Co (0) – Toluene in toluene solution

(Stabilized by 2-butyne) Co_n microclusters, (n ≤ 10) as evidenced by EPR

Active in the cyclococyclization of alkynes and nitriles;it has been proved successful even in hydroformylation reaction.

Suitable for the deposition of activated Co particles, ranging 2 – 3 nm in diameter, on C or solid oxide supports.

J. Mol. Catal., 56 (1989) 133.

Rhodium – Mesitylene in mesitylene solution

Rhodium – THF in THF solution

(Stabilized by trioctylamine (TOA))

Rh_n nanoclusters ranging 0.5 – 1 nm in diameter

Active in hydrogenation, hydroformylation and hydrosilylation reactions

Excellent precursors for the deposition of activated Rh particles,ranging 1 – 2 nm in diameter, on C or solid oxide supports.

J. Organomet. Chem., 487 (1995) 41 ; Sinth. Methods Organomet. and Inorg. Chemistry,

Catalysis, Brauer, Herrmann, Vol.10, 64-71 (2002).

An example of the catalytic activity and selectivity of homogeneous catalysts:

Idrosilylation of vinyl compounds with a Pt-mesitylene solution obtained via MVS technique.

In analogous conditions a Pt “Karstedt” catalyst does not catalyse the reaction.

Rhodium – Mesitylene in mesitylene solution

Rhodium – THF in THF solution

(Stabilized by trioctylamine (TOA))

Rh_n nanoclusters ranging 0.5 – 1 nm in diameter

Active in hydrogenation, hydroformylation and hydrosilylation reactions

Excellent precursors for the deposition of activated Rh particles,ranging 1 – 2 nm in diameter, on C or solid oxide supports.

J. Organomet. Chem., 487 (1995) 41 ; Sinth. Methods Organomet. and Inorg. Chemistry,

Catalysis, Brauer, Herrmann, Vol.10, 64-71 (2002).

Palladium (0) – Mesitylene in mesitylene solution

(Stabilized by TOA)

Pd_n nanoparticles ranging 0.5 - 1 nm

Active in Heck reactions

Suitable for the deposition of active Pd nanoparticles, ranging 1 – 2 nm in diameter, on C or solid oxide supports

2Th European Catalysis Symposium Pisa (Italy), 23-26 September 2001, Abstract P33

Co (0) – Toluene in toluene solution

(Stabilized by 2-butyne) Co_n microclusters, (n ≤ 10) as evidenced by EPR

Active in the cyclococyclization of alkynes and nitriles;it has been proved successful even in hydroformylation reaction.

Suitable for the deposition of activated Co particles, ranging 2 – 3 nm in diameter, on C or solid oxide supports.

J. Mol. Catal., 56 (1989) 133.

Fe(0) – Cycloolefins in aliphatic solvents

Active catalysts for the cyclotrimerization of alkynes and for hydroformylation reactions

Suitable for the deposition of active Fe nanoparticles on solid supports and for the preparation of magneto fluids

Au (0) – Acetone in acetone solution

Au_n microclusters (n<10) stabilized by acetone; as shown by TOF-MS analyses

Active catalysts in oxygenation reactions with molecular oxygen

Platinum (0) – Mesitylene in mesitylene solution

(Stabilized by vinylsiloxanes)

Pt_n nanoparticles ranging 0.5 - 1 nm, as evidenced by TOF-MS analysis

Excellent catalyst for hydrosilylation reactions

Excellent precursors for the deposition of Pt nanoparticles on C or solid oxide supports

J. Organomet. Chem., 451 (1993) C4;