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Aryl-Decorated Ru-I...
Aryl-Decorated Ru-II Polypyridyl-type Photosensitizer Approaching NIR Emission with Microsecond Excited State Lifetimes
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- Schlotthauer, Tina (författare)
- Univ Jena, Lab Organ & Macromol Chem IOMC, Humboldtstr 10, D-07743 Jena, Germany.
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- Suchland, Benedikt (författare)
- Univ Jena, Lab Organ & Macromol Chem IOMC, Humboldtstr 10, D-07743 Jena, Germany.
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- Goerls, Helmar (författare)
- Univ Jena, Lab Inorgan & Analyt Chem, Lessingstr 8, D-07743 Jena, Germany.
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- Parada, Giovanny A. (författare)
- Uppsala universitet,Fysikalisk kemi
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- Hammarström, Leif (författare)
- Uppsala universitet,Fysikalisk kemi
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- Schubert, Ulrich S. (författare)
- Univ Jena, Lab Organ & Macromol Chem IOMC, Humboldtstr 10, D-07743 Jena, Germany.;Univ Jena, CEEC Jena, Philosophenweg 7a, D-07743 Jena, Germany.
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- Jaeger, Michael (författare)
- Univ Jena, Lab Organ & Macromol Chem IOMC, Humboldtstr 10, D-07743 Jena, Germany.;Univ Jena, CEEC Jena, Philosophenweg 7a, D-07743 Jena, Germany.
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Univ Jena, Lab Organ & Macromol Chem IOMC, Humboldtstr 10, D-07743 Jena, Germany Univ Jena, Lab Inorgan & Analyt Chem, Lessingstr 8, D-07743 Jena, Germany. (creator_code:org_t)
- 2016-05-26
- 2016
- Engelska.
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Ingår i: Inorganic Chemistry. - : American Chemical Society (ACS). - 0020-1669 .- 1520-510X. ; 55:11, s. 5405-5416
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Bis-tridentate Ru-II complexes based on the dqp scaffold (dqp is 2,6-di(quinolin-8-yl)pyridine) with multiple aryl substituents were explored to tailor the absorption and emission properties. A synthetic methodology was developed for the facile synthesis and purification of homo- and heteroleptic bis-tridentate Ru complexes. The effect of the aryl substituents in the para positions of the pyridine and quinoline subunits was detailed by X-ray crystallography, steady state and time-resolved spectroscopy, electrochemistry, and computational methods. The attachment of the aryl groups results in enhanced molar extinction coefficients with the largest effect in the pyridine position, whereas the quinoline substituent leads to red-shifted emission tailing into the NIR region (up to 800 nm). Notably, the excited state lifetimes remain in the microsecond time scale even in the presence of O-2, whereas the emission quantum yields are slightly increased with respect to the parental complex [Ru(dqp)(2)](2+). The peripheral functional groups (Br, Me, OMe) have only a minor impact on the optical properties and are attractive to utilize such complexes as functional building blocks.
Ämnesord
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
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