Attempts to form extended supramolecular structures incorporating hafnium(IV) complexes of p-sulfonatocalixarene resulted in the serendipitous formation of two polynuclear-hafnium clusters. Subsequent reaction between hafnium triflate and 1 M sulfuric or p-toluenesulfonic acid solutions also led to the formation of the same clusters, identified as cations based on Hf-17 and Hf-4, respectively. (c) 2006 Elsevier B.V. All rights reserved.
|Number of pages||5|
|Journal||Inorganica Chimica Acta|
|Publication status||Published - 1 Mar 2007|