Reactivity of transition metals

Figure Cl. 1.3. Relative reactivity of transition-metal clusters with H2 (full curves, log scale) and tire promotion...

Thus the reactivity of transition metal-carbene complexes, that is, whether they behave as electrophiles or nucleophiles, is well explained on the basis of the frontier orbital theory. Studies of carbene complexes of ruthenium and osmium, by providing examples with the metal in either of two oxidation states [Ru(II), Os(II) Ru(0), Os(O)], help clarify this picture, and further illustrations of this will be found in the following sections. 

The hydrogen-bonding interactions within the complexes W2CI4-(y-OR)2(OR)2(ROH)2 and V Cli y-OR)2(ORT)2(Rf0H)2 may provide the molecular analogues with which to model the structure and reactivities of transition metal oxide catalysts that possess surface hydroxyl groups. The thermal treatment which is often carried out in the pretreatment of metal oxides (leading to the loss of -OH... 

The Reactivity of Transition Metal Complexes with Small Molecules... 

THE REACTIVITY OF TRANSITION METAL COMPLEXES WITH OXYGEN... 

Despite the above aspects of the interaction of molecular oxygen with metal fragments, we will limit our electrochemical discussion to the reactivity of transition metal complexes with molecular oxygen in the context of modelling the dioxygen transport. 

The second part of the chapter will be dedicated to the reactivity of transition metal peroxides, either isolated or formed in solution in catalytic processes, toward several classes of substrates. Hopefully this survey, where particular emphasis is placed on the selectivity aspects of these reactions, will present to the readers the potential of metal catalyzed oxidations with peroxides and highlight the perspective for researchers in the field. 

Surface Reactivity of Transition Metal CVD Preciu sors... 

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