Through-bond homonuclear correlation experiments in solid-state NMR applied to quadrupolar nuclei in Al–O–P–O–Al chains†
Abstract
Through-bond homonuclear correlation experiments can be realised in solids between spins of type X, separated by four chemical bonds, in X–O–Y–O–X motifs, provided a J coupling between X and Y exists: central transitions of quadrupolar 27Al spins can be correlated via the J2 scalar coupling between 27Al (X) and 31P (Y) in materials featuring Al–O–P–O–Al motifs.