Absorption spectra, luminescence properties and electrochemical behavior of Mn(II), Fe(III) and Pt(II) complexes with quaterpyridine ligand

6,6‴-Dimethyl-2,2′;6′,2″;6″,2‴-quaterpyridine ligand L reacts with Mn(II) 1, Fe(III) 2 and Pt(II) 3, 4 ions what results in formation of mononuclear complexes. The reactions were carried out under different conditions (various solvent, temperature, counterion), leading to new complexes [MnL(H2O)Cl][ClO4], [FeLCl2][FeCl4], [PtL][Pt(CH3CN)Cl3]2 in which dimethylquaterpyridine acts as tetradentate ligand. The use of more drastic reaction conditions leds to obtain of a novel organoplatinum(II) complex [Pt(L-H)Cl], that reveal unique tridentate coordination mode C, N, N′. Obtained compounds were thoroughly studied in terms of their structural studies. We also have investigated physicochemical and electrochemical properties of these complexes.

Synthesis of Mn(II), Fe(II) and Pt(II) complexes with dimethylquaterpyridine leads to their crystal structures [MnL(H2O)Cl][ClO4], [FeLCl2][FeCl4], [PtL][Pt(CH3CN)Cl3]2, in which ligand L acts as tetradentate one (by use mild reaction condition). Interesting structure of organoplatinum(II) complex reveal unique C,N,N′ mode by use more drastic conditions.Figure optionsDownload as PowerPoint slide