Mono- and polynuclear Schiff base complexes derived from polyoxadiamines
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- 作者：Aguiari ; Antonio ; Brianese ; Nicola ; Tamburini ; Sergio ; Vigato ; Pietro A.
- 关键词：Schiff base complexes ; Compartmental ligand complexes ; Polynuclear complexes ; Copper complexes ; Nickel complexes ; Lanthanide complexes
- 刊名：Inorganica Chimica Acta
- 出版年：1995
- 出版时间：July, 1995
- 年：1995
- 卷：235
- 期：1-2
- 页码：233-244
- 全文大小：1.16 M
文摘
New compartmental macroacyclic and macrocyclic Schiff bases have been prepared by reaction of the formyl precursors 2,3-dihydroxy-benzaldehyde, 3-methoxy-2-hydroxy-benzaldehyde and 2,6-diformyl-4-chlorophenol with 1,2-diaminoethane, 1,3-diaminopropane and the polyethyleneoxy-diamine H2N(CH2)2[O(CH2)2]nNH2 (n = 1, 2, 3) also with the presence of a templating ion. In these ligands the shape of one or both compartments has progressively been enlarged and the denticity increased in order to link up to four metal ions into the coordination moiety. These ligands react with copper(II), nickel(II) or lanthanide(III) salts to form mononuclear, homo- and heterodinuclear, homotrinuclear or homotetranuclear complexes. The ligands and the complexes were characterized by elemental analysis, IR, 1H and 13C NMR, mass spectrometry, magnetic susceptibility and SEM investigations.