The Emissive and Electrochemical Properties of Hypervalent Pyridine-Dipyrrolide Bismuth Complexes.

ABSTRACT: We present a series of six hypervalent bismuth complexes Bi(^R1PDP^R2)X bearing ligands characterized by the pyridine-2,6-bis(pyrrolide) (PDP) structural motif. While bismuth holds considerable potential for facilitating efficient intersystem crossing (ISC), reports on phosphorescent molecular bismuth complexes are still scarce and mostly based on systems that exhibit inter- or intraligand charge transfer character of their optical excitations. Herein, the UV/vis absorptive, luminescent, and electrochemical properties of complexes Bi(^R1PDP^R2)X are explored, where the substituents R₁ and R₂, as well as the halide ligand X are varied. These compounds are characterized by an intense HOMO→LUMO transition of mixed ligand-to-metal c

SUBMITTER: Deuter KL 

PROVIDER: S-EPMC11771734 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature