Heterobimetallic Mn/Co hybrid complexes composed of proximate organometallic and classical coordination sites

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2007
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Zhang, Huaxing
Dechert, Sebastian
Maurer, Jörg
Meyer, Franc
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Journal of Organometallic Chemistry. 2007, 692(14), pp. 2956-2964. ISSN 0022-328X. Available under: doi: 10.1016/j.jorganchem.2007.03.012
Zusammenfassung

A series of highly unsymmetric heterobinuclear Mn/Co complexes is reported, in which an organometallic CpMn(CO)2 fragment and a classical Werner-type cobalt(II) subunit are arranged in close proximity by means of a bridging pyrazolate. Two ligand scaffolds are employed that differ by the chelate size of the tripodal tetradentate {N4} binding site for cobalt. Molecular structures of three complexes with either nitrate or acetate coligands have been characterized by X-ray crystallography. IR and UV–Vis-spectroelectrochemistry reveals that oxidation of the heterobimetallic systems is highly localized at the organometallic manganese site, while electrochemical reduction occurs at cobalt. Structural and spectroscopic features as well as trends for the redox potentials of the MnI/MnII couple suggest that changes at the cobalt(II) Werner-type subunit have only minor effects on the properties of the organometallic site.

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540 Chemie
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Bridging ligands, N-functionalized cyclopentadienyl ligands, Manganese, Cobalt, Bimetallic complexes
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ISO 690ZHANG, Huaxing, Sebastian DECHERT, Jörg MAURER, Michael LINSEIS, Rainer F. WINTER, Franc MEYER, 2007. Heterobimetallic Mn/Co hybrid complexes composed of proximate organometallic and classical coordination sites. In: Journal of Organometallic Chemistry. 2007, 692(14), pp. 2956-2964. ISSN 0022-328X. Available under: doi: 10.1016/j.jorganchem.2007.03.012
BibTex
@article{Zhang2007Heter-13801,
  year={2007},
  doi={10.1016/j.jorganchem.2007.03.012},
  title={Heterobimetallic Mn/Co hybrid complexes composed of proximate organometallic and classical coordination sites},
  number={14},
  volume={692},
  issn={0022-328X},
  journal={Journal of Organometallic Chemistry},
  pages={2956--2964},
  author={Zhang, Huaxing and Dechert, Sebastian and Maurer, Jörg and Linseis, Michael and Winter, Rainer F. and Meyer, Franc}
}
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