Journal
INORGANIC CHEMISTRY COMMUNICATIONS
Volume 46, Issue -, Pages 113-117Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.inoche.2014.05.025
Keywords
Crystal structures; Coordination polymers; Phenoxo bridges; Magnetic properties
Categories
Funding
- Foundation of Science and Technology (FCT), Portugal [SFRH/BPD/78264/2011, SFRH/BPD/76192/2011]
- Slovak grant agencies [VEGA 1/0233/12, VEGA 1/0522/14, APVV-0014-11]
- [PEst-OE/QUI/UI0100/2013]
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[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.
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