High‐Silica Zeolite SSZ‐61 with Dumbbell‐Shaped Extra‐Large‐Pore Channels

• DOI: 10.1002/anie.201405658
• Publication Date: 2014-08-01T23:27:58Z
• Authors: Stef Smeets; Dan Xie; Christian Baerlocher; Lynne B. McCusker; Wei Wan; Xiaodong Zou; Stacey I. Zones
• Keywords: Dumbbell; Heteroatom

The synthesis of the high-silica zeolite SSZ-61 using a particularly bulky polycyclic structure-directing agent and subsequent elucidation its unusual framework structure with extra-large dumbbell-shaped pore openings are described. By information derived from variety X-ray powder diffraction electron microscopy techniques, complex structure, 20 Si atoms in asymmetric unit, could be determined full refined. at waist dumbbell only three-connected bonded to terminal O pointing into channel. Unlike six previously reported extra-large-pore zeolites, contains no heteroatoms can calcined easily. This, coupled possibility inserting catalytically active center channel between place H(+), afford intriguing potential for catalytic applications.