Two-dimensional heteronuclear 1H ↔ 27Al-correlated MAS NMR spectra of layered silicates

Abstract
The structural locations of aluminium in layered silicates, with different chemical environments but similar coordination polyhedra, can be established unequivocally from the correlation between the chemical shifts of protons and 27Al nuclei, via their heteronuclear dipole–dipole couplings.

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