1379822-08-8Relevant academic research and scientific papers
Ruthenium(II) photosensitizers of tridentate click-derived cyclometalating ligands: A joint experimental and computational study
Schulze, Benjamin,Escudero, Daniel,Friebe, Christian,Siebert, Ronald,Goerls, Helmar,Sinn, Stephan,Thomas, Martin,Mai, Sebastian,Popp, Juergen,Dietzek, Benjamin,Gonzalez, Leticia,Schubert, Ulrich S.
supporting information; experimental part, p. 4010 - 4025 (2012/06/01)
A systematic series of heteroleptic bis(tridentate)ruthenium(II) complexes of click-derived 1,3-bis(1,2,3-triazol-4-yl)benzene N^C^N-coordinating ligands was synthesized, analyzed by single crystal X-ray diffraction, investigated photophysically and electrochemically, and studied by computational methods. The presented comprehensive characterization allows a more detailed understanding of the radiationless deactivation mechanisms. Furthermore, we provide a fully optimized synthesis and systematic variations towards redox-matched, broadly and intensely absorbing, cyclometalated ruthenium(II) complexes. Most of them show a weak room-temperature emission and a prolonged excited-state lifetime. They display a broad absorption up to 700 nm and high molar extinction coefficients up to 20 000 M-1 cm-1 of the metal-to-ligand charge transfer bands, resulting in a black color. Thus, the complexes reveal great potential for dye-sensitized solar-cell applications. Making sense of sensitization: A systematic series of heteroleptic bis(tridentate) ruthenium(II) complexes of 1,3-bis(1,2,3-triazol-4-yl)benzene N C N-coordinating ligands and 2,2′:6′,2′′-terpyridine was synthesized, analyzed by single-crystal X-ray diffraction, investigated photophysically and electrochemically, and studied by computational methods (see figure) revealing great potential for application in dye-sensitized solar cells. Copyright
