摘要 |
Crystalline molecular sieves and their synthesis using quaternary N-methyl-diisoalkylammonium cations as organic structure directing agents are disclosed. The structure directing agent has the following structure (1): in which R1 is selected from hydrogen, a methyl group, an ethyl group, a propyl group, and a hydroxymethyl group; and R2, R3, R4 and R5 are independently selected from a methyl group, an ethyl group, and a propyl group. |