Publication

Supramolecular cluster catalysis: facts and problems

Gabor Laurenczy
2004
Journal Articles

Abstract

By checking the chemistry underlying the concept of "supramolecular cluster catalysis" we identified two major errors in our publications related to this topic, which are essentially due to contamination problems. (1) The conversion of the "closed" cluster cation H3Ru3(C6H6K6Me6)(2)(O) (1) into the "open" cluster cation H2Ru3(C6H6)(C6Me6)(2)(O)(OH) (2), which we had ascribed to a reaction with water in the presence of ethylbenzene is simply an oxidation reaction which occurs in the presence of air. (2) The higher catalytic activity observed with ethylbenzene. which we had erroneously attributed to the "open" cluster cation H2Ru3(C6H6)(C6Me6)(2)(O)(OH) (2),was due to the formation of RuO2 (.) nH(2)O, caused by a hydroperoxide contamination present in ethylbenzene. (C) 2004 Elsevier B.V. All rights reserved.

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https://infoscience.epfl.ch/entities/publication/cf55065c-0bdc-41a2-a9b6-3a93f20ad25a

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Gabor Laurenczy
2004
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/cf55065c-0bdc-41a2-a9b6-3a93f20ad25a

About this result

Related concepts (14)

Coordination complex

A coordination complex is a chemical compound consisting of a central atom or ion, which is usually metallic and is called the coordination centre, and a surrounding array of bound molecules or ions, that are in turn known as ligands or complexing agents. Many metal-containing compounds, especially those that include transition metals (elements like titanium that belong to the periodic table's d-block), are coordination complexes. Coordination complexes are so pervasive that their structures and reactions are described in many ways, sometimes confusingly.

Metal carbonyl

Metal carbonyls are coordination complexes of transition metals with carbon monoxide ligands. Metal carbonyls are useful in organic synthesis and as catalysts or catalyst precursors in homogeneous catalysis, such as hydroformylation and Reppe chemistry. In the Mond process, nickel tetracarbonyl is used to produce pure nickel. In organometallic chemistry, metal carbonyls serve as precursors for the preparation of other organometallic complexes.

Coordination polymer

A coordination polymer is an inorganic or organometallic polymer structure containing metal cation centers linked by ligands. More formally a coordination polymer is a coordination compound with repeating coordination entities extending in 1, 2, or 3 dimensions. It can also be described as a polymer whose repeat units are coordination complexes.

Related publications (1)

Supramolecular cluster catalysis: facts and problems

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The reaction of alkynes with triangulo-clusters [Pt3(m-CO)3(PR3)3]