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Synthesis and characterization of an immobilizable photochemical molecular device for H-2-generation
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2015 (English)In: Dalton Transactions, ISSN 1477-9226, E-ISSN 1477-9234, Vol. 44, no 12, 5577-5586 p.Article in journal (Refereed) Published
Abstract [en]

With [Ru-II(bpyMeP)(2)tpphzPtCl(2)](2+) (4) a molecular photocatalyst has been synthesized for visible-light-driven H-2-evolution. It contains the ligand bpyMeP (4,4'-bis(diethyl-(methylene)-phosphonate)-2,2'-bipyridine) with phosphate ester groups as precursors for the highly potent phosphonate anchoring groups, which can be utilized for immobilization of the catalyst on metal-oxide semiconductor surfaces. The synthesis was optimized with regard to high yields, bpyMeP was fully characterized and a solid-state structure could be obtained. Photophysical studies showed that the photophysical properties and the localization of the excited states are not altered compared to similar Ru-complexes without anchoring group precursors. (4) was even more active in homogenous catalysis experiments than [RuII(tbbpy)(2)tpphzPtCl(2)](2+) (6) with tbbpy (4,4'-bis(tbutyl)-2,2'-bipyridine) as peripheral ligands. After hydrolysis (4) was successfully immobilized on NiO, suggesting that an application in photoelectrosynthesis cells is feasible.

Place, publisher, year, edition, pages
2015. Vol. 44, no 12, 5577-5586 p.
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Chemical Sciences
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URN: urn:nbn:se:uu:diva-252047DOI: 10.1039/c4dt03730hISI: 000351439200035PubMedID: 25698297OAI: oai:DiVA.org:uu-252047DiVA: diva2:808771
Available from: 2015-04-29 Created: 2015-04-28 Last updated: 2017-12-04Bibliographically approved

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Park, Byung-Wook

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