Ligand design ruthenium ligands

Medlycott EA, Hanan GS (2005) Designing tridentate ligands for ruthenium(II) complexes with prolonged room temperature luminescence lifetimes. Chem Soc Rev 34 133-142... 

C. D., Plasmon light scattering in biology and medicine new sensing approaches, visions, and perspectives, Curr. Opin. Chem. Biol. 9,538-544, 2005 Medlycott, E.A. and Hanan, G.S., Designing tridentate ligands for ruthenium(II) complexes with prolonged room temperature luminescence lifetimes, Chem. Soc. Rev. 34, 133-142, 2005. 

A range of metal catalysts have also been studied in aqueous solution for the transformation of carbon dioxide, including rhodium, ruthenium and iridium bipyridine or phenanthroline complexes.One of the most effective systems is the iridium complex shown in Figure 3.14. The ligand design concept used in this study is very clever. The catalytic activity of the complex and its solubility in aqueous solution can be tuned by the pH of the solution.Under acidic... 

The review proper begins with an assessment of the current status of reaction mechanisms and then recent synthetic advances in both rhodium and ruthenium catalytic hydrogenation. In view of the vast literature generated it has been necessary to be selective, particularly in synthesis where advances in ligand design can render even recent work on similar substrates obsolete. Reference to reviews should alleviate the ensuing deficiencies. 

Many methods have been adopted in order to design or modify the ligands of ruthenium complexes to improve molecular recognition ability. For instance. 

Garcia JI et al (2007) QM/MM modeling of enantioselective pybox-ruthenium- and box-coppo -catalyzed cyclopropanation reactions scope, performance, and applications to ligand design. Chem-Eur J 13 4064—4073... 

NHC-bearing ruthenium carbene complexes are used to design latent and switch-able initiators. In this research field emphasis is given to the development of initiators, which are inactive at room temperature in the presence of the corresponding monomer and can be activated upon a proper stimulus such as heat [130] or light [131]. Once activated, a high polymerisation activity is desired which is provided by NHC co-ligands [132]. 

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