F205 (2004). An ordered array of cadmium clusters assembled in zeolite A.
HRTEM image of Cd-containing zeolite A, viewed down the  direction. The material is very stable under the electron beam. The inset shows cadmium cluster (Cd98+) in the sodalite cage of zeolite A. [J. E. Readman, P. D. Barker, I. Gameson, J. A. Hriljac, W. Z. Zhou, P. P. Edwards and P. A. Anderson, J. Chem. Soc. Chem. Commun. 736–737 (2004)].