Aluminoborate‐Based Molecular Sieves with 18‐Octahedral‐Atom Tunnels

Abstract

A framework of AlO6 octahedra is present in the microporous aluminoborate HAl3B6O12(OH)4 (PKU-1; see picture), which was synthesized from AlCl3 in a boric acid flux. The octahedra share two or three edges with neighboring octahedra to form a framework with 18-ring tunnels along [001] and 10-ring tunnels along {100}. The borate groups share vertices with the octahedra, compensating the negative charge of the octahedral framework and almost completely blocking the 10-ring channels. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2003/z52263_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.