Straightforward access to chalcogenoureas derived from N-heterocyclic carbenes and their coordination chemistry

Marina Saab, David J. Nelson, Nikolaos V. Tzouras, Tahani A. C. A. Bayrakdar, Steven P. Nolan, Fady Nahra, Kristof van Hecke

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Abstract

Chalcogen-based urea compounds supported by a wide range of N-heterocyclic carbenes are synthesised and fully characterised. Coordination of selenoureas is further explored with Group 11 transition metals to form new copper, gold and silver complexes. Single crystal X-ray analyses unambiguously establish the solid-state coordination of these complexes and show that the geometry of a complex is highly influenced by a combination of electronic properties – mainly π-accepting ability – and steric hindrance of the ligands, as well as the nature of the metal, affording a variety of coordination behaviours. In this report, we investigate these phenomena using several experimental methods.
Original languageEnglish
Pages (from-to)12068-12081
Number of pages14
JournalDalton Transactions
Volume49
Issue number34
Early online date11 Aug 2020
DOIs
Publication statusPublished - 14 Sep 2020

Keywords

  • urea compounds
  • metal complexes
  • chalcogenoureas

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  • What can NMR spectroscopy of selenoureas and phosphinidenes teach us about the π-accepting abilities of N-heterocyclic carbenes?

    Vummaleti, S. V. C., Nelson, D. J., Poater, A., Gomez-Suarez, A., Cordes, D. B., Slawin, A. M. Z., Nolan, S. P. & Cavallo, L., 1 Mar 2015, In : Chemical Science. 6, 3, p. 1895-1904 10 p.

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  • Exploring the coordination of cyclic selenoureas to gold(I)

    Nelson, D. J., Nahra, F., Patrick, S. R., Cordes, D. B., Slawin, A. M. Z. & Nolan, S. P., 2014, In : Organometallics. 33, 13, p. 3640-3645 6 p.

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