Aluminium-free (Si, Ga)-ferrierite with Si/Ga = 6.6 has been prepared by direct synthesis and its orthorhombic unit cell parameters are a= 19.01(1), b= 14.15(1), and c= 7.481(3)Å, the unit cell volume being 0.55% larger than for (Si, Al)-ferrierite; solid-sate n.m.r. spectroscopy shows that pyrrolidine, the template molecule, is essentially intact in the channels of the new material.
B. Sulikowski and J. Klinowski, J. Chem. Soc., Chem. Commun., 1989, 1289 DOI: 10.1039/C39890001289
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