Stereogenic-at-metal Ir(III) complexes as platforms for the construction of asymmetric bimetallic complexes

Newman, Paul D. ORCID: https://orcid.org/0000-0002-1808-1211, Platts, James A. ORCID: https://orcid.org/0000-0002-1008-6595, Pope, Simon J. A. ORCID: https://orcid.org/0000-0001-9110-9711 and Kariuki, Benson M. ORCID: https://orcid.org/0000-0002-8658-3897 2025. Stereogenic-at-metal Ir(III) complexes as platforms for the construction of asymmetric bimetallic complexes. Inorganic Chemistry 10.1021/acs.inorgchem.5c04469

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Abstract

The stereochemical-at-metal complexes Δ- and Λ-[Ir(ppy)2(S,RL)]BF4, where S,RL 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 1H NMR experiments with ZnI2. Coordination shifts were seen in the 1H NMR spectra, confirming the coordination of Zn(II) and showcasing the potential of the complexes as flexible platforms for the construction of asymmetric bimetallics.

Item Type:	Article
Date Type:	Published Online
Status:	In Press
Schools:	Schools > Chemistry
Publisher:	American Chemical Society
ISSN:	0020-1669
Date of First Compliant Deposit:	15 December 2025
Date of Acceptance:	20 November 2025
Last Modified:	15 Dec 2025 11:00
URI:	https://orca.cardiff.ac.uk/id/eprint/183183

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