From [M equivalent to N] and [M-N-E] complexes to models for metal oxidoreductases

Sellmann D, Sutter J (2003)


Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2003

Journal

Publisher: Wiley-VCH Verlag

Book Volume: 629

Pages Range: 893-901

Abstract

The article reviews results of research that was initially aiming at complexes containing new and unusual [M-N-E] element combinations (M = transition metal, E = main group element), but soon turned into studies on model complexes for metal enzymes such as nitrogenases, hydrogenases or CO dehydrogenases, because several of the resulting [M-N-E] complexes exhibited reactions relevant to these enzymes. It could be shown that alkylation of transition metal thiolate nitride complexes gives alkylimido complexes when bulky and mild alkylation reagents, e.g. Ph3C+, are used. Hydride addition to [Ru(NO)(py(bu)S(4))](+) yielded [Ru(HNO)-(py(bu)S(4))], which contains a bifurcated [M-N(X,Y)] bridge. The diazene complex [mu-N2H2{Ru(PCy3)(S-4)}(2)] undergoes H+/D-2 and H+/D+ exchange reactions that enabled to rationalize the until then inexplicable 'N-2 dependent HD formation' catalyzed by nitrogenases. Out of a larger number of [Ni(NE)(S-3)] complexes, the compound [Ni(NHPPr3)(S-3)] proved capable to model structure and reactivity features of [NiFe] hydrogenases. The [Ni(L)(S-3)] complexes with L = N-3(-) and N(SiMe3)(2)(-) exhibit extremely high reactivity towards CO, CO2 and SO2. The reactions lead to NCO-, CN- and NSO- complexes and bear potential relevance for carbon monoxide dehydrogenase reactions.

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How to cite

APA:

Sellmann, D., & Sutter, J. (2003). From [M equivalent to N] and [M-N-E] complexes to models for metal oxidoreductases. Zeitschrift für Anorganische und Allgemeine Chemie, 629, 893-901.

MLA:

Sellmann, Dieter, and Jörg Sutter. "From [M equivalent to N] and [M-N-E] complexes to models for metal oxidoreductases." Zeitschrift für Anorganische und Allgemeine Chemie 629 (2003): 893-901.

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