Abstract
The recent progress of two-dimensional NMR is described for improved structural studies of glasses, particularly of the connectivities of the various phosphate Qn groups in terms of the nomenclature Qnjkl where the number of additional superscripts depends on the number of bridging oxygens n and where j, k and 1 denote the Q character of the bonded adjacent unit. Furthermore, applications of NMR for structural studies of plasma-sprayed hydroxyapatite are presented as well as studies of mesostructured aluminophosphates. 2D heteronuclear correlation NMR allows to locate the headgroup of the template molecule with respect to the inner surfaces of the layers.
