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Issue 11, 2010
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Syntheses, crystal structures and properties of silver(I) and copper(II) complexes with an oxazoline-containing tetradentate ligand

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Abstract

Six new coordination complexes, [AgL]CF3SO3 (1 and 2), [Ag2L2](NO3)2·4CH3NO2 (3), [AgL]NO3·0.5CH3OH (4), [AgL]BF4 (5) and [Cu4L2(OCH3)2(OH)2(NO3)2](NO3)2·0.32H2O (6), were obtained by reactions of the corresponding metal salts with ligand N,N′-bis[4-(4,5-dihydrooxazol-2-yl)-benzyl]ethane-1,2-diamine (L). The results of X-ray crystallographic analysis indicate that complexes 1 and 2 are supramolecular isomers with a wavelike cationic two-dimensional network structure of 1 and a double-stranded helical chain of 2. Complexes 4 and 5 also have helical chain structures with P and M forms. Differing from polymeric structure of 1, 2, 4 and 5, complexes 3 and 6 are a M2L2 molecular rectangle and a M4L2 cage, respectively. The results show that the flexible ligand L can have different conformation and coordination modes leading to complexes with varying structures. Magnetic data show that there are antiferromagnetic interactions in the dimeric unit of complex 6.

Graphical abstract: Syntheses, crystal structures and properties of silver(i) and copper(ii) complexes with an oxazoline-containing tetradentate ligand

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Publication details

The article was received on 04 Feb 2010, accepted on 12 Apr 2010 and first published on 03 Jun 2010


Article type: Paper
DOI: 10.1039/C0NJ00092B
New J. Chem., 2010,34, 2436-2444

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    Syntheses, crystal structures and properties of silver(I) and copper(II) complexes with an oxazoline-containing tetradentate ligand

    Y. Huang, G. Liu, X. Zhou, T. Okamura, Z. Su, J. Fan, W. Sun, J. Yu and N. Ueyama, New J. Chem., 2010, 34, 2436
    DOI: 10.1039/C0NJ00092B

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