Synthesis of zerovalent bis(η-arene) compounds of zirconium, hafnium, niobium, tantalum, and tungsten using the metal vapours
作者:F. Geoffrey N. Cloke、Malcolm L. H. Green
DOI:10.1039/dt9810001938
日期:——
of the metals niobium, tantalum, and tungsten, derived from a positive hearth electron-gun furnace, with an excess of arenes gives the bis(η-arene) compounds [M(η-arene)2](M = Nb, Ta, or W). Similarly, zirconium and hafnium vapours with a mixture of arenes and trimethylphosphine give the bent bis(η-arene) compounds [M(η-arene)2(PMe3)](M = Zr and Hf). The bis(η-arene)tungsten compounds protonate readily