Visible-light sensitized photocatalytic hydrogen generation using a dual emissive heterodinuclear cyclometalated iridium(III)/ruthenium(II) complex
| Autor: | Sven Rau, Dieter Sorsche, Joachim Kübel, Nils Rockstroh, Benjamin Dietzek, Stefanie Schönweiz, Sebastian A. Rommel, Carsten Streb |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010405 organic chemistry
Chemistry Organic Chemistry chemistry.chemical_element 010402 general chemistry Electrochemistry Photochemistry 01 natural sciences Biochemistry 0104 chemical sciences Catalysis Ruthenium Inorganic Chemistry Triethanolamine Materials Chemistry Photocatalysis medicine Photosensitizer Iridium Physical and Theoretical Chemistry medicine.drug Visible spectrum |
| Zdroj: | Journal of Organometallic Chemistry. 821:163-170 |
| ISSN: | 0022-328X |
| DOI: | 10.1016/j.jorganchem.2016.04.002 |
| Popis: | The synthesis, spectroscopic and electrochemical properties of the heterodinuclear iridium(III)/ruthenium(II) photosensitizer Ir-BBI-Ru, i.e. [(ppy)2Ir-(tmBBI)-Ru(tbbpy)2][PF6] (ppy = 2-phenylpyridine; tmBBI = 5,5′,6,6′-tetramethyl-2,2′-bibenzimidazole; tbbpy = 4,4′-di-tert-butyl-2,2′-bipyridine) are presented. Its absorbance lies well within the visible light spectrum, showing absorption features typical for dinuclear ruthenium(II) bibenzimidazole complexes. The complex exhibits characteristic emission properties of both metal centers, indicative of an incomplete energy transfer. The application of Ir-BBI-Ru as visible-light absorbing photosensitizer in the field of photocatalytic water reduction is demonstrated by considerable hydrogen generation with a Co(II) catalyst and triethanolamine as sacrificial donor. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect