Rietveld refinement of synchrotron X-ray powder diffraction data of SS
Z-16 shows that this zeolite is the aluminosilicate analogue of SAPO-5
6 (AFX). SSZ-16 contains a three-dimensional pore system with pores bo
unded by eight tetrahedral atoms, and is a member of the ABC... type o
f zeolites with an AABBCCBB... layer sequence. There is a very good fi
t between the size of the organic structure-directing agents used duri
ng the zeolite synthesis and the size of the large cages of SSZ-16.