A tri-platinum complex containing a coordinatively naked platinum atom
A tri-platinum complex containing a coordinatively naked platinum atom
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含有配位裸铂原子的三铂络合物
作者：
T. Tanase;Y. Kudo;M. Ohno;K. Kobayashi;Y. Yamamoto
含有金属-金属键的铂和钯的多核团簇可以作为非均相催化剂表面的模型，它们的反应可以模拟这些表面上的反应1,2。无配体金属团簇可以在超分散凝聚相中形成，但由于它们的高反应活性，难以分离和表征。本文报道了一种三铂二膦配合物的制备，该配合物含有一个配位“裸”铂原子。该配合物中的金属团簇相对于其他三铂配合物是缺电子的。配体与裸铂的结合可以反映化学吸附物质在催化铂表面的结合。
POLYNUCLEAR clusters of platinum and palladium containing metal–metal bonds may serve as models of the surface of heterogeneous catalysts, and their reactions may mimic those on such surfaces1,2. Ligand-free metal clusters can be created in an ultradispersed condensed phase3, but they are difficult to isolate and characterize because of their high reactivities. Here we report the preparation of a tri-platinum diphosphine complex that con-tains a coordinatively 'naked' platinum atom. The metal cluster in this complex is electron-deficient relative to other tri-platinum complexes. Bonding of ligands to the naked platinum could reflect that of chemisorbed species on catalytic platinum surfaces.