engleski

COPPER(II) COMPLEXES WITH N-ARYLALKYLIMINODIACETAMIDE LIGANDS

The amide linkage is the most fundamental chemical bond in all proteins [1]. The binding of metal ions by amides, peptides and proteins is of great interest because of the importance of metal ions in biological systems [2]. Beside their obvious biological significance, amide ligands have many other valuable properties and many of them already found their practical application. They are used as pharmacological agents owing to their relatively good solubility and low toxicity. Amides also show potential for metal ion recognition. Furthermore, the amide moiety provides various possibilities of hydrogen bonding motifs which can be used to control the self-assembly processes between metal complexes in supramolecular coordination chemistry [3, 4]. Recently, we discovered interesting supramolecular architectures in the structures of Cu(II) and Ni(II) complexes with N-arylalkyliminodiacetamides as hydrogen bond donors and nitrate ions as hydrogen bond acceptors [5, 6]. In order to obtain similar architectures with other oxo-ions such as perchlorate ions (same charge, different symmetry) we synthesized a few novel copper complexes with N-arylalkyl derivatives of iminodiacetamide, namely [Cu(Bnimda)2](ClO4)2 (1), [Cu(Peimda)2](ClO4)2 (2) and [Cu(Ppimda)2](ClO4)2∙2H2O (3) (Bnimda, Peimda, Ppimda ; Bn = benzyl, Pe = 2-phenylethyl ; Pp = 3-phenylprop-1-yl).

Copper(II) complexes ; Iminodiacetamide ligands

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