Structural studies of new chiral nickel (II) complexes of cyclams: The influence of a systematically varied number of amide groups

摘要

The synthesis and structures of nickel (II) complexes of chiral cyclams originating from L-proline are presented. Upon addition of nickel acteate, oxocyclams having amide groups underwent deprotonation forming distorted square-planar complexes. In the case of the all-amine analogue a six-coordinate octahedral complex is formed. (c) 2005 Elsevier Ltd. All rights reserved.