Lanthanoid %26quot;Bottlebrush%26quot; Clusters: Remarkably Elongated Metal-Oxo Core Structures with Controllable Lengths

作者：D' Alessio Daniel; Sobolev Alexandre N; Skelton Brian W; Fuller Rebecca O; Woodward Robert C; Lengkeek Nigel A; Fraser Benjamin H^*; Massi Massimiliano; Ogden Mark I

来源：Journal of the American Chemical Society, 2014, 136(43): 15122-15125.

DOI：10.1021/ja506677h

Large metal-oxo clusters consistently assume spherical or regular polyhedral morphologies rather than high-aspect-ratio structures. Access to elongated core structures has now been achieved by the reaction of lanthanoid salts with a tetrazole-functionalized calixarene in the presence of a simple carboxylate co-ligand. The resulting Ln(19) and Ln(12) clusters are constructed from apex-fused Ln(5)O(6) trigonal bipyramids and are formed consistently under a range of reaction conditions and reagent ratios. Altering the carboxylate co-ligand structure reliably controls the cluster length, giving access to a new class of rod-like clusters of variable length.

• 出版日期2014-10-29