Abstract
The reactions of [Mn4(hmp)6(NO3) 2(H2O)2](ClO4)2 with (Bu4N)2[CoX4] (X = Cl, Br) in CH3CN have been studied and the new heterometallic tetranuclear clusters [Co III 2MnII 2(hmp)6Cl 2(CH3CN)2]MnIICl4· 3CH3CN and [CoIII 2MnII 2(hmp)6Br2(CH3CN) 2]MnIIBr4·4CH3CN have been synthesized and characterized by TGA, electrospray ionization mass spectrometry, single-crystal X-ray diffraction, and magnetic measurements. The magnetic properties of the heterometallic clusters were analyzed by DFT and ab initio calculations. The first heterometallic tetranuclear clusters containing a [CoIII 2MnII 2] core have been synthesized and fully characterized. The magnetic susceptibility measurements in the temperature range 4-300 K reveal a rather strong intracluster antiferromagnetic coupling between the oxo-bridged MnII ions, in agreement with the results of DFT and ab initio calculations.
Original language | English |
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Pages (from-to) | 5603-5611 |
Number of pages | 9 |
Journal | European Journal of Inorganic Chemistry |
Issue number | 32 |
DOIs | |
Publication status | Published - 1 Nov 2013 |
Keywords
- Cluster compounds
- Cobalt
- Magnetic properties
- Manganese
- Quantum chemistry
ASJC Scopus subject areas
- Inorganic Chemistry