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Issue 14, 2014
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Thermodynamics and high-pressure kinetics of a fast carbon dioxide fixation reaction by a (2,6-pyridinedicarboxamidato-hydroxo)nickel(II) complex

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Abstract

The previously reported carbon dioxide fixation reaction by the planar terminal hydroxide complex [Ni(pyN2Me2)(OH)]1− in DMF has been further characterized by determination of the equilibrium constants K298eq = 2.4 ± 0.2 × 105 M−1 and K223eq = 1.3 ± 0.1 × 107 M−1, as well as the volume of activation for the CO2 binding (ΔV≠223on = −21 ± 3 cm3 mol−1) and back decarboxylation (ΔV≠223off = −13 ± 1 cm3 mol−1) by high-pressure kinetics. The data are consistent with an earlier DFT computation, including the probable nature of the transition state, and support designating the reaction as one of the most completely investigated carbon dioxide fixation reactions of any type.

Graphical abstract: Thermodynamics and high-pressure kinetics of a fast carbon dioxide fixation reaction by a (2,6-pyridinedicarboxamidato-hydroxo)nickel(ii) complex

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Publication details

The article was received on 24 Oct 2013, accepted on 29 Jan 2014 and first published on 26 Feb 2014


Article type: Communication
DOI: 10.1039/C3DT53004C
Citation: Dalton Trans., 2014,43, 5274-5279
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    Thermodynamics and high-pressure kinetics of a fast carbon dioxide fixation reaction by a (2,6-pyridinedicarboxamidato-hydroxo)nickel(II) complex

    O. Troeppner, D. Huang, R. H. Holm and I. Ivanović-Burmazović, Dalton Trans., 2014, 43, 5274
    DOI: 10.1039/C3DT53004C

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