Reactions of bis(isopropylxanthato)nickel(II) with nitrogen-donor ligands—II

• Published in: Polyhedron Vol. 14; no. 23; pp. 3627 - 3633
• Main Authors: Trávníc̆ek, Zdenĕk, Pastorek, Richard, S̆indelár̆, Zdenĕk, Klic̆ka, Roman, Marek, Jaromír
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 1995
• ISSN: 0277-5387
• DOI: 10.1016/0277-5387(95)00159-P

New complexes of bivalent nickel with isopropylxanthates and nitrogen-donor ligands of composition [Ni(Pr ixa) 2(L)], [Ni(Pr ixa) 2(L 1) 2], [Ni(L 2) 2](Pr ixa) 2, and [Ni(L 3) 3] (Pr ixa) 2 have been synthesized, where Pr ixa = i-C 3H 7OCS 2 −, L = 1,2-diaminopropane (1,2-pn), N, N, N′, N′=tetramethylethylenediamine (tmen) or 4,4′-bipyridine (4,4′-bipy), L 1 = pyridine (py), L 2 = diethylenetriamine (dien) and L 3 = ethylenediamine (en), 1,2-diaminopropane or 1,10-phenanthroline (phen). The compounds have been characterized by elemental analysis, IR and UV-vis spectroscopy, magnetochemical measurements, molar conductivity and thermal analysis. The compounds containing the complex cation have been one-electron irreversibly oxidized using cyclic voltammetry. The crystal and molecular structures of [Ni(Pr ixa) 2(tmen)] and [Ni(phen) 3](Pr ixa) 2 have been elucidated.