Peer-Reviewed Publication
Inorg Chem2026;65(36):21027-21038.September 14, 2026Journal Article

Structure-Property Relations in Aryl-Functionalized [Fe(H2Bpz2)2(bipy-R)] Spin Crossover Complexes.

Mengmeng Wang1, Koen Robeyns1, Aurelian Rotaru2, Tim Hochdörffer3, Mariusz Wolff4, Dominik Maskowicz5, Juliusz A Wolny3, Volker Schuenemann3, Miroslaw Sawczak5, Rafał Jendrzejewski5, Yann Garcia1
1Institute of Condensed Matter and Nanosciences, Molecular Chemistry, Materials and Catalysis (IMCN/MOST), Université Catholique de Louvain, Place L. Pasteur 1, Louvain-la-Neuve1348, Belgium.
2Department of Electrical Engineering and Computer Science and MANSiD Research Center, "Stefan Cel Mare" University, University Street, 13, Suceava720229, Romania.
3Department of Physics, RPTU University Kaiserslautern-Landau, Erwin-Schrödinger-Str. 46, Kaiserslautern67663, Germany.
4Institute of Functional Materials and Catalysis, Faculty of Chemistry, University of Vienna, Währinger Str. 38-42, Vienna1090, Austria.
5Photophysics Department, The Szewalski Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Gdansk80-231, Poland.

Abstract

Aryl substituents, characterized by unique π-conjugation, steric effects, and optical properties, play a crucial role in modulating the structure, electronic and photophysical properties of coordination complexes. Herein, phenyl, 1-naphthyl and 2-naphthyl groups were introduced at the C5/C5' positions of the bipyridine ligand into the prototypical spin crossover complex [Fe(H2Bpz2)2(bipy)] (H2Bpz2…

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