Synthesis and characterization of three Cd(II) Schiff-base macrocyclic N3O2 complexes

被引：15

作者：

Keypour, Hassan ^{[1
]}

Azadbakht, Reza ^{[1
]}

Khavasi, Hamidreza ^{[2
]}

机构：

[1] Bu Ali Sina Univ, Fac Chem, Hamadan, Iran

[2] Shahid Beheshti Univ, Dept Chem, Tehran, Iran

来源：

POLYHEDRON | 2008年 / 27卷 / 02期

关键词：

macrocyclic complexes; schiff-base; crystal structure; NMR spectroscopy;

D O I：

10.1016/j.poly.2007.10.029

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Three polyamine ligands of N1-(2-nitrobenzyl)-N1-(2-aniinoethyl)ethane-1,2-diamine (L-1), N1-(2-nitrobenzyl)-N1-(2-aniinoethyl)propane-1,3-diamine (L-2) and N1-(2-nitrobenzyl)-N1-(3-aniinopropyl)propane-1,3-diamine (L-3) were synthesized and their cyclocondensation with 2-[2-(2-formyl phenoxy)ethoxy]benzaldehyde (L-4) in the presence of various metal(II) ions was examined. These reactions only in the presence of a stoichiometric amount of cadmium(II) nitrate gave the related cadmium(II) macrocyclic Schiff-base complexes. In all the other cases no cyclic complexes have been obtained and metal(II) polyamines were the only products. The complexes have been studied with IR, H-1 NMR, C-13 NMR, DEPT, COSY, HMQC and microanalysis. The crystal structures of [Cd(NO3)(L-5)(mu-NO3)Cd(NO3)(L-5)]0.5Cd(NO3)(4) (1) and [CdL5(NO3)(CH3OH)]ClO4 (2) have been also determined. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：648 / 654

页数：7

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