A new crystalline phase (via amorphous intermediate), NCUZ-1, was obtained when MCM-41 (Si/Al = 9) was under prolonged heating in the mother liquid (which contains NaAlO2, [N(CH3)(4)](2)SiO3, SiO2, and surfactant C16H33N(CH3)(3)OH(aq) at 105 degreesC for