A study on zeolite synthesis from diquaternary ammonium compounds; the effect of changing end-group heterocycles in the HF/SiO2 synthesis of molecular sieves

Abstract In recent years some surprising discoveries have been made in finding new multidimensional zeolites with 10-ring pores, using diquaternary ammonium compounds based upon the use of N-methyl pyrrolidines connecting various chain lengths. In this study we focus on changing the size and geometric constraints of the charged head groups at the end of each chain, and then study the results for zeolite synthesis in fluoride media.