55527-82-7Relevant academic research and scientific papers
Product of ditoluenetitanium(0) oxidation with oxygen as a new catalyst for ethylene polymerization
Kvashina,Efimov,Chapysheva,Roshchupkina
, p. 2115 - 2117 (2007)
The reaction of ditoluenetitanium(0) with oxygen affords an intermediate oxidation product: a titanium(II) complex that catalyzes ethylene polymerization.
Highly dispersed metal clusters and colloids for the preparation of active liquid-phase hydrogenation catalysts
Bonnemann,Brijoux,Brinkmann,Dinjus,Fretzen,Joussen,Korall
, p. 323 - 333 (2008/10/08)
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.
Modeling macroscale metal vapor reactions: Synthesis of bis(η6-naphthalene)titanium
Morand, Pascale D.,Francis, Colin G.
, p. 56 - 61 (2008/10/08)
The interaction of metal vapors of Cr, V, and Ti with naphthalene, and selected naphthalene derivatives, has been studied by means of matrix-isolation UV-visible spectroscopy. The electronic spectra of the Cr and V products are analyzed in terms of their known bis(η6-arene)metal conformations via a simple molecular orbital ordering scheme. On the basis of the data for Cr and V, the spectra of the Ti species appear to be best assigned to an analogous bis(η6-naphthalene)titanium complex. Preliminary studies on the reactivity of this complex reveal that it is apparently thermally stable at 290 K under matrix conditions, although it exhibits high reactivity toward ether solvents even at 190 K.
Reductive Preparation of Bis(arene)metal Complexes from Metal Halides in Solution using Potassium Atoms
Hawker, Pelham N.,Timms, Peter L.
, p. 1123 - 1126 (2007/10/02)
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 deg 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 forms of the bis(arene) complexes, which were oxidised to give the zerovalent compounds.The method is a useful way of making 0.1-1 g samples of some bis(arene)titanium complexes and bis(naphthalene) complexes of V, Cr, and Mo which are otherwise accessible only by using the transition-metal atoms as reagents.
