Syntheses and structures of heterometallic complexes M-Co(II) (M = Li(I), Mg(II), and Eu(III)) with anions of 2-naphthoic acid. An influence of the heterometal on the structure of the complex

• Published in: Russian journal of coordination chemistry 2015-12, Vol.41 (12), p.777-786
• Main Authors: Gol’dberg, A. E., Nikolaevskii, S. A., Kiskin, M. A., Sidorov, A. A., Eremenko, I. L.
• Format: Article
• Language: English
• Subjects: Chemistry; Chemistry and Materials Science; Inorganic Chemistry; Physical Chemistry
• ISSN: 1070-3284; 1608-3318
• DOI: 10.1134/S1070328415120015

A series of polynuclear heterometallic cobalt(II) 2-naphthoate complexes with lithium(I), magnesium(II), and europium(III) is synthesized: [(2,2′-Bipy) 2 Li 2 Co 2 (Naph) 6 ], [(2,4-Lut) 2 Co 2 Mg(Naph) 6 ], and [(2,2′-Bipy) 2 (EtOH) 2 Co 2 Eu 2 (Naph) 10 ] (Naph is 2-naphthoic acid anion, 2,2′-Bipy is 2,2′-bipyridine, and 2,4-Lut is 2,4-lutidine). The single crystals of the synthesized compounds are characterized by X-ray diffraction analysis (CIF files CCDC 1401987 ( I ), 1401988 ( II ), 1401989 ( III ), and 1401990 ( IV )). The compositions and structures of the molecular heterometallic complexes based on cobalt(II) cations and anions of 2-naphthoic acid are determined by the radius and coordination number of the introduced heterometal: the isomorphic substitution of one of the cobalt(II) ions is observed for the magnesium(II) complex, and tetranuclear complexes are formed in the case of lithium(I) and europium(III).