Synthesis of Amphiphilic RuII Heteroleptic Complexes Based on Benzo[1,2‐b:4,5‐b′]dithiophene: Relevance of the Half‐Sandwich Complex Intermediate and Solvent Compatibility |
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| Authors: | Dr Maxence Urbani María Medel Dr Sangeeta Amit Kumar Dr Mine Ince Prof Ashok N Bhaskarwar Dr David González‐Rodríguez Michael Grätzel Prof Mohammad Khaja Nazeeruddin Prof Tomás Torres |
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| Affiliation: | 1. Departamento de Química Orgánica, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid (Spain);2. Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology (EPFL), Station?6, 1015 Lausanne (Switzerland);3. Instituto Madrile?o de, Estudios Avanzados (IMDEA)‐Nanociencia c/Faraday, 9, Cantoblanco, 28049 Madrid (Spain);4. Ion Adsorption Laboratory, Department of Chemical Engineering, Indian Institute of Technology at Delhi, Hauz Khas, New Delhi, 110016 (India);5. Mersin University, Department of Energy Systems Engineering, Faculty of Tarsus Technology, 33480, Mersin (Turkey);6. Group for Molecular Engineering of Functional materials Institute of Chemical Sciences and Engineering Swiss Federal Institute of Technology (EPFL), Station 6, 1015 Lausanne (Switzerland) |
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| Abstract: | The detailed synthesis and characterization of four ruthenium(II) complexes RuLL′(NCS)2] is reported, in which L represents a 2,2′‐bipyridine ligand functionalized at the 4,4′ positions with benzo1,2‐b:4,5‐b′]dithiophene derivatives (BDT) and L′ is 2,2′‐bipyridine‐4,4′‐dicarboxylic acid unit (dcbpy) (NCS=isothiocyanate). The reaction conditions were adapted and optimized for the preparation of these amphiphilic complexes with a strong lipophilic character. The photovoltaic performances of these complexes were tested in TiO2 dye‐sensitized solar cell (DSSC) achieving efficiencies in the range of 3–4.5 % under simulated one sun illumination (AM1.5G). |
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| Keywords: | dye/pigments ligands microwave chemistry ruthenium synthetic methods |
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