IM-17: a new zeolitic material, synthesis and structure elucidation from electron diffraction ADT data and Rietveld analysis.

Yannick Lorgouilloux (1) , Mathias Daudin (1) , Enrico Mugnaioli (2) , Claire Marichal (1) , Philippe Caullet (1) , Nicolas Bats (3) , Ute Kolb (2, 4) , Jean-Louis Paillaud (5)

1 LMPC - Laboratoire de Matériaux à Porosité Contrôlée
2 Institute of Physical Chemistry
3 IFPEN - IFP Energies nouvelles
4 IAG - Institute of Applied Geosciences [Darmstadt]
5 IS2M - Institut de Science des Matériaux de Mulhouse

The synthesis and the structure of IM-17, a new germanosilicate with a novel zeolitic topology, prepared hydrothermally with decamethonium as the organic structure directing agent, are reported. The structure of calcined and partially rehydrated IM-17 of chemical formula per unit cell |(H2O)14.4|[Si136.50Ge39.50O352] was solved ab initio using electron diffraction ADT data in the acentric Amm2 (setting Cm2m) space group and refined by the Rietveld method. This new zeolite framework type contains a 3D pore system made of intersecting 12, 10 and 8-ring channels.

Keywords: Zeolite

Domains: Chemical Sciences; Catalysis

Yannick Lorgouilloux, Mathias Daudin, Enrico Mugnaioli, Claire Marichal, Philippe Caullet, et al.. IM-17: a new zeolitic material, synthesis and structure elucidation from electron diffraction ADT data and Rietveld analysis.. RSC Advances, 2014, 4 (37), pp.19440-19449. ⟨10.1039/c4ra01383b⟩. ⟨hal-01027505⟩