Source:http://linkedlifedata.com/resource/pubmed/id/19440599
| Subject | Predicate | Object | Context |
|---|---|---|---|
| pubmed-article:19440599 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:19440599 | lifeskim:mentions | umls-concept:C0231441 | lld:lifeskim |
| pubmed-article:19440599 | lifeskim:mentions | umls-concept:C0030012 | lld:lifeskim |
| pubmed-article:19440599 | lifeskim:mentions | umls-concept:C0000194 | lld:lifeskim |
| pubmed-article:19440599 | lifeskim:mentions | umls-concept:C0679622 | lld:lifeskim |
| pubmed-article:19440599 | lifeskim:mentions | umls-concept:C0205314 | lld:lifeskim |
| pubmed-article:19440599 | lifeskim:mentions | umls-concept:C0871161 | lld:lifeskim |
| pubmed-article:19440599 | lifeskim:mentions | umls-concept:C0243072 | lld:lifeskim |
| pubmed-article:19440599 | pubmed:issue | 20 | lld:pubmed |
| pubmed-article:19440599 | pubmed:dateCreated | 2009-5-14 | lld:pubmed |
| pubmed-article:19440599 | pubmed:abstractText | Fulgimides monosubstituted with [M(bpy)(3)](2+) (M = Ru, Os; bpy = 2,2'-bipyridine) chromophore units and with a single bpy group were synthesized and investigated as components of conceivable dinuclear photochromic switches of luminescence. The E-, Z- and closed-ring (C) photoisomer forms of the bpy-bound fulgimide were successfully separated by semi-preparative HPLC. The same procedure failed, however, in the case of the [M(bpy)(3)](2+)-substituted fulgimides. Energy transfer from the excited photochromic unit to the metal-bpy centre competes with the fulgimide cyclization, reducing the photocyclization quantum yields by approximately one order of magnitude compared to the non-complexed fulgimide-bpy ligand (phi(EC) = 0.17, phi(EZ) = 0.071, phi(ZE) = 0.15 at lambda(exc) = 334 nm). The cycloreversion of the fulgimide-bpy ligand is less efficient (phi(CE) = 0.047 at lambda(exc) = 520 nm). The intensity of the (3)MLCT-based luminescence of the metal-bpy chromophore (in MeCN, phi(deaer) = 6.6 x 10(-2) and tau(deaer) = 1.09 micros for Ru; phi(deaer) = 6.7 x 10(-3) and tau(deaer) = 62 ns for Os) is not affected by the fulgimide photoconversion. These results and supporting spectro-electrochemical data reveal that the lowest triplet excited states of the photochromic fulgimide moiety in all its E-, Z- and closed-ring forms lie above the lowest (3)MLCT levels of the attached ruthenium and osmium chromophores. The actual components are therefore unlikely to form a triad acting as functional switch of energy transfer from [Ru(bpy)(3)](2+) to [Os(bpy)(3)](2+) through the photochromic fulgimide bridge. | lld:pubmed |
| pubmed-article:19440599 | pubmed:language | eng | lld:pubmed |
| pubmed-article:19440599 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:19440599 | pubmed:status | PubMed-not-MEDLINE | lld:pubmed |
| pubmed-article:19440599 | pubmed:month | May | lld:pubmed |
| pubmed-article:19440599 | pubmed:issn | 1477-9226 | lld:pubmed |
| pubmed-article:19440599 | pubmed:author | pubmed-author:BelserPeterP | lld:pubmed |
| pubmed-article:19440599 | pubmed:author | pubmed-author:HartlFrantise... | lld:pubmed |
| pubmed-article:19440599 | pubmed:author | pubmed-author:De ColaLuisaL | lld:pubmed |
| pubmed-article:19440599 | pubmed:author | pubmed-author:JukesRon T... | lld:pubmed |
| pubmed-article:19440599 | pubmed:author | pubmed-author:SalluceNunzio... | lld:pubmed |
| pubmed-article:19440599 | pubmed:author | pubmed-author:KühniJoëlJ | lld:pubmed |
| pubmed-article:19440599 | pubmed:issnType | lld:pubmed | |
| pubmed-article:19440599 | pubmed:day | 28 | lld:pubmed |
| pubmed-article:19440599 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:19440599 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:19440599 | pubmed:pagination | 3993-4002 | lld:pubmed |
| pubmed-article:19440599 | pubmed:year | 2009 | lld:pubmed |
| pubmed-article:19440599 | pubmed:articleTitle | Photochemical, photophysical and redox properties of novel fulgimide derivatives with attached 2,2'-bipyridine (bpy) and [M(bpy)(3)](2+) (M = Ru and Os) moieties. | lld:pubmed |
| pubmed-article:19440599 | pubmed:affiliation | Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV, Amsterdam, The Netherlands. | lld:pubmed |
| pubmed-article:19440599 | pubmed:publicationType | Journal Article | lld:pubmed |