Mixed valence copper-sulfur clusters of highest nuclearity: a Cu8 wheel and a Cu16 nanoball.
Ram Chandra MajiPartha Pratim DasAnirban BhandariSaikat MishraMilan MajiKamran B GhiassiMarilyn M OlmsteadApurba K PatraPublished in: Chemical communications (Cambridge, England) (2018)
Fully spin delocalized mixed valence copper-sulfur clusters, 1 and 2, supported by μ4-sulfido and NSthiol donor ligands are synthesized and characterized. Wheel shaped 1 consists of Cu2S2 units. The unprecedented nanoball 2 can be described as S@Cu4(tetrahedron)@O6(octahedron)@Cu12S12(cage) consisting of both Cu2S2 and (μ4-S)Cu4 units. The Cu2S2 and (μ4-S)Cu4 units resemble biological CuA and CuZ sites respectively.