Synthesis and Characterization of Some 10-, 12- and 14-Membered Macrocyclic Ligand Complexes of Nickel(II)

Abstract

The template condensation between 1,1,2,2-tetrachloroethane or carbon tetrachloride and 1,2-diaminoethane or 1,3-diaminopropane in the presence of nickel(II) ion are described. The formulation of the synthesized four new macrocyclic products as (l,4,6,9-tetraaza-5,5,10,10-tetrachlorocyclodecane) aquachloronickel(II) chloride ([Ni(TTCE)(H₂O)Cl]Cl), (1,4,7,10-tetraaza-5,6,11,-12-tetrachlorocyclododecane)diaquanickel(II) chloride ([Ni(TTCD)(H₂0)₂]Cl₂), (1,5,7,11-tetraaza-6,6,12,12-tetrachlorocycIododecane)diaquanickel(II) chloride ([Ni(TTDE)(H₂O)₂]-Cl₂) and (l,5,8,12-tetraaza-6,7,13,14-tetrachlorocyclotera-decane)diaquanickel(II) chloride ([Ni(TTTE)(H₂O)₂]Cl₂) has been supported by elemental analyses, conductivity measurements, melting points and spectroscopic studies.