Utilization of a Chelating Bis[(dialkylamino)cyclopropenimine] to Isolate a Series of Heavier Zero‐Valent Group 14 Tetracarbonyl Iron Complexes
We report on the utilization of the ethylene-bridged bis[(dialkylamino)cyclopropenimine] (bisCPI) ligand, L<sup>CPI</sup>, to give access to new main-group E(II) halide complexes (E = Ge, Sn, Pb; 1, 2, 3). Subsequent reduction with Collman's reagent (Na<sub>2</sub>Fe(CO)<sub>4</sub> • dioxane) enables the isolation of a series of zero-valent tetrylone-tetracarbonyl iron complexes, (L<sup>CPI</sup>)E(Fe(CO)<sub>4</sub> (E = Ge (4), Sn (5), Pb (6)). Compounds 4 - 6 were reacted further with iron pentacarbonyl to yield the bis-tetracarbonyl iron complexes (L<sup>CPI</sup>)E[(Fe(CO)<sub>4</sub>]<sub>2</sub> (E = Ge (7), Sn (8), Pb (9)). The electronic structure of these complexes was studied by <sup>57</sup>Fe Mössbauer spectroscopy and computationally by density functional theory calculations.
Authors
- Shicheng Dong (ORCID: https://orcid.org/0000-0001-9309-762X)
- Karsten Meyer (ORCID: https://orcid.org/0000-0002-7844-2998)
- Jun Zhu (ORCID: https://orcid.org/0000-0002-3231-7235)
- John A. Kelly (ORCID: https://orcid.org/0009-0006-4252-1535)
- Sebastian Stigler (ORCID: https://orcid.org/0000-0002-1014-0950)
- Arseni Kostenko (ORCID: https://orcid.org/0000-0002-9593-4468)
- Simone V. Hirmer
- Shigeyoshi Inoue (ORCID: https://orcid.org/0000-0001-6685-6352)
- Zihan Zhang (ORCID: https://orcid.org/0000-0003-0976-1845)
Institutions
- Chinese University of Hong Kong (HK)
- Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
- Xiamen University (CN)
- International Council on Mining and Metals (GB)
- Chinese University of Hong Kong, Shenzhen (CN)
- Technical University of Munich (DE)
Publication Details
- Journal
- Chemistry - A European Journal
- Published
- 2025-04-07
- DOI
- https://doi.org/10.1002/chem.202501324
- Citations
- 1
- Primary Topic
- Organometallic Complex Synthesis and Catalysis
- Type
- article
- Field-Weighted Citation Impact
- 0.94
Funders
- Friedrich-Alexander-Universität Erlangen-Nürnberg