Stereogenic-at-Metal Ir(III) Complexes as Platforms for the Construction of Asymmetric Bimetallic Complexes
The stereochemical-at-metal complexes Δ- and Λ-[Ir(ppy)<sub>2</sub>(<sup><i>S,R</i></sup><b>L</b>)]BF<sub>4</sub>, where <sup><i>S,R</i></sup><b>L</b> is a bpy ligand substituted at the 6-position with a chiral diamine or derivative thereof, have been prepared and fully characterized by a combination of empirical and theoretical methods. The differing solubility of the Δ and Λ parent diastereomers in acetone allowed their ready separation. Further functionalization of an external amino group occurred with complete retention of absolute configuration and gave systems capable of binding to a second metal. The facility to coordinate other metals was explored by using in situ <sup>1</sup>H NMR experiments with ZnI<sub>2</sub>. Coordination shifts were seen in the <sup>1</sup>H NMR spectra, confirming the coordination of Zn(II) and showcasing the potential of the complexes as flexible platforms for the construction of asymmetric bimetallics.
Authors
- Paul D. Newman (ORCID: https://orcid.org/0000-0002-1808-1211)
- James A. Platts (ORCID: https://orcid.org/0000-0002-1008-6595)
- Simon J. A. Pope (ORCID: https://orcid.org/0000-0001-9110-9711)
- Benson M. Kariuki (ORCID: https://orcid.org/0000-0002-8658-3897)
Institutions
- Cardiff University (GB)
- University of Wales (GB)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2025-12-09
- DOI
- https://doi.org/10.1021/acs.inorgchem.5c04469
- Primary Topic
- Organometallic Complex Synthesis and Catalysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00