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- Abrahamsson, MariaUppsala universitet,Acceleratormasspektrometrigruppen,Fysikalisk-kemiska institutionen (author)
A new strategy for the improvement of photophysical properties in ruthenium(II) polypyridyl complexes. Synthesis and photophysical and electrochemical characterization of six mononuclear ruthenium(II) bisterpyridine-type complexes
- Article/chapterEnglish2005
Publisher, publication year, extent ...
- 2005-04-02
- American Chemical Society (ACS),2005
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-14716
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-14716URI
- https://doi.org/10.1021/ic048247aDOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-95084URI
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-23637URI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- QC 20100525
- The synthesis and characterization of six ruthenium(II) bistridentate polypyridyl complexes is described. These were designed on the basis of a new approach to increase the excited-state lifetime of ruthenium(II) bisterpyridine-type complexes. By the use of a bipyridylpyridyl methane ligand in place of terpyridine, the coordination environment of the metal ion becomes nearly octahedral and the rate of deactivation via ligand-field (i.e., metal-centered) states was reduced as shown by temperature-dependent emission lifetime studies. Still, the possibility to make quasi-linear donor-ruthenium-acceptor triads is maintained in the complexes. The most promising complex shows an excited-state lifet me of tau = 15 ns in alcohol solutions at room temperature, which should be compared to a lifetime of tau = 0.25 ns for [Ru(tpy)(2)](2+). The X-ray structure of the new complex indeed shows a more octahedral geometry than that of [Ru(tpy)(2)](2+). Most importantly, the high excited-state energy was retained, and thus, so was the potential high reactivity of the excited complex, which has not been the case with previously published strategies based on bistridentate complexes.
Subject headings and genre
- NATURVETENSKAP Kemi Oorganisk kemi hsv//swe
- NATURAL SCIENCES Chemical Sciences Inorganic Chemistry hsv//eng
- NATURVETENSKAP Kemi hsv//swe
- NATURAL SCIENCES Chemical Sciences hsv//eng
- transfer excited-states
- molecular-mechanics
- artificial photosynthesis
- luminescence lifetimes
- terpyridine complexes
- tridentate ligands
- ru(ii) complexes
- electron-donor
- photochemistry
- absorption
- Inorganic chemistry
Added entries (persons, corporate bodies, meetings, titles ...)
- Wolpher, H.Stockholms universitet,Institutionen för organisk kemi (author)
- Johansson, OlofStockholms universitet,Institutionen för organisk kemi(Swepub:uu)oljoh087 (author)
- Larsson, J.Uppsala universitet,Fysikalisk-kemiska institutionen (author)
- Kritikos, MikaelStockholms universitet,Avdelningen för strukturkemi(Swepub:su)kriti (author)
- Eriksson, LarsStockholms universitet,Avdelningen för strukturkemi(Swepub:su)lerik (author)
- Norrby, P. O. (author)
- Bergquist, JonasUppsala universitet,Avdelningen för analytisk kemi(Swepub:uu)jbe25356 (author)
- Sun, Licheng C.Stockholms universitet,Institutionen för organisk kemi (author)
- Åkermark, BjörnStockholms universitet,Institutionen för organisk kemi(Swepub:su)baker (author)
- Hammarström, LeifUppsala universitet,Fysikalisk-kemiska institutionen(Swepub:uu)leifhamm (author)
- Uppsala universitetAcceleratormasspektrometrigruppen (creator_code:org_t)
Related titles
- In:Inorganic Chemistry: American Chemical Society (ACS)44:9, s. 3215-32250020-16691520-510X
Internet link
- http://orbit.dtu.dk/en/publications/a-new-strategy-for-improvement-of-photophysical-properties-in-rutheniumii-polypyridyl-complexes-synthesis-photophysical-and-electrochemical-characterisation-of-six-mononuclear-rutheniumii-bisterpyridine-type-complexes(9bcb9044-bb2d-4a85-ad8d-07e461f20eb6).html
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-14716
- https://doi.org/10.1021/ic048247a
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-95084
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-23637
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