Dinuclear based polymeric copper(II) complexes derived from a Schiff base ligand: effect of secondary bridging moieties on geometrical orientations and magnetic properties

被引：20
|
作者：
Hazra, Susanta [1 ]
Karmakar, Anirban [1 ]
Guedes da Silva, M. Fatima C. [1 ,2 ]
DIhan, Lubor [3 ]
Boca, Roman [4 ]
Pombeiro, Armando J. L. [1 ]
机构：
[1] Univ Lisbon, Inst Super Tecn, Ctr Quim Estrutural, P-1049001 Lisbon, Portugal
[2] Univ Lusofona Humanidades & Tecnol, ULHT Lisbon, P-1749024 Lisbon, Portugal
[3] Slovak Univ Technol Bratislava, FCHPT, Inst Inorgan Chem, SK-81237 Bratislava, Slovakia
[4] Univ SS Cyril & Methodius, FPV, Dept Chem, SK-91701 Trnava, Slovakia
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2014年 / 46卷
关键词：
Crystal structures; Coordination polymers; Phenoxo bridges; Magnetic properties; MAGNETOSTRUCTURAL CORRELATIONS;
D O I：
10.1016/j.inoche.2014.05.025
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
[1 + 1] condensation of salicylaldehyde and 2-aminobenzenesulfonic acid led to the formation of the acyclic Schiff base o-[(o-hydroxyphenyl)methylideneamino]benzenesulfonic acid (H2L) which, upon reaction with Cu(II) salts in the presence of triethylamine or 4,4'-bipyridine, formed a 2D polymeric species [Cu2L2](n) (1) via sulfonate bridge and a 1D polymeric complex [{Cu2L2(4,4'-bipy)}center dot DMF](n) (2) via 4,4'-bipyridine bridge, respectively. The copper cations sit on O4N basal- or O3N2 facial-edge-sharing inverted square pyramidal environments in I or 2, respectively. In spite of their comparable compositions, the relative orientations of the metal polyhedra affect the magnetic properties of these polymers since 1, in contrast to 2, presents a strong exchange interaction of an antiferromagnetic nature. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：113 / 117
页数：5
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