Structure description of ITQ-22.
a,Building unit used to describe the crystal
structure with the corresponding atom numbering.
Notice that with the exception of the
bridge T atom (T13),all other T atoms form part of this unit.The crystallographic mirror
plane passes through the inner 4MR (red:T atoms,green:oxygen atoms).
b,Upper view of zeolite ITQ-22 showing the bridge T13 atoms (blue).
c,Three-dimensional structure model of ITQ-22 zeolite showing the 8MR and