Reactions of bis(3-aminopropyl)amine with formaldehyde in the presence of a metal ion:Preparation of a metal-free macropolycycle and a dinuclear copper(II)complex

摘要

The reaction of bis(3-aminopropyl)amine with excess formaldehyde in the presence of Ni~(2+)ion produces the macropentacyclic compound L1(ClOA)2(1)L1=1,3,7,11,13,17-hexaazapentacyclo[15.3.1.1~(3.7).1~(7.13).1~(13.17)]tetracosane).The dinuclear complex[Cu2(L2)2(H2O)2](ClO)4)2(2)(HL1=1-(3-aminopropyl)-3-(hydroxymethyl)-1,3-diazacyclohexane)as well as 1 can be prepared by the condensation reaction in the presence of Cu~(2+)ion.Interestingly,2·2H2O exhibits uncommon magnetic behavior.