名称:
                                Cr(III), Fe(III), and Co(II) complexes of tetraazamacrocycles derived from 2,3-butanedione or benzil and 1,8-diamino-3,6-diazaoctane
                             
                            
                                摘要:
                                Template condensation of alpha-diketones such as 2,3-butanedione or benzil with 1,8-diamino-3,6-diazaoctane in the presence of Cr(III), Fe(III) and Co(II) results in the formation of macrocyclic complexes of the type [MLX2]X and [CoLX]X (where M = Cr(III), Fe(III), L = N4 macrocycle and X = NO3- or Cl-). The complexes have been characterized by elemental analyses, conductance and magnetic measurements, molecular weight determinations, infrared and diffuse reflectance spectral studies.