Metal Ion Directed Synthesis of 12 and 14-Membered Tetraaza Macrocyclic Complexes and their Physico-Chemical Studies
作者:Tahir Ali Khan、Syed Sauban Ghani、Mohammad Shakir、Shabana Tabassum
DOI:10.1081/sim-200067064
日期:2005.7.1
The template condensation reaction of o-phenylenediamine with 2,3-butanedione or 2,4-pentanedione resulted in the formation of new series of 12 and 14-membered tetraaza macrocyclic complexes: [ML1 Cl-2], [ML2 Cl-2] [M=Co(II), Ni(II) and Zn(II)]; [CuL1] Cl-2 and [CuL2] Cl-2. The formation of the macrocyclic framework and the overall geometry of the complexes have been characterized by elemental analyses, FT-IR, (HNMR)-H-1, UV-Visible, magnetic susceptibility and conductivity measurements. The copper( II) complexes exhibit square planar geometry, whereas an octahedral geometry is suggested for all other complexes.