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Synthesis, Characterization and Structure of Bis‐ and Tetrakis‐Aziridine‐Nickel( II ) and Copper( II ) Complexes
Author(s) -
Roedel J. Nicolas,
Bobka Roman,
Neumann Bernd,
Weber Birgit,
Mayer Peter,
Lorenz IngoPeter
Publication year - 2007
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200700141
Subject(s) - aziridine , nickel , copper , chemistry , anhydrous , octahedron , crystal structure , crystallography , square pyramidal molecular geometry , ligand (biochemistry) , inorganic chemistry , stereochemistry , polymer chemistry , organic chemistry , ring (chemistry) , biochemistry , receptor
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 MCl 2 (M = Ni II , Cu II ) with aziridine (= az = C 2 H 4 NH, C 2 H 3 MeNH, CH 2 CMe 2 NH) in CH 2 Cl 2 at room temperature in a 1:5 and 1:2 molar ratio, respectively, afforded the tetrakis‐aziridine complexes [M(az) 4 Cl 2 ] (M = Ni, Cu) or the dimeric bis‐aziridine complex [Cu(az) 2 Cl 2 ] 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.