Low-oxidation state dirhodium complex produced by four-electron reduction of dirhodium(ii) complex supported by a flexible macrocyclic ligand.

ABSTRACT: Dinuclear rhodium complexes represent a distinct class of transition-metal compounds, exhibiting unique reactivity enabled by close metal-metal proximity. However, despite extensive investigations, access to highly reduced Rh₂ complexes has remained a challenge due to their intrinsic instability. Herein, we report the synthesis and characterization of a series of dirhodium complexes in the formal oxidation states of Rh^II ₂, Rh^I ₂, and Rh⁰ ₂, supported by a flexible macrocyclic bis(pyridinediimine) (PDI₂) ligand. Single-crystal X-ray diffraction analysis revealed the crystal structure of the Rh₂ complexes. The PDI₂ ligand system flexibly adapts both structure and electronics across

SUBMITTER: Yan L 

PROVIDER: S-EPMC12687367 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature