An Energetic Study of the Templating Ability of Diquaternary Cations in Zeolite Synthesis

The efficacy of a template can be rationalized in terms of the energies of the host-template nonbonding interactions.This approach is used to investigate the relationship between zeolite products and the diquat template molecules in their synthesis.The systematic syn~thesis results,especially the diquat chain length dependence of the products,ZSM-23,ZSM-50,NU-87,and ZSM-12 are rationalized quantitatively.