Magnetic properties and structure of polynuclear compounds based on macrocyclic azacyclam complexes of nickel(II) and bridging oxalate ions

Ya D. Lampeka; P. Lightfoot; I. M. Maloshtan; J. Mrozinski; A. Skorupa

doi:10.1023/A:1012580612838

Magnetic properties and structure of polynuclear compounds based on macrocyclic azacyclam complexes of nickel(II) and bridging oxalate ions

Ya D. Lampeka^*, P. Lightfoot, I. M. Maloshtan, J. Mrozinski, A. Skorupa

^*Corresponding author for this work

School of Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

By X-ray diffraction analysis, we have established the structure of a binuclear complex of nickel(II) with an azacyclam ligand and a bridging oxalate ion. Study of the magnetic properties of a series of complexes of this type with related macrocyclic ligands has allowed us to observe antiferromagnetic coupling between the metal ions and a magnitude of the exchange integral J that varies in the range from -11.8 cm^-1 to -25.6 cm^-1. We have shown that, despite the close structural parameters of the macrocyclic ligands, the complexes are characterized by different magnetochemical behavior.

Original language	English
Pages (from-to)	247-251
Number of pages	5
Journal	Theoretical and Experimental Chemistry
Volume	37
Issue number	4
DOIs	https://doi.org/10.1023/A:1012580612838
Publication status	Published - 1 Jan 2001

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AU - Lampeka, Ya D.

AU - Lightfoot, P.

AU - Maloshtan, I. M.

AU - Mrozinski, J.

AU - Skorupa, A.

PY - 2001/1/1

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AB - By X-ray diffraction analysis, we have established the structure of a binuclear complex of nickel(II) with an azacyclam ligand and a bridging oxalate ion. Study of the magnetic properties of a series of complexes of this type with related macrocyclic ligands has allowed us to observe antiferromagnetic coupling between the metal ions and a magnitude of the exchange integral J that varies in the range from -11.8 cm-1 to -25.6 cm-1. We have shown that, despite the close structural parameters of the macrocyclic ligands, the complexes are characterized by different magnetochemical behavior.

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JO - Theoretical and Experimental Chemistry

JF - Theoretical and Experimental Chemistry

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ER -

Magnetic properties and structure of polynuclear compounds based on macrocyclic azacyclam complexes of nickel(II) and bridging oxalate ions

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