Synthesis,Characterization and Structure of Bis‐ and Tetrakis‐Aziridine‐Nickel(II) and Copper(II) Complexes |
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| Authors: | J Nicolas Roedel Roman Bobka Bernd Neumann Birgit Weber Peter Mayer Ingo‐Peter Lorenz Prof Dr |
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| Institution: | 1. München, Ludwig‐Maximilians University Munich, Department of Chemistry and Biochemistry;2. München, Ludwig‐Maximilians University Munich, Department of Chemistry and BiochemistryDepartment Chemie and Biochemistry, Ludwig‐Maximilians University, Butenandtstr. 5–13, D‐81377 Munich/Germany, Fax: +49‐89‐2180‐77867 |
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| Abstract: | The synthesis and characterization of mononuclear tetrakis‐aziridine nickel(II ) and copper(II ) complexes as well as of a dinuclear bis‐aziridine copper(II ) complex are described. The reactions of anhydrous MCl2 (M = NiII, CuII) with aziridine (= az = C2H4NH, C2H3MeNH, CH2CMe2NH) in CH2Cl2 at room temperature in a 1:5 and 1:2 molar ratio, respectively, afforded the tetrakis‐aziridine complexes M(az)4Cl2] (M = Ni, Cu) or the dimeric bis‐aziridine complex Cu(az)2Cl2]2. After purification, all of the complexes were fully characterized. The single crystal structure analysis revealed two different coordination modes. Whereas both nickel(II ) complexes can be classified as showing an elongated octahedral structure, copper(II ) complexes show either an elongated octahedral or a square pyramidal arrangement forming dimers with chlorido bridges in axial positions. Furthermore, the results of magnetic measurements of the nickel(II ) and copper(II ) compounds are presented. |
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| Keywords: | Nickel Copper Aziridine Magnetism Crystal structures |
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