Characterization of the structure of binary zinc ultraphosphate glasses by infrared and Raman spectroscopy

The Raman and infrared spectra of zinc phosphate glasses, xZnO .(1 - x)P2O5 with 0 less than or equal to x less than or equal to 0.5, and the crystalline compounds o'-P2O5,ZnP4O11,alpha(1)-,alpha(2)-, and beta-Zn(PO3)(2) were measured. An analysis of the vibrational spectra is discussed in comparison with the results of the investigation of the same glasses by P-31-MAS-NMR spectroscopy and X-ray diffraction. The structure of the zinc phosphate glasses can be described by substructures of the high-temperature modifications of the three crystalline compounds with x = 0, 0.33, and 0.5.