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Synthesis and reactivity at the Ir-MeTpm platform: from κ1-N coordination to κ3-N-based organometallic chemistry

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Abstract

Reaction of [Ir(μ-Cl)(COE)2]2 (COE = cis-cyclooctene) with tris(3,5-dimethylpyrazol-1-yl)methane (MeTpm) affords [IrCl(κ1-N-MeTpm)(COD)] (1) (COD = 1,5-cyclooctadiene). The formation of 1 implies the transfer dehydrogenation of a COE ligand to give COD and COA (cyclooctane). A mechanistic proposal based on DFT calculations that explains this iridium promoted process has been disclosed. Additionally, reactivity studies have allowed the preparation and characterization, including determination of the molecular structures of a number of iridium complexes with the MeTpm ligand in κ1, κ2 or κ3-N coordination modes. Moreover, the first example of an Ir-cyclooctyl complex featuring hydride and carbonyl ligands, whose solid state structure has been determined by X-ray diffraction methods, is reported.

Graphical abstract: Synthesis and reactivity at the Ir-MeTpm platform: from κ1-N coordination to κ3-N-based organometallic chemistry

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Publication details

The article was received on 15 Feb 2019, accepted on 22 Mar 2019 and first published on 25 Mar 2019


Article type: Paper
DOI: 10.1039/C9DT00703B
Citation: Dalton Trans., 2019, Advance Article

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    Synthesis and reactivity at the Ir-MeTpm platform: from κ1-N coordination to κ3-N-based organometallic chemistry

    F. J. Fernández-Alvarez, V. Polo, P. García-Orduña, F. J. Lahoz, J. J. Pérez-Torrente, L. A. Oro and R. Lalrempuia, Dalton Trans., 2019, Advance Article , DOI: 10.1039/C9DT00703B

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