Shin-Geol Kang, Jung Soo-Kyung
1991
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0
Influential Citations
2
Citations
Journal
Journal of The Korean Chemical Society
Abstract
Template condensation reactions of formaldehyde with appropriate tetramines and diamines in the presence of N(II) or Cu(II) ion produce square planar complexes of hexaaza macrotricyclic and macrotetracyclic ligands (M = Ni(II) or Cu(II); L = 4-methyl-1,3,6,8,11,14-hexaazatricyclo[12,2,1,]octadecane(C), 1,3,10,12,15,18-hexaazatetracyclo[16,2,1,docosane(D) 4-methyl-1,3,6,8,12,15-hexaazatricyclo[13,3,1,]eicosane(F), or 1,3,10,12,16,19-hexaazatetracyclo[l7,3,1,tetracosane(G). These complexes contain two 1,3-diazacyclopentane or 1,3-diazacyclohexane rings in the six-membered chelate rings. The complexes of C and F contain one methyl group and those of D and G one cyclohexane ring in the five-membered chelate ring. Synthesis and characterization of the Ni(II) and Cu(II) complexes are presented. The effects of the ligand structure on the equilibrium in aqueous solutions are described.