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Issue 37, 2014
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Assignment of the oxidation states of Zr and Co in a highly reactive heterobimetallic Zr/Co complex using X-ray absorption spectroscopy (XANES)

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Abstract

The reduced heterobimetallic complex (THF)Zr(MesNPiPr2)3CoN2 (1) has been examined along with a series of structurally similar reference compounds using X-ray absorption near edge structure (XANES) spectroscopy. Complex 1 has been shown to be highly reactive, often via one-electron pathways that might be expected for a d1 ZrIII complex. However, the presence of two strongly interacting metals in complex 1 renders the assignment of oxidation states ambiguous. Both Zr and Co K-edge XANES spectra reveal that the most accurate description of complex 1 is that of a ZrIV/Co−I zwitterion. Electronic structure calculations support this assignment.

Graphical abstract: Assignment of the oxidation states of Zr and Co in a highly reactive heterobimetallic Zr/Co complex using X-ray absorption spectroscopy (XANES)

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Publication details

The article was received on 25 May 2014, accepted on 05 Aug 2014 and first published on 05 Aug 2014


Article type: Paper
DOI: 10.1039/C4DT01534G
Citation: Dalton Trans., 2014,43, 13852-13857
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    Assignment of the oxidation states of Zr and Co in a highly reactive heterobimetallic Zr/Co complex using X-ray absorption spectroscopy (XANES)

    J. P. Krogman, J. R. Gallagher, G. Zhang, A. S. Hock, J. T. Miller and C. M. Thomas, Dalton Trans., 2014, 43, 13852
    DOI: 10.1039/C4DT01534G

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