Capture of Periodate in a {W₁₈O₅₄} Cluster Cage Yielding a Catalytically Active Polyoxometalate [H₃W₁₈O₅₆(IO₆)]⁶⁻ Embedded with High‐Valent Iodine

Abstract

Periodate in the mix: The first crystallographically characterized tungstatoperiodate cluster of the form β*-[H3W18O56(IO6)]6−, with periodate embedded inside a {W18O54} cluster cage, remains intact in solution, and is the first in a new class of [HnW18O56(XO6)]m− heteropolyoxotungstates. Mass spectrometry, and electrochemical and catalytic studies, verified by DFT calculations, reveal its unusual physical properties. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2008/z800041_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.