Iron Carbide–Sulfide Carbonyl Clusters

Carbonyl iron therapy for iron deficiency anemia.

To determine if elemental carbonyl iron powder is safe and effective therapy for iron deficiency anemia, 20 nonanemic and 32 anemic volunteers were studied. Single doses of 1,000 to 10,000 mg of carbonyl iron (15 to 150 times the 65 mg of iron in the usual dose of ferrous sulfate) were tolerated by nonanemic volunteers with no evidence of toxicity and only minor gastrointestinal side effects. A...

Ferrocenyl Phosphine Substitution on Triruthenium Carbonyl Clusters

Iron indenyl carbonyl compounds: CO-releasing molecules.

New CO-releasing molecules, CO-RMs, based on indenyl iron carbonyls have been identified. Half-lives for carbon monoxide (CO) release, (1)H NMR, (13)C NMR, IR, mass spectra, elemental analysis and biological data have been determined for the compounds. Limited correlations have been made between half-lives and ΔG(‡) for CO release and spectroscopic parameters, ν(CO) and δ((13)CO). X-ray structu...

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...