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A number of 1,4-diazabicyclo[2,2,2]octane (DABCO) derivatives are used as structure-directing agents in high-silica, zeolite syntheses in the presence and absence of Al 3+ , B 3+ and Zn 2+ . Several high-silica products including phases with unknown structure are synthesized. The results suggest that the product selectivity can be influenced by methyl-substitution...
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