Abstract
A novel mixed-valent tetranuclear manganese complex, [MnII2MnIII2(dophe)2(DMSO)7(H2O)] (H5dophe=di-[5-(2-oxyphenyl)-pyrazole]-3-hydroxamic ether) was prepared and characterized through X-ray crystallography, elemental analysis and IR spectra. The molecule contains a linear [MnII2MnIII2N8O2] core with two dinuclear NN bridged subunits connected by two μ2-O atoms. Two dophe5− ligands are located opposite to each other. Magnetic studies indicate the dominance of intramolecular antiferromagnetic interactions.
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