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Cobalt(II) Complexes of Nitrile-Functionalized Ionic Liquids

Authors

  • Peter Nockemann Dr.,

    1. Department of Chemistry, K.U. Leuven, Celestijnenlaan 200F, bus 2404, 3001 Heverlee (Belgium), Fax: (+32) 1632-7992
    2. Current address: Queen's University Belfast, The QUILL Research Centre, School of Chemistry and Chemical Engineering, David Keir Building, Stranmillis Road, Belfast BT9 5AG (UK)
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  • Michael Pellens,

    1. Department of Chemistry, K.U. Leuven, Celestijnenlaan 200F, bus 2404, 3001 Heverlee (Belgium), Fax: (+32) 1632-7992
    2. Current address: Queen's University Belfast, The QUILL Research Centre, School of Chemistry and Chemical Engineering, David Keir Building, Stranmillis Road, Belfast BT9 5AG (UK)
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  • Kristof Van Hecke Dr.,

    1. Department of Chemistry, K.U. Leuven, Celestijnenlaan 200F, bus 2404, 3001 Heverlee (Belgium), Fax: (+32) 1632-7992
    2. Current address: Queen's University Belfast, The QUILL Research Centre, School of Chemistry and Chemical Engineering, David Keir Building, Stranmillis Road, Belfast BT9 5AG (UK)
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  • Luc Van Meervelt Prof. Dr.,

    1. Department of Chemistry, K.U. Leuven, Celestijnenlaan 200F, bus 2404, 3001 Heverlee (Belgium), Fax: (+32) 1632-7992
    2. Current address: Queen's University Belfast, The QUILL Research Centre, School of Chemistry and Chemical Engineering, David Keir Building, Stranmillis Road, Belfast BT9 5AG (UK)
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  • Johan Wouters Prof. Dr.,

    1. University of Namur, FUNDP, 5000 Namur (Belgium)
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  • Ben Thijs Dr.,

    1. Department of Chemistry, K.U. Leuven, Celestijnenlaan 200F, bus 2404, 3001 Heverlee (Belgium), Fax: (+32) 1632-7992
    2. Current address: Queen's University Belfast, The QUILL Research Centre, School of Chemistry and Chemical Engineering, David Keir Building, Stranmillis Road, Belfast BT9 5AG (UK)
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  • Evert Vanecht,

    1. Department of Chemistry, K.U. Leuven, Celestijnenlaan 200F, bus 2404, 3001 Heverlee (Belgium), Fax: (+32) 1632-7992
    2. Current address: Queen's University Belfast, The QUILL Research Centre, School of Chemistry and Chemical Engineering, David Keir Building, Stranmillis Road, Belfast BT9 5AG (UK)
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  • Tatjana N. Parac-Vogt Prof. Dr.,

    1. Department of Chemistry, K.U. Leuven, Celestijnenlaan 200F, bus 2404, 3001 Heverlee (Belgium), Fax: (+32) 1632-7992
    2. Current address: Queen's University Belfast, The QUILL Research Centre, School of Chemistry and Chemical Engineering, David Keir Building, Stranmillis Road, Belfast BT9 5AG (UK)
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  • Hasan Mehdi,

    1. Department of Chemistry, K.U. Leuven, Celestijnenlaan 200F, bus 2404, 3001 Heverlee (Belgium), Fax: (+32) 1632-7992
    2. Current address: Queen's University Belfast, The QUILL Research Centre, School of Chemistry and Chemical Engineering, David Keir Building, Stranmillis Road, Belfast BT9 5AG (UK)
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  • Stijn Schaltin,

    1. Department of Metallurgy and Materials Engineering, K.U. Leuven, Kasteelpark Arenberg 44, bus 02450, 3001 Heverlee (Belgium)
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  • Jan Fransaer Prof. Dr.,

    1. Department of Metallurgy and Materials Engineering, K.U. Leuven, Kasteelpark Arenberg 44, bus 02450, 3001 Heverlee (Belgium)
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  • Stefan Zahn,

    1. Wilhelm-Ostwald Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstr. 2, 04103 Leipzig (Germany)
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  • Barbara Kirchner Prof. Dr.,

    1. Wilhelm-Ostwald Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstr. 2, 04103 Leipzig (Germany)
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  • Koen Binnemans Prof. Dr.

    1. Department of Chemistry, K.U. Leuven, Celestijnenlaan 200F, bus 2404, 3001 Heverlee (Belgium), Fax: (+32) 1632-7992
    2. Current address: Queen's University Belfast, The QUILL Research Centre, School of Chemistry and Chemical Engineering, David Keir Building, Stranmillis Road, Belfast BT9 5AG (UK)
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Abstract

A series of nitrile-functionalized ionic liquids were found to exhibit temperature-dependent miscibility (thermomorphism) with the lower alcohols. Their coordinating abilities toward cobalt(II) ions were investigated through the dissolution process of cobalt(II) bis(trifluoromethylsulfonyl)imide and were found to depend on the donor abilities of the nitrile group. The crystal structures of the cobalt(II) solvates [Co(C1C1CNPyr)2(Tf2N)4] and [Co(C1C2CNPyr)6][Tf2N]8, which were isolated from ionic-liquid solutions, gave an insight into the coordination chemistry of functionalized ionic liquids. Smooth layers of cobalt metal could be obtained by electrodeposition of the cobalt-containing ionic liquids.

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