Reaction with actinide oxide halides

LANTHANIDE AND ACTINIDE HALIDES AND OXIDE HALIDES 9.3.1 Reactions of phosgene with lanthanide oxide halides... 

The intermetallic compounds are synthesized by heating mixtures of actinide oxides or halides with finely divided noble metal powders in pure hydrogen. Protactinium metal was prepared in a modified version of the van Arkel-de Boer procedure protactinium iodide, formed by reaction between iodine and protactinium carbide, was thermally dissociated on a resistance heated tungsten wire (6,7) ... 

Oxidative addition of organic halides to low-valent metal complexes generates reactive metal alkyls that can then be used in insertion, coupling, carbonylation-decar-bonylation and cyclization reactions for organic synthesis. These transformations can be made catalytic after development of the stoichiometric chemistry using the more stable metal alkyls. This section surveys the reactions of alkyl, aryl and acyl halides with transition metal complexes of the groups IIIA (lanthanides and actinides), IVA-VIII and IB. 

Scandium group elements as well as the lanthanides form allyl complexes in which the central atom has H- 3 oxidation state, while the actinides give compounds possessing + 4 oxidation states (Table 7.14). These complexes are formed by reactions of metal halides with allyl compounds of magnesium, lithium, tin, etc. " " ... 

Cyclopentadienyl organometallic compounds can be prepared by a variety of reactions [49, 50]. The general method for actinides in the in and iv oxidation states is by reaction of potassium or sodium cyclopentadienide with the anhydrous actinide halide (AnX ) in an organic solvent such as tetrahydrofuran (THF), benzene, or diethyl ether. 

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