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Full Paper
Syntheses and Structural Study of Novel Tetranuclear Bis(phenoxido)-Bridged CuII Metal–Organic Macrocycles
Article first published online: 27 JAN 2012
DOI: 10.1002/ejic.201101103
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Riisiö, A., Hänninen, M. M. and Sillanpää, R. (2012), Syntheses and Structural Study of Novel Tetranuclear Bis(phenoxido)-Bridged CuII Metal–Organic Macrocycles. European Journal of Inorganic Chemistry, 2012: 1048–1053. doi: 10.1002/ejic.201101103
Publication History
- Issue published online: 21 FEB 2012
- Article first published online: 27 JAN 2012
- Manuscript Received: 12 OCT 2011
Funded by
- Inorganic Materials Chemistry Graduate Program (EMTKO)
Keywords:
- Copper;
- Supramolecular chemistry;
- Magnetic properties;
- Density functional calculations
Graphical Abstract
The geometrical parameters and magnetic properties of structurally interesting metal–organic macrocycles {[Cu4(L)2]·xS and [Cu4(L)2(H2O)2]·xS} can be varied drastically by changing the crystallization solvent. Six novel structures are reported along with their calculated magnetic coupling constants.
Abstract
Six new tetranuclear copper(II) complexes were prepared exploiting novel ditopic alkylenediamine-N,N,N′,N′-tetraphenolate ligands. The geometrical parameters of the compounds can be varied by introducing different solvents of crystallization into the lattice. The structures of all six complexes were determined from single-crystal X-ray diffraction analyses and the magnetic properties of the complexes were estimated by computational DFT calculations. The relationship between the magnetic exchange coupling constant (J) and the Cu–O–Cu angle (θ) in these bis(phenoxido)-bridged complexes was investigated and a magnetostructural correlation was established between J and the θ angle. All studied complexes showed strong antiferromagnetic behaviour.