| Conţinutul numărului revistei |
| Articolul precedent |
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 SM ISO690:2012MADALAN, Augustin M., RUIZ-PEREZ, Catalina, MELNIK, E., KRAVTSOV, Victor, ANDRUH, Marius. Mononuclear and one-dimensional polynuglear Cu(II) complexes with two different chelatic ligands. Syntheses, structural and spectral characterization of [Cu(acac)(phen)(H2O)](ClO4) and [Cu(acac)(bipym) (ClO4)]n. In: Revue Roumaine de Chimie, 2005, vol. 50, pp. 11-17. ISSN 0035-3930. |
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  Revue Roumaine de Chimie |
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| Volumul 50 / 2005 / ISSN 0035-3930 | ||||||
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| Pag. 11-17 | ||||||
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Two new complexes containing the acetylacetonato ligand have been obtained and crystallographically characterized, [Cu(acac)(phen)(H2O)] (ClO4) - 1 and [Cu(acac)(bipym)(ClO4)]n - 2 (acac = acetylacetonate, phen= 1,10-phenantroline, bipym = 2,2′- bipyrimidine). In 1 the copper(II) ion exhibits a square pyramidal geometry with the chelatic ligands forming the basal plane, and the water molecule coordinated in the apical position. The O-H...O hydrogen bonds and π-π stacking interactions unite complexes in supramolecular layers. In the polynuclear complex 2, the copper(II) ions are placed in a distorted octahedral environment with the chelatic ligands in the equatorial plane and weakly connected perclorate anions in the axial positions, acting as bridges resulting in infinite polynuclear chain. The spectral properties of the two compounds were investigated in the UV, visible and IR domains. |
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