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From the {Cu(μ2-S)N}4 butterfly architecture to the {Cu(μ3-S)N}12 double wheel |
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| Authors: | M.S. Ameerunisha Begum, Oliver Seewald, Ulrich Fl rke,Gerald Henkel |
| Affiliation: | aDepartment of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India bDepartment of Chemistry, University of Paderborn, Warburger Strasse 100, 33098 Paderborn, Germany |
| Abstract: | Copper(I) complexes with {Cu(μ2-S)N}4 and {Cu(μ3-S)N}12 core portions of butterfly-shaped or double wheel architectures have been isolated in the reaction of Cu(I) with the Schiff base ligand C6H4(CHNC6H4S)2, “iso-abt”, under different conditions. containing the tetranuclear electroneutral complex is formed by the reaction of CuI in acetonitrilic solution and recrystallization from DMF, whereas containing dodecanuclear wheels is accessible starting from CuBF4. Complexes 2 and 4 represent the first examples of cyclic complexes with the same overall stoichiometry but different ring sizes. The ligand induces two different coordination environments around copper(I) by switching between μ2- and μ3-sulfur bridging modes. |
| Keywords: | Copper complexes N/S-Ligands Coordination chemistry Polynuclear complexes |
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