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Pt as Mediator of Strong Antiferromagnetic Coupling between Two CuII Ions in a Heteronuclear CuIIPtIICuII Complex of the Model Nucleobase 1-Methylcytosinate
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1999
Year
Molecular BiologyTrinuclear Cuiiptcuii ComplexesChemistryInorganic CompoundHeteronuclear Cuiiptiicuii ComplexInorganic ChemistryBiochemistryOligonucleotideDna Replication1-Methylcytosinate NucleobasesInorganic SynthesisNatural SciencesMetalloproteinCoordination ComplexNucleic Acid BiochemistryCuii IonsModel NucleobaseCuii CentersMolecular Complex
Trinuclear CuIIPtCuII complexes (see scheme) are formed with four bridging 1-methylcytosinate nucleobases. These compounds are diamagnetic as a result of the strong exchange interaction (J≅1000 cm−1 (2 b)), despite a separation of approximately 5 Å between the CuII centers.