and Samoson, A. and Massiot, D. and Smith, Mark E. and Brown, S. P. and Dupree, Ray (2006) Al-27 double rotation two-dimensional spin diffusion NMR: Complete unambiguous assignment of aluminium sites in 9Al(2)O(3) center dot 2B(2)O(3). Chemical Physics Letters, 432 (1-3). pp. 152-156.

Abstract

High-resolution two-dimensional Al-27 spin diffusion NMR spectra of 9Al(2)O(3) (.) 2B(2)O(3) recorded under double rotation for different mixing times are presented. The two crystallographically distinct pentahedral Al sites are distinguished by the presence or absence of correlation peaks with neighboring tetrahedral sites.