Work

Relating structure, composition, and spin crossover properties in Hofmann complexes

Year: 2025

Type: article

Abstract: ·G (L = organic ligand, G = guest) are archetypical SCO-active coordination polymers, associated with strong cooperativity and large guest sensitivity. This manuscript presents a metastudy of over 300 Hofmann complexes, analysing crystal structures with symmetry-mode analysis with the aim of clarifying the link between structure, composition, and SCO behaviour. The distortion landscape is dominated by shifts of the inorganic layers and tilts perpendicular to the stacking direction. The transition temperatures are typically maximised for 3D Hofmann complexes with M = Pd or Pt and few (or no) symmetry-lowering structural distortions. Our results are relevant for the rational design of spin-crossover active materials with a wealth of applications.

Source: Dalton Transactions

DOI: 10.1039/d5dt01192b

Authors: Matthew G. Robb, Hanna L. B. Boström

Institution: Stockholm University

Language: English

Topic: Magnetism in coordination complexes

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Funders: Knut och Alice Wallenbergs Stiftelse, Vetenskapsrådet

Award: Tilt engineering of Prussian blue analogues towards new multiferroics