Work

Pd(0)/Pd(II) Electromerism Triggered by Lewis Base Coordination to a Redox‐Active Silicon Z‐Type Ligand

Year: 2024

Type: article

Abstract: Electromerism (aka. valence tautomerism) corresponds to the switching of electronic distributions between redox-active ligands and central elements. While this phenomenon is well established for several transition metals, the Pd(0)/Pd(II) couple could not yet be involved due to the high energy of the Pd(0) state. In this study, we present Pd(0)/Pd(II) electromerism by using a redox-active bis(phosphanyl-amidophenolato)silane. Strong silicon-based Z-type interaction stabilizes the Pd(0) state with an oxidized dicationic open-shell singlet ligand while binding of a Lewis base at the Lewis acidic silicon results in the loss of Z-type interaction and the intramolecular rearrangement to the Pd(II)/reduced ligand electromer. It introduces a novel concept for spin state switching by combining ligand ambiphilicity and redox activity.

Source: Angewandte Chemie International Edition

DOI: 10.1002/anie.202417581

Authors: Nils Ansmann, Marion Kerscher, Lutz Greb

Institution: Heidelberg University

Language: English

Topic: Organometallic Complex Synthesis and Catalysis

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $5,510

Funder: Deutsche Forschungsgemeinschaft