Synthesis and Characterization of a Heteroleptic Ru(II) Complex of Phenanthroline Containing Oligo-Anthracenyl Carboxylic Acid Moieties

摘要: In an effort to develop new ruthenium(II) complexes, this work describes the design, synthesis and characterization of a functionalized phenanthroline complex with extended π-conjugation. The ligand were L1 (4,7-bis(2,3-dimethylacrylic acid)-1,10-phenanthroline), synthesized by direct aromatic substitution reaction, L2 (4,7-bis(trianthracenyl-2,3-dimethylacrylic which was dehalogenation halogenated compounds using zero-valent palladium cross-catalyzed reaction in absence magnesium-diene complexes and/or cyclooctadienyl nickel (0) catalysts generate carbon-carbon bond (C-C bond) polymerized hydrocarbon units. ruthenium [RuL1L2(NCS)2] showed improved photophysical properties (red-shifted metal-to-ligand charge-transfer transition absorptions enhanced molar extinction coefficients), luminescence interesting electrochemical properties. Cyclic square wave voltammetry revealed five major redox processes. number electron(s) transferred determined chronocoulometry each case. results show that processes I, II III are multi-electron transfer reactions while IV V involved one-electron reaction. property makes it promising candidate design chemosensors photosensitizers, its redox-active nature potential mediator electron photochemical