Thomas W. Rees
Synthesis and Characterization of a Series of Bis-homoleptic Cycloruthenates with Terdentate Ligands as a Family of Panchromatic Dyes.
Rees, Thomas W.; Liao, JinFeng; Sinopoli, Alessandro; Male, Louise; Calogero, Giuseppe; Curchod, Basile F.E.; Baranoff, Etienne
Authors
JinFeng Liao
Alessandro Sinopoli
Louise Male
Giuseppe Calogero
Dr Basile Curchod basile.f.curchod@durham.ac.uk
Academic Visitor
Etienne Baranoff
Abstract
A series of six homoleptic bis-cyclometalated ruthenium complexes, Ru(N^N^C)2, is reported where N^N^C is a 6-(2,4-difluoro-3-R3-phenyl)-4-R2-4′-R1-2,2′-bipyridine with R3 = −H or −CF3 and R2 and R1 = −COOEt or −CF3. An effective synthesis of the ligands and the complexes is described. The UV–visible absorption studies demonstrate that these complexes are panchromatic dyes absorbing up to 900 nm. Importantly, the onset of absorption depends only on the substitution on the metalated phenyl, whereas the intensity of absorption throughout the spectra is a function of substituents on both the phenyl and the bipyridine moieties. The same trend is observed in electrochemistry as the redox gap depends only on the substitution on the metalated phenyl, whereas the oxidation and reduction potentials are a function of substituents on both the phenyl and the bipyridine moieties. Preliminary tests as sensitizer for dye-sensitized solar cells demonstrate that the number of anchoring groups on the dye has a major influence on the device efficiency.
Citation
Rees, T. W., Liao, J., Sinopoli, A., Male, L., Calogero, G., Curchod, B. F., & Baranoff, E. (2017). Synthesis and Characterization of a Series of Bis-homoleptic Cycloruthenates with Terdentate Ligands as a Family of Panchromatic Dyes. Inorganic Chemistry, 56(16), 9903-9912. https://doi.org/10.1021/acs.inorgchem.7b01412
Journal Article Type | Article |
---|---|
Acceptance Date | Jun 2, 2017 |
Online Publication Date | Aug 1, 2017 |
Publication Date | 2017-08 |
Deposit Date | Nov 6, 2017 |
Journal | Inorganic Chemistry |
Print ISSN | 0020-1669 |
Electronic ISSN | 1520-510X |
Publisher | American Chemical Society |
Peer Reviewed | Peer Reviewed |
Volume | 56 |
Issue | 16 |
Pages | 9903-9912 |
DOI | https://doi.org/10.1021/acs.inorgchem.7b01412 |
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