Ruthenium luminophoric

The sensor for the measurement of high levels of CO2 in gas phase was developed, as well90. It was based on fluorescence resonance energy transfer between 0 long-lifetime ruthenium polypyridyl complex and the pH-active disazo dye Sudan III. The donor luminophore and the acceptor dye were both immobilized in a hydrophobic silica sol-gel/ethyl cellulose hybrid matrix. The sensor exhibited a fast and reversible response to carbon dioxide over a wide range of concentrations. 

Bernhard and coworkers [58] have addressed the discovery of ionic iridium(III) and ruthenium(II) complexes by combinatorial luminophore synthesis and screening (Scheme 5.9). Starting from iridium trichloride, cyclometalation with (hetero)arylpyridyl ligands 45 (Fig. 5.17) gives rise to the formation of binuclear iridium complexes 46. Upon complexation with bidentate N,N- or P,P-ligands 47 (Fig. 5.17), the cationic complex 48 is formed, which upon anion metathesis with hexafluorophosphate is transformed into the target complex 49. In this sequence, the step from 46 to 48 was performed in a traditional and a parallel manner, the latter leading to a library of 100 iridium and 10 ruthenium complexes. 

Phenanthroline and extraction of the formed complex into 1,2-dichloroethane was used to determine iron in phosphate luminophores [5]. The method using 1,10-phenanthroline and FIA system has been described [6]. The use of 4,7-diphenyl-1,10-phenanthroline as chromogenic reagent allows simultaneous determination of iron (and ruthenium) as ternary complexes by extractive (1,2-dichloroethane) zero-order and second derivative spectrophotometry [7]. Iron (Co and Cu) in cobalt magnetic alloys were determined by using... 

Even with solvents for ECL that have a narrow potential window so that only a reduced or oxidized form of a luminophore can be produced, e.g., tris(2,2 -bipyridine) ruthenium(ll), Ru(bpy>3 (bpy = 2,2 -bipyridine), in aqueous solutions, it is still possible to generate ECL by use of a coreactant. 

Bottini, M. Magrini, A. Di Venere, A. Bellucci, S. Dawson, M. L Rosato, N. Bergamaschi, A. Mustelin, T. Synthesis and characterization of supramolecular nanostructures of carbon nanotubes and ruthenium-complex luminophores. J. Nanosci. Nanotechnol. 2006, 6,1381-1386. 

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