Work

Synthesis, Characterization, Electronic Structure, and Excitation Dynamics of Dinuclear Copper(I) Complexes with a Naphthyridine Diimine Ligand

Year: 2025

Type: article

Abstract: Novel photosensitizer paradigms featuring Earth-abundant metals are highly sought after due to their low cost, low toxicity, and abundance. In this study, we pursue a bimetallic paradigm for an Earth-abundant-metal photosensitizer design. We describe the synthesis, structure, and photophysical properties of a series of dicopper(I) complexes supported by a naphthyridine diimine ligand. Time-resolved spectroscopic and computational studies reveal excited states with (MM)LCT character formed at absorptions in the visible range. The excited-state lifetimes of these complexes are slightly perturbed by the anionic counterions bound to copper.

Source: Inorganic Chemistry

DOI: 10.1021/acs.inorgchem.5c05268

Authors: Oshan J. Jinarathne, Rishi Ranjan, Aidan E. Khoury, Dariusz M. Niedzwiedzki, Jagan Rajamoni, Malkanthi K. Karunananda

Institutions: Saint Louis University, Washington University in St. Louis, University of Missouri–St. Louis

Language: English

Topic: Photochemistry and Electron Transfer Studies

Subfield: Physical and Theoretical Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: green

Funders: Saint Louis University, National Institutes of Health, National Institute of General Medical Sciences

Awards: G4551023372, G8046112807, Transition metal photosensitizers with metal-metal bonds