Light-Driven Proton-Coupled Two-Electron Ligand Reduction Causes the Rearrangement of the Coordination Sphere in Cu(I) 4H‑Imidazolato Complexes

Luise Thomisch, Louis Blechschmidt, Niklas Klosterhalfen, Phil Köhler, Helmar Görls, Jens H. Tran, Julian Plitzko, Benjamin Dietzek-Ivanšić, Carolin Müller, Martin Schulz · 2026

Read Light-Driven Proton-Coupled Two-Electron Ligand Reduction Causes the Rearrangement of the Coordination Sphere in Cu(I) 4H‑Imidazolato Complexes by Luise Thomisch, Louis Blechschmidt, Niklas Klosterhalfen, Phil Köhler, Helmar Görls, Jens H. Tran, Julian Plitzko, Benjamin Dietzek-Ivanšić, Carolin Müller, Martin Schulz (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13244457.txt.

Description

Light can store chemical energy when a molecule absorbs photons and holds the gained electrons. A team led by Luise Thomisch studied copper complexes built on a special ligand that can accept two electrons at once. Under light, with various solvents, wavelengths, and electron and proton donors present, these complexes took up two electrons together with protons, and the team isolated the product that formed.

Crystal and spectroscopy analysis showed what changed. Both outer nitrogen atoms at the ligand's grip point gained protons, and the copper fragment let go of that site and reattached elsewhere on the ligand. The molecule ended in a flat three-way arrangement that exposes a fresh binding site on the copper. Computer calculations backed the picture of this proton-coupled transfer and the large rearrangement it causes.

Catalog record

CREATORLuise Thomisch, Louis Blechschmidt, Niklas Klosterhalfen, Phil Köhler, Helmar Görls, Jens H. Tran, Julian Plitzko, Benjamin Dietzek-Ivanšić, Carolin Müller, Martin Schulz
YEAR2026
COLLECTIONPAPERS
FORMATTXT
FILE SIZE57 KB
VERSION1.0
LICENSECC BY 4.0
RIGHTSCC BY
SOURCEEurope PMC

Source: https://europepmc.org/articles/PMC13244457

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