期刊
INORGANICA CHIMICA ACTA
卷 388, 期 -, 页码 71-77出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2012.03.009
关键词
Copper; Crystal structure; Magnetic properties; Bridged dicyanamide; Polymeric complexes
资金
- Department of Chemistry - University of Louisiana at Lafayette
- Spanish MEC [CTQ2009-07264]
- Generalitat de Catalunya [2009SGR1454]
The complexes {[Cu(L)(mu(1,5)-dca)](ClO4)}(n) (1, L = bepza; 2, L = bedmpza) and [Cu(L)(mu(1,5)-dca)(dca)](n) (3, L = bepza; 4, L = bedmpza), where dca = dicyanamide anion, bepza = bis[2-(1-pyrazolyl)ethyl)]amine and bedmpza = bis[2-(di-2,5-dimethyl-1-pyrazolyl)ethyl)]amine, were synthesized and characterized by spectroscopic techniques. The crystal structures of complexes 1 and 3 confirmed their polymeric 1D chain nature through the two terminal nitrile groups of the mu 1,5-bridging dicyanamido ligand. The magnetic susceptibility measurements of the two complexes 1 and 3 revealed the occurrence of very weak antiferromagnetic coupling with J values of -0.17 and -0.03 cm (1), respectively. (C) 2012 Elsevier B. V. All rights reserved.
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