A Linear {Fe III 2 Ni II } Cluster, a Structurally Closely Related Quasi 1D {Fe III 2 Ni II } Chain

Year: 2025

Type: article

Abstract: The solvothermal reaction between FeCl 3 ·6H 2 O, NiCl 2 ·6H 2 O, 2‐hydroxynaphthaldehyde, and glycine (gly) in MeOH results in the formation of the trinuclear heterometallic cluster [Fe ΙΙΙ 2 Ni ΙΙ (L 1 ) 4 (MeOH) 4 ] ( 1 ) in good yield, while the same reaction upon replacing gly with methyl‐alanine (mAla), results in the formation of the closely related quasi 1D coordination polymer {[Fe ΙΙΙ 2 Ni ΙΙ (L 2 ) 4 (MeOH) 2 ] n } ( 2 ) (L 1 , L 2 : the dianionic form of the Schiff‐base ligand derived from the condensation of 2‐hydroxynaphthaldehyde and gly (L 1 for 1 ), or mAla (L 2 for 2 )). The structure of 1 describes a linear trimetallic {Fe III 2 Ni} unit, whereas complex 2 consists of repeating linear {Fe III 2 Ni} units with each one connected to two neighboring units via four coordination bonds, forming a quasi ‐1D chain. The structural similarity between complex 1 and the repeating unit of complex 2 is remarkable. However, their magnetic properties differ significantly, with complex 1 displaying dominant ferromagnetic interactions, and complex 2 showing antiferromagnetic interactions.

Source: Chemistry - A European Journal

DOI: 10.1002/chem.202500911

Authors: Emmanouil K. Charkiolakis, David Gracia, Marc Ubach I Cervera, Marco Evangelisti, Constantinos J. Milios

Institutions: University of Crete, Universidad de Zaragoza, Instituto de Nanociencia y Materiales de Aragón

Language: English

Topic: Magnetism in coordination complexes

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,640

Funders: Gobierno de Aragón, Horizon 2020 Framework Programme, European Regional Development Fund, Agencia Estatal de Investigación, HORIZON EUROPE Marie Sklodowska-Curie Actions

OpenAlex ID: W4410539108