Geometry-dependent valence tautomerism, magnetism, and electrical conductivity in 1D iron-tetraoxolene chains.

ABSTRACT: Redox-active tetraoxolene ligands such as 1,4-dihydroxybenzoquinone provide access to a diversity of metal-organic architectures, many of which display interesting magnetic behavior and high electrical conductivity. Here, we take a closer look at how structure dictates physical properties in a series of 1D iron-tetraoxolene chains. Using a diphenyl-derivatized tetraoxolene ligand (H₂Ph₂dhbq), we show that the steric profile of the coordinating solvent controls whether linear or helical chains are exclusively formed. Despite similar ligand environments, only the helical chain displays temperature-dependent valence tautomerism, switching from (Fe^II)(Ph₂dhbq^2-) to (Fe^III)(Ph₂dhbq³˙^-) at temperat

SUBMITTER: Kamin AA 

PROVIDER: S-EPMC10094740 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature