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Three novel isostructural lanthanide(III) coordinationpolymers(LnCPs), {[Ln3(bidc)4(phen)2(NO3)]·2H2O}n(Ln= Gd (1), Eu (2), Tb (3); H2bidc = benzimidazole-5,6-dicarboxylic acid, and phen = 1,10-phenanthroline),were synthesized via hydrothermal reaction and characterized. Thecomplexes crystallize in the chiral space group P212121. They possess 1D structuresbased on lanthanide trinuclear clusters containing Ln(1)O9, Ln(2)O6N2, and Ln(3)O6N2polyhedra by bidc linkers, and phen and nitrate act as terminalligands. The bidc and phen ligands provide efficient energy transferfor the sensitization of Eu(III) and Tb(III) complexes. The complexes 2and 3emit red and green light, respectively.Lifetimes and quantum yields of luminescence are 0.86 ms and 13.20%for 2and 0.32 ms and 2.08% for 3. Tuningof white-light emission by adjusting the doping concentration of Eu(III)and Tb(III) ions in the Gd(III) complex was achieved. [ABSTRACT FROM AUTHOR]

A surfactant ion-pair complex, [Ru(bpy)2L][Eu(NTA)4]2 (in which L = 1-docosyl-2-(2- pyridyl)benzimidazole, bpy = 2,2'-bipyridine, and NTA = 4,4,4-trifluoro-1-(2-naphthyl)-1,3-butanedionato) has been synthesized. The surface pressure−area isotherm measurements show that the complex forms a stable Langmuir film at the air−water interface without adding any electrolytes into the subphase. The monolayers formed at the surface pressures of 5 mN m-1 and 20 mN m-1, have been successfully transferred onto glass and quartz substrates with the transfer ratios close to unity. The Langmuir−Blodgett films were studied by UV−visible, infrared, and emission spectroscopies, atomic force microscopy, and cyclic voltammetry. The optical, redox, and morphology properties of the LB films were found to be significantly affected by the target surface pressures used for the film depositions. [ABSTRACT FROM AUTHOR]