Atomistic origin of germanate anomaly in GeO2 and Na-germanate glasses: insights from two-dimensional 17O NMR and quantum chemical calculations.

Abstract

The prominent problem in archetypal germanate glasses is the germanate anomaly where the density exhibits maxima at 15-20 mol % of the alkali oxide content. Here we report (17)O two-dimensional NMR spectra for GeO(2) and Na-germanate glasses where the presence of both bridging oxygen linking ([4])Ge and highly coordinated Ge (([5,6])Ge-O-([4])Ge) and… (More)

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Cite this paper

@article{Lee2006AtomisticOO, title={Atomistic origin of germanate anomaly in GeO2 and Na-germanate glasses: insights from two-dimensional 17O NMR and quantum chemical calculations.}, author={Sung Keun Lee and Bum Han Lee}, journal={The journal of physical chemistry. B}, year={2006}, volume={110 33}, pages={16408-12} }