Using powder X-ray diffraction and Te K-edge EXAFS data, discrete tetrahedral TeO42− (Te–O 1.81–1.85 Å) groups have been refined in the structure of Cs2TeO4; 125Te MASNMR confirms the presence of tetrahedral units. The use of a combined data analysis technique allows the determination of light atom positions in the presence of heavy elements using X-ray methods alone.
Weller, M. T., Pack, M. J., Binsted, N., & Dann, S. E. (1999). The structure of cesium tellurate (VI) by combined EXAFS and powder X-ray diffraction. Journal of Alloys and Compounds, 282(1-2), 76-78. https://doi.org/10.1016/S0925-8388(98)00849-4