Document Detail


Efficient conversion of arylene precursors into photoluminescent phosphonates for surface modification of metal oxides.
MedLine Citation:
PMID:  23340827     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Three highly fluorescent phosphonates have been prepared in good yields from different arylene bridged 5-iodothiophenes by following an optimized four-step procedure. The compounds have been immobilised on mesoporous zirconia, alumina and titania particles in order to probe their luminescence properties on the surfaces. The organic compounds as well as the obtained hybrid materials have been characterised using liquid phase or MAS NMR spectroscopy, N(2) physisorption measurements, ATR-IR spectroscopy and elemental analysis. The luminescence intensity of the organic molecules was found to be in general much more dependent on the surface used for grafting rather than on the dye loading obtained for different metal oxides powders. The luminescence extinction, which has been detected for all coated TiO(2) samples, is most likely due to the different electronic properties of this semiconducting support compared to the other surfaces. The method described shows how fluorescent tracers can be easily synthesised and applied in surface analytics after exploring the interaction of the corresponding organophosphonates with several ceramic interfaces.
Authors:
Ezgi Keceli; Maximilian Hemgesberg; Sarah Bay; Christian Wilhelm; Yu Sun; Stefan Ernst; Thomas J J Müller; Werner R Thiel
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-23
Journal Detail:
Title:  Dalton transactions (Cambridge, England : 2003)     Volume:  -     ISSN:  1477-9234     ISO Abbreviation:  Dalton Trans     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101176026     Medline TA:  Dalton Trans     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Fachbereich Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße 54, D-67663 Kaiserslautern, Germany. thiel@chemie.uni-kl.de.
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