Near infra-red emission from a mer-Ru(II) complex: consequences of strong σ-donation from a neutral, flexible ligand with dual binding modes

作者: Amlan K. Pal , Nelsi Zaccheroni , Sebastiano Campagna , Garry S. Hanan

DOI: 10.1039/C3CC49880H

关键词: LigandAbsorption spectroscopyCharge (physics)CrystallographyNear infra redBite angleStereochemistryTridentate ligandChelating ligandsChemistry

摘要: A rare example of dual coordination modes by a novel tridentate ligand gives rise to unique fac-and mer-Ru(II/III) complexes. The mer-RuII-complex displays the farthest red-shift triplet metal-to-ligand charge transfer (3MLCT) emission with for mononuclear complex. This observation is consequence large bite angle and strong σ-donation ligand, combined effect which helps separate energy 3MLCT 3MC states.

参考文章(46)
Richard Eisenberg, Rethinking Water Splitting Science. ,vol. 324, pp. 44- 45 ,(2009) , 10.1126/SCIENCE.1172247
Jianhua Wang, Garry S. Hanan, Fr�d�rique Loiseau, Sebastiano Campagna, Prolonged luminescence lifetimes of Ru(II) complexes via the multichromophore approach: the excited-state storage element can be on a ligand not involved in the MLCT emitting state Chemical Communications. ,vol. 2004, pp. 2068- 2069 ,(2004) , 10.1039/B405619A
Glenn A. Crosby, James N. Demas, Measurement of photoluminescence quantum yields. Review The Journal of Physical Chemistry. ,vol. 75, pp. 991- 1024 ,(1971) , 10.1021/J100678A001
Rajesh Chakrabarty, Partha Sarathi Mukherjee, Peter J. Stang, Supramolecular Coordination: Self-Assembly of Finite Two- and Three-Dimensional Ensembles Chemical Reviews. ,vol. 111, pp. 6810- 6918 ,(2011) , 10.1021/CR200077M
Henk J. Bolink, Luca Cappelli, Eugenio Coronado, Michael Grätzel, Md. K. Nazeeruddin, Efficient and stable solid-state light-emitting electrochemical cell using tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) hexafluorophosphate. Journal of the American Chemical Society. ,vol. 128, pp. 46- 47 ,(2006) , 10.1021/JA0565065
Michael Jäger, Amanda Smeigh, Florian Lombeck, Helmar Görls, Jean-Paul Collin, Jean-Pierre Sauvage, Leif Hammarström, Olof Johansson, Cyclometalated RuII Complexes with Improved Octahedral Geometry: Synthesis and Photophysical Properties Inorganic Chemistry. ,vol. 49, pp. 374- 376 ,(2010) , 10.1021/IC9020788
Brian O'Regan, Michael Grätzel, A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films Nature. ,vol. 353, pp. 737- 740 ,(1991) , 10.1038/353737A0
Anthony Harriman, Annabelle Mayeux, Antoinette De Nicola, Raymond Ziessel, Synthesis and photophysical properties of ruthenium(II) bis(2,2′:6′,2″-terpyridine) complexes constructed from a diethynylated-thiophene residue Physical Chemistry Chemical Physics. ,vol. 4, pp. 2229- 2235 ,(2002) , 10.1039/B109966N