6533b7d6fe1ef96bd1265a0c
RESEARCH PRODUCT
[(Pyridylcarbonyl)pyridyl]triazolopyridines, Useful Ligands for the Construction of Polynuclear Coordination Compounds – Synthesis, Crystal Structure and Magnetic Properties of a Novel Tetranuclear Copper(II) Cubane
Mimoun ChadlaouiRafael BallesterosJosé Antonio RealCarmen Ramírez De ArellanoBelén Abarcasubject
Coupling constantchemistry.chemical_classificationDenticityLigandStereochemistrychemistry.chemical_elementCrystal structureCopperIonCoordination complexInorganic ChemistryCrystallographychemistry.chemical_compoundchemistryCubanedescription
A new tetranuclear cubane Cu4O4 complex has been synthesised from assembly of CuII ions and the polydentate ligand (pyridin-2-yl){6-([1,2,3]triazolo[1,5-a]pyridin-3-yl)pyridin-2-yl}methanone. Crystallographic analysis indicates that the Cu4O4 unit has an S4 symmetry. The magnetic properties have been analysed using the H = –2Σi,jJijSiSj spin Hamiltonian. Two distinct coupling constants, 2J1,3 = –37.4 cm–1 and 2J1,2 = –2.6 cm–1, obtained from the fitting of the experimental data have been rationalised on the basis of a density functional study of magnetostructural correlations in cubane complexes containing the Cu4O4 core. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-09-25 | European Journal of Inorganic Chemistry |