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    NHC Versus Pyridine: How “Teeth” Change the Redox Behavior of Iron(II) Complexes

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    Type
    Article
    Authors
    Weiss, Daniel T.
    Anneser, Markus R.
    Haslinger, Stefan
    Pöthig, Alexander
    Cokoja, Mirza
    Basset, Jean-Marie cc
    Kühn, Fritz E.
    KAUST Department
    Chemical Science Program
    KAUST Catalysis Center (KCC)
    Date
    2015-10-06
    Online Publication Date
    2015-10-06
    Print Publication Date
    2015-10-26
    Permanent link to this record
    http://hdl.handle.net/10754/622437
    
    Metadata
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    Abstract
    A series of octahedral iron(II) complexes with tetradentate NHC/pyridine hybrid ligands containing up to three pyridyl units was designed to study the influence of NHC and pyridine donors on the electronic structure of the metal center. Structural analysis of the iron complexes by NMR spectroscopy and single-crystal X-ray diffraction reveals different coordination modes of the ligand depending on the linkage of the different donor moieties. The oxidation potentials of all complexes correlate linearly with the number of NHC moieties coordinated to iron, as shown by cyclic voltammetry. The influence, although minor, of structural properties on the oxidation potential and (in one case) the influence of the oxidation state of the coordination geometry of the hybrid ligand are also demonstrated.
    Citation
    Weiss DT, Anneser MR, Haslinger S, Pöthig A, Cokoja M, et al. (2015) NHC Versus Pyridine: How “Teeth” Change the Redox Behavior of Iron(II) Complexes. Organometallics 34: 5155–5166. Available: http://dx.doi.org/10.1021/acs.organomet.5b00732.
    Sponsors
    D.T.W. and S.H. gratefully acknowledge support from the TUM Graduate School.
    Publisher
    American Chemical Society (ACS)
    Journal
    Organometallics
    DOI
    10.1021/acs.organomet.5b00732
    Relations
    Is Supplemented By:
    • [Dataset]
      Weiss, D. T., Anneser, M. R., Haslinger, S., Pöthig, A., Cokoja, M., Basset, J.-M., & Kühn, F. E. (2015). CCDC 1420288: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc1jnxrv. DOI: 10.5517/cc1jnxrv HANDLE: 10754/624467
    • [Dataset]
      Weiss, D. T., Anneser, M. R., Haslinger, S., Pöthig, A., Cokoja, M., Basset, J.-M., & Kühn, F. E. (2015). CCDC 1420289: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc1jnxsw. DOI: 10.5517/cc1jnxsw HANDLE: 10754/624468
    • [Dataset]
      Weiss, D. T., Anneser, M. R., Haslinger, S., Pöthig, A., Cokoja, M., Basset, J.-M., & Kühn, F. E. (2015). CCDC 1420290: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc1jnxtx. DOI: 10.5517/cc1jnxtx HANDLE: 10754/624469
    • [Dataset]
      Weiss, D. T., Anneser, M. R., Haslinger, S., Pöthig, A., Cokoja, M., Basset, J.-M., & Kühn, F. E. (2015). CCDC 1420291: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc1jnxvy. DOI: 10.5517/cc1jnxvy HANDLE: 10754/624470
    • [Dataset]
      Weiss, D. T., Anneser, M. R., Haslinger, S., Pöthig, A., Cokoja, M., Basset, J.-M., & Kühn, F. E. (2015). CCDC 1420292: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc1jnxwz. DOI: 10.5517/cc1jnxwz HANDLE: 10754/624471
    ae974a485f413a2113503eed53cd6c53
    10.1021/acs.organomet.5b00732
    Scopus Count
    Collections
    Articles; Chemical Science Program; KAUST Catalysis Center (KCC)

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