Synthesis, characterisation, and magnetic properties of a permethylindenyl manganocene
The heptamethylindenyl ligand (C<sub>9</sub>Me<sub>7</sub><sup>-</sup>; Ind*) has been used to synthesise the manganese complex, (η<sup>5</sup>-Ind*)<sub>2</sub>Mn, by lithiation of the proligand and subsequent salt metathesis with MnCl<sub>2</sub>. The solid state molecular structure indicates a low-spin (<i>S</i> = ½) ground state for the Mn<sup>2+</sup> metal centre at 100 K. Solution EPR spectroscopy, solid state magnetic susceptibility measurements, and computational studies suggest the complex undergoes a thermally accessible spin-crossover to a high-spin (<i>S</i> = 5/2) state.
Authors
- Jean‐Charles Buffet (ORCID: https://orcid.org/0000-0003-2062-9546)
- Agamemnon E. Crumpton (ORCID: https://orcid.org/0000-0002-0786-5205)
- William K. Myers (ORCID: https://orcid.org/0000-0001-5935-9112)
- Alexander Evans (ORCID: https://orcid.org/0000-0003-1681-1628)
- Samantha C. Binding (ORCID: https://orcid.org/0000-0003-4402-0313)
- Dermot O’Hare (ORCID: https://orcid.org/0000-0001-8054-8751)
- Thomas Arnold (ORCID: https://orcid.org/0000-0001-5138-9122)
- Paul Ransom
- Zoë R. Turner (ORCID: https://orcid.org/0000-0003-2044-9203)
Institutions
- University of Oxford (GB)
Publication Details
- Journal
- Dalton Transactions
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5dt01345c
- Primary Topic
- Magnetism in coordination complexes
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- University of Oxford
- London Metropolitan University
- SCG Chemicals
- Engineering and Physical Sciences Research Council