Manganese decacarbonyl, reaction with

The reactions of perfluoro-(l-methylpropenyl)silver with chromium-(p. 292), manganese- and rhenium- (p. 298), iron- (p. 303), and cobalt-halogen compounds (p. 318), and its redox reactions with the decacarbonyl-dimetallate ions [Ma(CO)i ] (M = Cr, Mo, or W) (p. 292), have already been described. With di(7r-Qrclopentadienyl)-titanium and -zirconium dichlorides, however, only the corresponding difluorides (w-C5H )aMFa (M = Ti or 7jl) are obtained. ... 

Finally, manganese carbonyl complexes also show potential for effecting interesting phase transfer catalyzed carbonylation reactions. Alkynes react with carbon monoxide and methyl iodide in methylene chloride, using 5N NaOH as the aqueous phase, benzyl-triethylammonium chloride as the phase transfer catalyst, and either bromopentacarbonylmanganese or dimanganese decacarbonyl to afford... 

The decacarbonyls of manganese, technetium, and rhenium, of formula M2(CO)io, have terminal carbonyl groups and a metal-metal bond. The molecular symmetry is D d with the two M(CO)s fragments in a staggered conformation. The heterodinuclear decacarbonyl MnRe(CO)io is also known as obtained by the redox reaction of a rhenium pentacarbonyl halide with the pentacarbonylmanganate(-I) anion at room temperature (at 160 °C or higher, the heterodinuclear carbonyl tends to form the homodinuclear compounds with an equilibrium constant close to the statistical value ). The X-ray diffraction stndy of MnRe(CO)io has shown the Mn-Re distance of 2.909 A to be shorter than the sum of the covalent radii obtained from the homodinuclear compounds (Table 3). 

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