Cobalt(II) complexes of nitrile-functionalized ionic liquids

Peter Nockemann, Michael Pellens, Kristof Van Hecke, Luc Van Meervelt, Johan Wouters, Ben Thijs, Evert Vanecht, Tatjana N. Parac-Vogt, Hasan Mehdi, Stijn Schaltin, Jan Fransaer, Stefan Zahn, Barbara Kirchner, Koen Binnemans

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48 Citations (Scopus)


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(C1C 2CNPyr)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.

Original languageEnglish
Pages (from-to)1849-1858
Number of pages10
JournalChemistry - A European Journal
Issue number6
Publication statusPublished - Feb 8 2010



  • Cobalt
  • Coordination compounds
  • Crystal structure
  • Electrodeposition
  • Ionic liquids

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Organic Chemistry

Cite this

Nockemann, P., Pellens, M., Van Hecke, K., Van Meervelt, L., Wouters, J., Thijs, B., Vanecht, E., Parac-Vogt, T. N., Mehdi, H., Schaltin, S., Fransaer, J., Zahn, S., Kirchner, B., & Binnemans, K. (2010). Cobalt(II) complexes of nitrile-functionalized ionic liquids. Chemistry - A European Journal, 16(6), 1849-1858.