Exploring the Magnetic Interactions in Two Novel Cyanide-Bridged Homo- and Heterometallic Hexadecanuclear Complexes.

Autor: Yadav J; Department of Chemistry, Elements Building, Indian Institute of Science Education and Research Bhopal, Bhauri, Madhya Pradesh, Bhopal By-pass road, India, 462066., Gupta A; Department of Chemistry, Elements Building, Indian Institute of Science Education and Research Bhopal, Bhauri, Madhya Pradesh, Bhopal By-pass road, India, 462066., Mondal A; Department of Chemistry, Elements Building, Indian Institute of Science Education and Research Bhopal, Bhauri, Madhya Pradesh, Bhopal By-pass road, India, 462066., Daumann F; IAAC, Friedrich-Schiller University Jena, Humboldtstraße 8, 07743, Jena, Germany., Hörner G; IAAC, Friedrich-Schiller University Jena, Humboldtstraße 8, 07743, Jena, Germany., Weber B; IAAC, Friedrich-Schiller University Jena, Humboldtstraße 8, 07743, Jena, Germany., Konar S; Department of Chemistry, Elements Building, Indian Institute of Science Education and Research Bhopal, Bhauri, Madhya Pradesh, Bhopal By-pass road, India, 462066.
Jazyk: angličtina
Zdroj: Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2024 Jun 17; Vol. 30 (34), pp. e202400321. Date of Electronic Publication: 2024 May 22.
DOI: 10.1002/chem.202400321
Abstrakt: Two novel isostructural cyanide-bridged hexadecanuclear complexes with the general formula {[Fe(CN) 6 ] 6 [M{en(Bn)py}] 10 } 2+ [M=Fe (1 2+ ), Ni (2 2+ )] have been synthesized. The structural analyses disclose the presence of multivalent Fe centres with different spin states in complex 1 2+ whereas all the Fe centres share a conserved oxidation state in complex 2 2+ . The DC magnetic study revealed antiferromagnetic interactions between the adjacent metal centres and ferrimagnetic behaviour in 1 2+ . On the other hand, ferromagnetic interactions were observed in complex 2 2+ due to nearly orthogonal orientation of the interacting orbitals and poor spatial overlap as observed in BS-DFT calculations.
(© 2024 Wiley-VCH GmbH.)
Databáze: MEDLINE
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