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
将从正型炉膛电子枪炉中得到的铌,钽和钨金属蒸气与过量的芳烃共冷凝,得到双(η-芳烃)化合物[M(η-芳烃)2 ]( M = Nb,Ta或W)。类似地,锆和vapor蒸气与芳烃和三甲基膦的混合物产生弯曲的双(η-芳烃)化合物[M(η-芳烃)2(PMe 3)](M = Zr和Hf)。双(η-芳烃)钨化合物在稀酸水溶液中容易质子化,形成弯曲的双(η-芳烃)氢化阳离子[W(η-芳烃)2 H] [PF 6 ]。给出了新化合物的光谱性质和其他表征数据。