Carbonyl complexes clusters

Nakabayashi, M., M. Yamashita, and Y. Saito, Preparation of size-controlled ruthenium metal particles on carbon from hydro-carbonyl cluster complex. Chem. Lett., 1275-1278 (1994). 

General Methods. Methanol used in kinetic runs was distilled from sodium methoxide or calcium hydride in a nitrogen atmosphere before use. Freshly distilled cyclohexanol was added to the methanol in the ratio 6.0 ml cyclohexanol/200 ml MeOH and was used as an internal standard for gas chromatographic (GC) analysis. Benzaldehyde was distilled under vacuum and stored under nitrogen at 5°. Other aldehydes (purchased from Aldrich) were also distilled before use. The corresponding alcohols (purchased from Aldrich) were distilled and used to prepare GC standards. All metal carbonyl cluster complexes were purchased from Strem Chemical Company and used as received. Tetrahydrofuran (THF) was distilled from sodium benzophenone under nitrogen before use. 

Cabeza, J.A., in Braunstein, P., Oro, L.A., Raithby, P.R. (Eds.), Homogeneous Catalysis with Ruthenium Carbonyl Cluster Complexes Metal Clusters in Chemistry, Vol. 2. Wiley-VCH GmbH, Weinheim,... 

Initial attack of hydroxide ions onto Ni(CO)4 gives as yet uncharacterized species,1 which readily condense with unreacted Ni(CO)4 to give variable mixtures of [Ni5(CO)12]2- and [Ni6(CO)12]2-. Hydrolysis of [Ni5(CO)12]2- in water produces [Ni6(CO)12]2-, according to the above reaction. The dianion [Ni CO) 2]2- is isolated as the tetramethylam-monium salt in a crystalline state in 70% yield. The [Ni6(CO)12]2 dianion is a starting material for the synthesis of several other homo- and heteromet-allic nickel carbonyl cluster complexes.1-9... 

The [Pt6(CO)12]2- dianion can be used as starting material for the synthesis of other platinum carbonyl cluster complexes.1,3... 

Fluorinated ionic liquids, characteristics, 1, 854 Fluorinated molecules, coordination, 1, 727 Fluorinated thiols, in nanoparticle preparation, 12, 80 Fluorination, and iridium carbonyl cluster complexes, 7, 299... 

In the presence of water, Fe2(CO)Q adsorbed on the external surfaces of zeolite NaY or NaX is readily converted to HFe3(CO)i2 at 297-333 K. It is proposed (145) that the active Fe(CO)4 radical species generated by decomposition of Fe2(CO)9 or Fe3(CO)i2 enters the zeolite framework to rebuild stable carbonyl cluster complexes such as [Fe3(CO)n] and [HFe3(CO)n]" as illustrated in the following reaction scheme ... 

Adams RD, Captain B, Smith JL Jr, Hall MB, Beddie CL, Webster CE (2004) Superloading of tin ligands into rhodium and iridium carbonyl cluster complexes. Inorg Chem 43 7576... 

The dehydrogenative silylation of olefins, which is closely related to hydrosilylation, is effectively promoted by a ruthenium carbonyl cluster complex, Ru3(CO)12. The produced vinylsilane was the trans-isomer in every case examined76 (equation 26). 

A pentanuclear mixed chalcogen/carbonyl cluster complex with ethanethiolate ligands is the cobalt-containing species [Co5(SEt)5(CO)io], which was structurally characterized by X-ray methods (Fig. 22). 

Homogeneous Catalysis with Ruthenium Carbonyl Cluster Complexes Hydrogenation of Alkynes... 

Table 1 lists alkyne hydrogenation reactions which use ruthenium carbonyl cluster complexes as catalyst precursors. The contents of the table are discussed in the following paragraphs, which are classified according to the type of metal cluster complex used as catalyst precursor. 

Table 1. Homogeneous hydrogenation of alkynes promoted by homonuclear ruthenium carbonyl cluster complexes. 

---