A Germanosilicate Structure with 11×11×12‐Ring Channels Solved by Electron Crystallography1. Issue 23 (9th April 2014)

• Record Type: Journal Article
• Authors: Hua, Wei; Chen, Hong; Yu, Zheng‐Bao; Zou, Xiaodong; Lin, Jianhua; Sun, Junliang
• Is Part Of: Angewandte Chemie international edition. Volume 53:Issue 23(2014)
• Page Start: 5868
• Page End: 5871
• Publication Date: 2014-04-09
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201309766
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Zeolites have been widely used in industry owing to their ordered micropores and stable frameworks. The pore sizes and shapes are the key parameters that affect the selectivity and efficiency in their applications in catalysis, sorption, and separation. Zeolites with pores defined by 10 and 12 TO₄ tetrahedra are often used for various catalytic processes. To optimize the performance of zeolites, it is extremely desirable to fine‐tune the pore sizes/shapes. The first germanosilicate zeolite with a three‐dimensional 11×11×12‐ring channel system, PKU‐16 (PKU, Peking University) is presented. Nanosized PKU‐16 was structurally characterized by the new three‐dimensional rotation electron diffraction (RED) technique. PKU‐16 is structurally related to the zeolite β polymorph C (BEC, 12×12×12‐ring channels) by rotating half of the four‐rings in double <italic>mtw</italic> units.</p> </abstract>