113744-24-4Relevant academic research and scientific papers
Fraternal twin iridium hemicage chelates
St-Pierre, Gabriel,Ladouceur, Sebastien,Fortin, Daniel,Zysman-Colman, Eli
experimental part, p. 11726 - 11731 (2012/01/04)
The synthesis and complete photophysical characterization of rigidified neutral hemicage iridium complexes are presented. The hemicage ligands were obtained via a modular synthesis, which will facilitate the expansion of future hemicage syntheses. Slight
Facile synthesis of cyclometalated ruthenium complexes with substituted phenylpyridines
Sasaki, Isabelle,Vendier, Laure,Sournia-Saquet, Alix,Lacroix, Pascal G.
, p. 3294 - 3302 (2007/10/03)
We have developed a new strategy that uses the Kroehnke synthesis for the preparation of various substituted phenylpyridines in excellent yields (up to 88%). Starting with the appropriate commercially available acetophenone, a variety of phenylpyridines substituted by either electron-donating (i.e. methyl, methoxy) or -withdrawing groups (i.e. bromide, nitro) on the phenyl ring are obtained in a two-step synthesis. The corresponding functionalized cyclometalated ruthenium complexes can be prepared with unusually high yields by using methanol as reaction solvent. The electrochemical data of the complexes demonstrate the strong σ-donating character of the anionic phenylpyridine ligand. X-ray analyses of four complexes show a shortening of the Ru-C bond associated with the elongation of only one of the five Ru-N bonds (trans effect). Wiley-VCH Verlag GmbH & Co, KGaA, 2006.
Accelerated luminophore discovery through combinatorial synthesis
Lowry, Michael S.,Hudson, William R.,Pascal Jr., Robert A.,Bernhard, Stefan
, p. 14129 - 14135 (2007/10/03)
A method for accelerating the discovery of ionic luminophores using combinatorial techniques is reported. The photophysical properties of the resulting transition-metal-based chromophores were compared against a series of analogous, traditionally prepared species. The strong overlap between these two sets confirms the identity of the parallel synthesis products and supports the truthfulness of the combinatorial results. Further support for the combinatorial method comes from the adherence of these complexes to the energy gap law. The relationship between the structure of a complex and its photophysical properties was also considered, and static DFT calculations were used to assess whether it is feasible to predict the luminescent behavior of novel materials.
