Data sets for "Structure of amorphous materials in the NASICON system Na_{1+x}Ti_2Si_xP_{3-x}O_{12}"

Data sets used to prepare Figures 3, 5 and 6 in the Journal of Physics: Condensed Matter article entitled "Structure of amorphous materials in the NASICON system Na_{1+x}Ti_2Si_xP_{3-x}O_{12}". The data sets refer to the glass structure for the compositions x = 0.8 and x = 1.0, as measured using neutron and x-ray diffraction. The diffraction results were combined with those from 29Si, 31P and 23Na solid-state nuclear magnetic resonance experiments to obtain a more complete picture of the atomic structure. NASICON is an acronym for sodium (Na) super-ionic conductor and NASICON materials are of interest as solid electrolytes and electrode materials for electrical storage energy devices. The crystalline phase can be prepared via the glass-ceramic route, leading to basic questions about the structure of the glass and how it evolves during the process of crystallisation.