Inorganic Chemistry · 2009 · 57 citations · 0 references
Natural SciencesChemistryMaterials ScienceCrystal StructureInorganic ChemistrySolid-state ChemistryCluster ChemistryCluster CompoundsCoordination ChemistryCrystal ChemistryMetal-ligand BondingTransition Metal ComplexesCesium ChemistryElectronic Spectra Of Transition Metal ComplexesLuminescence MechanismsOctahedral ComplexesOctahedral CoordinationSingle-crystal DiffractionSingle-crystal X-ray DiffractionStructural Characterization Of Clusters
The hexarhenium anionic cluster complex with terminal formate ligands [Re6S8(HCOO)6]4- was obtained by the room-temperature reaction between [Re6S8(OH)6]4- and formic acid in an aqueous solution. The cluster was crystallized as a potassium or cesium salt and characterized by X-ray single-crystal diffraction and elemental analyses, IR, 1H NMR, UV/vis, and luminescence spectroscopies. In particular, the emission quantum yield of the potassium salt of the Re6 cluster anion in the solid phase was determined for the first time. The electronic structures of [Re6S8(HCOO)6]4- and [Re6S8(OH)6]4- were also elucidated by DFT calculations.