Metallocene Coordination to Neutral Alkaline Earth Metal Complexes
The geometrically constrained, Lewis acidic magnesium diamide complex, [Mg(<sup>Et</sup>NON<sup>TCHP</sup>)] (<sup>Et</sup>NON<sup>TCHP</sup> = 4,5-bis(2,4,6-tricyclohexylanilido)-2,7-diethyl-9,9-dimethyl-xanthene), forms complexes with a series of metallocenes, [Mg(<sup>Et</sup>NON<sup>TCHP</sup>)(η<sup>2</sup>-Cp<sub>2</sub>M)] (M = Mn, Fe, Co, or Ni), in which one cyclopentadienyl ring of the metallocene is η<sup>2</sup>-coordinated to the magnesium center. Treating the heavier group 2 metal amide complexes, [M(<sup>Et</sup>NON<sup>TCHP</sup>){N(H)(SiMe<sub>3</sub>)<sub>2</sub>}] (M = Ca, Sr or Ba) with ferrocene yields complexes [M(<sup>Et</sup>NON<sup>TCHP</sup>)(η<sup>5</sup>-Cp<sub>2</sub>Fe)] in which one cyclopentadienyl ring of ferrocene is η<sup>5</sup>-coordinated to the group 2 metal center. Computational studies on the metallocene complexes reveal that the metallocene-group 2 metal interactions are largely electrostatic in nature.
Authors
- Cameron Jones (ORCID: https://orcid.org/0000-0002-7269-1045)
- Jeremy Mullins
- Joseph M. Parr (ORCID: https://orcid.org/0000-0002-9761-6631)
- Matthew J. Evans (ORCID: https://orcid.org/0000-0002-5383-3220)
Institutions
- Zero to Three (US)
- Monash University (AU)
Publication Details
- Journal
- Chemistry - An Asian Journal
- Published
- 2025-09-22
- DOI
- https://doi.org/10.1002/asia.70331
- Citations
- 2
- Primary Topic
- Organometallic Complex Synthesis and Catalysis
- Type
- article
- Field-Weighted Citation Impact
- 1.87
Funders
- Australian Synchrotron