High Aluminum Ordering in SSZ-59: Residual 1H–27Al Dipolar Coupling Effects in 1H MAS NMR Spectra of Brønsted Acid Sites in Zeolites

The extra-large pore zeolite SSZ-59 was prepared with highly ordered Al atoms in T6 positions within the double-zigzag chains (dzc) running along the 14 MR channels. Narrow 1H MAS NMR signals of br...