Reductive preparation of bis(arene)metal complexes from metal halides in solution using potassium atoms
作者:Pelham N. Hawker、Peter L. Timms
DOI:10.1039/dt9830001123
日期:——
Some known bis(arene) complexes of zerovalent Ti, V, Cr, and Mo have been synthesised in a new way by stepwise reduction of solutions of the metal chlorides in tetrahydrofuran and arene, using K atoms condensed into the solutions at –110 °C under vacuum in a rotary reactor. The extent of reduction was followed by observing colour changes in the solutions. With Ti and V, the initial products were anionic
A comparison of the activities of conventionally precipitated metals on charcoal, deposited organometallic clusters and metal colloids for liquid-phase hydrogenation has been made under standard conditions in order to assess the effect of particle size. The strong SMSI effect known for TiO2 SUPports was simulated on charcoal by doping the surface with small amounts of Ti(0) and subsequent oxygenation.
GREEN M. L. H., J. ORGANOMETAL. CHEM., 1980, 200, NO 1, 119-132