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Synthesis, crystal structure and magnetic properties of a Cu(II) paddle-wheel complex with mixed bridges

AuthorsSoldevila Sanmartín, Joan; Ayllón, José A.; Calvet, Teresa; Font Bardia, Mercè; Domingo Pascual, M. Concepción; Pons, Josefina
KeywordsSupramolecular networks
Mixed bridges
Piperonylic acid
Copper(II) heteroleptic paddle-wheel
Issue DateSep-2016
CitationInorganic Chemistry Communications 71: 90-93 (2016)
AbstractThe synthesis and characterization of a mixed carboxylate paddle-wheel copper complex, with formula [Cu(μ-Pip)(μ-MeCO2)(MeOH)]2 (Pip = piperonylate or 1,3-benzodioxole-5-carboxylate and MeCO2 = acetate), is here reported. The described compound is a binuclear complex, each pair of similar carboxylate ligands occupying mutually trans bridging positions, while the methanol occupies the apical positions. The dimers are arranged into 2D layers in the bc plane through a network of O-H ⋯ O hydrogen bonds established between the methanol and the acetate ligand. Magnetic studies showed a strong antiferromagnetic Cu ⋯ Cu interaction (J = − 308 cm− 1), in agreement with the presence of four μ-κO-κO′ carboxylates bridging the metallic centers in the binuclear complex.
Publisher version (URL)http://dx.doi.org/10.1016/j.inoche.2016.07.009
Appears in Collections:(ICMAB) Artículos
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