Sodalites of the composition Cd[BeGeO]X X = S, Se, Te have been synthesised by hydrothermal reaction of CdO, BeO, GeO and X at 750°C and 2kbar. The materials crystallise with the cubic sodalite unit cell with an ordered Be/Ge framework in the space group P43n. Their structures have been refined from powder x-ray diffraction data in order to delineate the dimensions of the CdX units in the sodalite cage and the intercage separation of these units. Infra-red, UV-VIS spectra of these materials are also reported. UV-VIS data demonstrate that the CdX units do not interact electronically.
Dann, S. ., & Weller, M. T. (1997). Synthesis and structure of cadmium chalcogenide beryllogermanate sodalites. Studies in Surface Science and Catalysis, 1997(105), 2131-2138. https://doi.org/10.1016/S0167-2991(97)80682-9