The present invention is to provide a hydrogen oxidation catalyst that does not contain platinum. Disclosed is a hydrogen oxidation catalyst that is a dinuclear transition metal complex having a chemical structure represented by the following general formula (1) or (2): ##STR00001##
wherein, in the general formulae (1) and (2), M.sup.1 and M.sup.2 are each independently Fe or Ru; Ar.sup.1 and Ar.sup.2 are each independently a cyclopentadienyl group or a pentamethylcyclopentadienyl group; Ar.sup.3 and Ar.sup.4 are each independently a divalent aromatic hydrocarbon group having 6 to 12 carbon atoms; and Ar.sup.5 is a monovalent aromatic hydrocarbon group having 6 to 12 carbon atoms, and in the general formula (2), R.sup.1 and R.sup.2 are each independently a hydrogen atom or a monovalent aliphatic hydrocarbon group having 1 to 3 carbon atoms.

Cyclopentadienyl platinum complexes bearing ethylenic unsaturation are efficient photocatalysts for hydrosilylation of compounds containing aliphatic carbon-carbon multiple bonds, while exhibiting extended dark time, and are particularly useful in addition-curable organopolysiloxane compositions.

Cyclopentadienyl platinum complexes bearing ethylenic unsaturation are efficient photocatalysts for hydrosilylation of compounds containing aliphatic carbon-carbon multiple bonds, while exhibiting extended dark time, and are particularly useful in addition-curable organopolysiloxane compositions.

The present invention provides novel Ruthenium-based transition metal complex catalysts comprising specific ligands, their preparation and their use in hydrogenation processes. Such complex catalysts are inexpensive, thermally robust, and olefin selective.

The present invention provides novel Ruthenium-based transition metal complex catalysts comprising specific ligands, their preparation and their use in hydrogenation processes. Such complex catalysts are inexpensive, thermally robust, and olefin selective.

The invention provides monoferrocenyl compounds of general formula (I). The invention also provides substrates labelled with the compounds, functionalised derivatives of the compounds and methods of using the compounds, functionalised derivatives and labelled substrates in electrochemical assays.

The invention provides monoferrocenyl compounds of general formula (I). The invention also provides substrates labelled with the compounds, functionalised derivatives of the compounds and methods of using the compounds, functionalised derivatives and labelled substrates in electrochemical assays.

The present invention relates to a method for the production of carbon nanotube structures.

A method for synthesizing (R)-(−)-1-((S)-2-diphosphino ferrocene)-ethyl-diphosphine by: 1) adding vinylferrocene, a chiral catalyst, and toluene to a first drying reactor; adding a phosphorus-hydrogen compound to the first drying reactor and allowing reactants in the first drying reactor to react; cooling the first drying reactor; adding water dropwise to the first drying reactor; extracting, drying, and recrystallizing a product to yield (R)-1-ferrocenylethyl-diphosphine; 2) adding the (R)-1-ferrocenylethyl-diphosphine and ether to a second drying reactor; adding a hexane solution including diethylzinc to the second drying reactor and allowing reactants in the second drying reactor to react; adding a phosphorus-chlorine compound dropwise to the second drying reactor, and heating and refluxing the reaction mixture in the second drying reactor; adding water to quench the reaction mixture in the second drying reactor; and extracting, drying, and recrystallizing the reaction mixture.

The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.