Synthesis,Characterization, and Structure of Metal(II) (-)-Sparteine Complexes Containing Acetate Ligands |
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Abstract: | The complexes [Co(C15H26N2)(C2H3O2)2] (1), [Ni(C15H26N2)(C2H3O2)2] (2), [Cu(C15H26N2)(C2H3O2)2] (3) and [Zn(C15H26N2)(C2H3O2)2] (4) were prepared from reaction of (?)-sparteine with the corresponding metal(II) acetates in ethanol at stoichiometric ligand to metal ratios. The complexes were characterized by UV-Vis and IR spectroscopies, and magnetic susceptibility measurements. The solid-state structures of 1, 2 and 4 have been determined by X-ray crystallography. The Complexes 1 and 2 display a pseudo-octahedral structure around the metal center, where two acetate ligands coordinate to the metal center in a bidentate fashion, whereas the metal centers in 3 and 4 adopt a pseudo-tetrahedral structure and two acetate ligands in these complexes coordinate to the metal center in a monodentate fashion. The whole set of prepared complexes has been used for comparative structural and spectroscopic studies. |
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Keywords: | (?)-Sparteine Acetate Jahn-Teller Distortion X-ray Structure |
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