Dynamic Copper(I) and Silver(I) Complexes of Tri‐<i>tert</i>‐butyl‐cyclotriphosphane
The reaction of cyclo-(P<sub>3</sub>tBu<sub>3</sub>) with Cu<sup>I</sup> and Ag<sup>I</sup> salts led to the di- and tetranuclear complexes [Cu<sub>n</sub>(μ-Br)<sub>n</sub>{μ-cyclo-(P<sub>3</sub>tBu<sub>3</sub>)-κP<sup>1</sup>,κP<sup>2</sup>}<sub>2</sub>] with n = 2 (1) and n = 4 (2) and [Ag<sub>n</sub>(OTf)<sub>n</sub>(CH<sub>3</sub>CN)<sub>2</sub> <sub>n</sub> <sub>-2</sub>{μ-cyclo-(P<sub>3</sub>tBu<sub>3</sub>)-κP<sup>1</sup>,κP<sup>2</sup>}<sub>2</sub>] with n = 2 (4) and n = 4 (5). Complexes 1, 2, 4 and 5 were isolated as crystalline powders or single crystals and characterized by X-ray diffraction. In solution, these complexes exhibit a dynamic equilibrium which involves continuous dissociation and reforming of phosphorus-metal bonds leading to isomeric intermediates. This behavior was demonstrated by low-temperature <sup>31</sup>P{<sup>1</sup>H} NMR spectroscopy and the conclusions were corroborated by DFT calculations.
Authors
- Divine Mbom Yufanyi (ORCID: https://orcid.org/0000-0001-8889-611X)
- Peter Wonneberger (ORCID: https://orcid.org/0000-0002-1306-974X)
- Evamarie Hey‐Hawkins (ORCID: https://orcid.org/0000-0003-4267-0603)
- Toni Grell (ORCID: https://orcid.org/0000-0001-9162-6487)
- Peter Lönnecke (ORCID: https://orcid.org/0000-0003-1335-0897)
Institutions
- University of Milan (IT)
- University of Bamenda (CM)
- Babeș-Bolyai University (RO)
- Czech Academy of Sciences, Institute of Inorganic Chemistry (CZ)
- Leipzig University (DE)
Publication Details
- Journal
- Chemistry - A European Journal
- Published
- 2025-03-26
- DOI
- https://doi.org/10.1002/chem.202500746
- Citations
- 1
- Primary Topic
- Metal complexes synthesis and properties
- Type
- article
- Field-Weighted Citation Impact
- 1.05