Altering Charges on Heterobimetallic Transition‐Metal Carbonyl Clusters

Ferrocenyl Phosphine Substitution on Triruthenium Carbonyl Clusters

Synthesis and Spectroscopic Investigations of New Linear Heterobimetallic Clusters

Z. Naturforsch. 55 b, 238-242 (2000); received Oktober 10, 1999 IR Data, Chalcogenides, Molybdenum, Tungsten Red-brown crystals of a new bis(thiomolybdate) complex [Me4N]3[(MoOS3)2Ag] were formed at room temperature through the reaction of a solution of [Me4N]2[MoOS3] in MeCN with solid AgCN. They are monoclinic, space group P2i/c with unit cell parameters a = 16.662(9), b = 9.464(3), c = 17.89...

Ruthenium and osmium carbonyl clusters incorporating stannylene and stannyl ligands.

The reaction of [Ru(3)(CO)(12)] with Ph(3)SnSPh in refluxing benzene furnished the bimetallic Ru-Sn compound [Ru(3)(CO)(8)(mu-SPh)(2)(mu(3)-SnPh(2))(SnPh(3))(2)] which consists of a SnPh(2) stannylene bonded to three Ru atoms to give a planar tetra-metal core, with two peripheral SnPh(3) ligands. The stannylene ligand forms a very short bond to one Ru atom [Sn-Ru 2.538(1) A] and very long bonds...

Exafs Studies of Oxide Supported Osmium Carbonyl Clusters

The reactions of triosmium carbonyl clusters on functionalised high surface area silicas have been monitored by 0s L(II1) edge EXAFS. Interaction of [OS~(CO)~~] with HS(CH2)jSIL affords HOS~(CO)~~[S(CH~)~SIL], which was structurally characterised using spherical wave methods to analyse the EXAFS data. Subsequent thermolysis in vacuo yields a new material. Coordination to " ~ 2 CO groups, 0 oxyg...

Lithium-promoted hydrogenation of carbon dioxide to formates by heterobimetallic hydridozinc alkoxide clusters.

The remarkably distinct reactivity of hydridozinc heterobimetallic cubanes [(HZnOtBu)4-n(thf LiOtBu)n] 1a-1d towards CO2 is reported--the hydride transfer from Zn-H to CO2 is drastically accelerated in the presence of Li ions in 1b-1d which led to the respective metal formate hydrates; the systems are inspiring models for the selective conversion of water gas into formates on lithium-promoted Z...