期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 18, 期 13, 页码 4010-4025出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201103451
关键词
click chemistry; computational methods; cyclometalation; photosensitizers; ruthenium
资金
- Thuringian Ministry for Education, Science and Culture [B514-09049]
- DAAD
- Fonds der Chemischen Industrie
A systematic series of heteroleptic bis(tridentate)ruthenium(II) complexes of click-derived 1,3-bis(1,2,3-triazol-4-yl)benzene N boolean AND C boolean AND 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.
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