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http://hdl.handle.net/10773/5997
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DC Field | Value | Language |
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dc.contributor.author | Soares-Santos, PCR | pt |
dc.contributor.author | Nogueira, HIS | pt |
dc.contributor.author | Felix, V | pt |
dc.contributor.author | Drew, MGB | pt |
dc.contributor.author | Ferreira, RAS | pt |
dc.contributor.author | Carlos, LD | pt |
dc.contributor.author | Trindade, T | pt |
dc.date.accessioned | 2012-02-07T16:56:59Z | - |
dc.date.available | 2012-02-07T16:56:59Z | - |
dc.date.issued | 2003-01 | - |
dc.identifier.issn | 0897-4756 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/5997 | - |
dc.description.abstract | New lanthanide complexes of 3-hydroxypicolinic acid (HpicOH) were prepared: [Ln(H2O)- (picOH)2(í-HpicO)]â3H2O (Ln ) Eu, Tb, Er). The complexes were characterized using photoluminescence, infrared, Raman, and 1H NMR spectroscopy, and elemental analysis. The crystal structure of [Eu(H2O)(picOH)2(í-HpicO)]â3H2O 1 was determined by X-ray diffraction. Compound 1 crystallizes in a monoclinic system with space group P21/c and cell parameters a ) 9.105(13) Å, b ) 18.796(25) Å, and c ) 13.531(17) Å, and â ) 104.86(1) deg. The 3-hydroxypicolinate ligands coordinate through both N,O- or O,O- chelation to the lanthanide ions, as shown by X-ray and spectroscopic results. Photoluminescence measurements were performed for the Eu(III) and Tb(III) complexes; the Eu(III) complex was investigated in more detail. The Eu(III) compound is highly luminescent and acts as a photoactive center in nanocomposite materials whose host matrixes are silica nanoparticles. | pt |
dc.language.iso | eng | pt |
dc.publisher | American Chemical Society | pt |
dc.relation | dx.doi.org/10.1021/cm021188j | pt |
dc.rights | openAccess | por |
dc.title | Novel lanthanide luminescent materials based on complexes of 3-hydroxypicolinic acid and silica nanoparticles | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 100 | pt |
degois.publication.issue | 1 | |
degois.publication.issue | 1 | pt |
degois.publication.lastPage | 108 | pt |
degois.publication.title | Chemistry of Materials | pt |
degois.publication.volume | 15 | pt |
Appears in Collections: | DQ - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Chem. Mater. 2003, 15, 100-108.pdf | 210.72 kB | Adobe PDF | View/Open |
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