Ru3 j

Fig. 20. Metal cage geometries of (a) [Ru3(/i3-C12Hls)(CO)8(AuPPh3)3] (b) [Ru3 (/j.3-COMeKCO)9(AuPPha)3 ] (c) [HRu4(CO)12(AuPPh3)3] and (d) [HRu4(CO)12(Au2dppm) (AuPPhj)].

Figure 5.7 Spectra of [Ru3( j,3-0)( j,-CH3C02)6(C0)(py)]2( J,-BL) in the mixed valent (—1) state where BL = pyrazine-d<( (pz-d, ), 2-methylpyrazine (mpz), 2,5-dimethylpyrazine, or 2-chloropyrazine (clpz).

Fig. 7.12 Peak area ratios of the RuO peak with respect to the Ru metallic peak (Ru VRu°), as calculated from AP-XPS spectra of Ru3/J for Ru nanoparticles under CO oxidation reaction conditions of 200 mTorr O2 and 80 mTorr CO (CO/O2 0.4)...

Bron M, Bogdanoff P, Fiechter S, Hilgendorff M, Radnik J, Dorbandt I, Schulenburg H, Tributsch HJ (2001) Carbon supported catalysts for oxygen reduction in acidic media prepared by thermolysis of Ru3(CO)i2. Electroanal Chem 517 85-94... 

During the chemisorptions of Ru3(CO)i2 or Os3(CO)i2 on silica, the first step with the surface silanols was to produce a covalent bonding with the silica surface by oxidative addition of the silanol group to the metal-metal bond of the clusters. The nature of surface molecular species [=Si-0)(M3( x-H)(CO)io)j covalently linked to the silica surface (M = Ru, Os) was clearly defined and structurally characterized by a series of physical and chemical techniques, including mass balance taking into account the evolution of two molecules of CO and one molecule of hydrogen [27, 33, 35]. 

RU3(CO)i2 Si02, Ti02, AI2O3, MgO Adsorption from solution and thermal treatment under H2 [Ru]l2/Si02 [RuJs/TiOj [Rud0Al)J/Al203 [Ru3(OMg)d/MgO different Ru species and different catalytic behavior in CO hydrogenation [70]... 

Finally, the surface-mediated synthesis of ruthenium carbonyl complexes has also been used to prepare supported ruthenium particles. Using silica as a reaction medium and conventional salts, apart from Ru3(CO)i2, mononuclear Ru(CO)j, and high nuclearity carbonyl-derived species can be obtained by CO reductive carbonylation [127, 128]. This opens new routes to preparing tailored supported ruthenium particles. 

Ru3((1-0)(L)3(0C0R)J+ complexes (R=Me, Et L=H20, PPh anions not specified) are made by reaction of RuCl and acetic or propionic acids with water or PPh3 [690],... 

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