The Structure and Luminescent Properties of TlZn(PO3)3
Identifieur interne : 000295 ( France/Analysis ); précédent : 000294; suivant : 000296The Structure and Luminescent Properties of TlZn(PO3)3
Auteurs : A. El Abiad [Maroc] ; B. Es-Sakhi [Maroc] ; M. Mesnaoui [Maroc] ; M. Maazaz [Maroc] ; I. Belharouak [France] ; P. Gravereau [France] ; C. Parent [France] ; G. Wallez [France] ; G. Le Flem [France]Source :
- Journal of Solid State Chemistry [ 0022-4596 ] ; 2000.
English descriptors
Abstract
The crystal structure and the luminescent properties of TlZn(PO3)3 are studied with respect to Tl+ stereochemistry. In this polyphosphate the Tl+ ions are located in tunnels created by the zinc polyphosphate network [Zn(PO3)3]. Actually the thallium atoms are found in a disymmetric configuration and bond calculation allows the determination of the coordination number by oxygen: 6. Nevertheless a large Tl–O distance induces a low stereochemical activity of the 6s2 lone pair. The luminescent properties are analyzed in the context of Fukuda's model. Thermal variations of excitation and emission spectra can be explained by the small influence of the electron–lattice interaction in agreement with the thallium environment.
Url:
DOI: 10.1006/jssc.2000.8898
Affiliations:
- France, Maroc
- Aquitaine, Marrakech-Tensift-Al Haouz, Nouvelle-Aquitaine, Île-de-France
- Marrakech, Paris cédex 05, Pessac
- Université Pierre-et-Marie-Curie
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ISTEX:4EBF50C7241036975C91D6909702D32870B0483DLe document en format XML
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In this polyphosphate the Tl+ ions are located in tunnels created by the zinc polyphosphate network [Zn(PO3)3]. Actually the thallium atoms are found in a disymmetric configuration and bond calculation allows the determination of the coordination number by oxygen: 6. Nevertheless a large Tl–O distance induces a low stereochemical activity of the 6s2 lone pair. The luminescent properties are analyzed in the context of Fukuda's model. Thermal variations of excitation and emission spectra can be explained by the small influence of the electron–lattice interaction in agreement with the thallium environment.</div></front></TEI><affiliations><list><country><li>France</li><li>Maroc</li></country><region><li>Aquitaine</li><li>Marrakech-Tensift-Al Haouz</li><li>Nouvelle-Aquitaine</li><li>Île-de-France</li></region><settlement><li>Marrakech</li><li>Paris cédex 05</li><li>Pessac</li></settlement><orgName><li>Université Pierre-et-Marie-Curie</li></orgName></list><tree><country name="Maroc"><region name="Marrakech-Tensift-Al Haouz"><name sortKey="El Abiad, A" sort="El Abiad, A" uniqKey="El Abiad A" first="A." last="El Abiad">A. El Abiad</name></region><name sortKey="Es Sakhi, B" sort="Es Sakhi, B" uniqKey="Es Sakhi B" first="B." last="Es-Sakhi">B. Es-Sakhi</name><name sortKey="Maazaz, M" sort="Maazaz, M" uniqKey="Maazaz M" first="M." last="Maazaz">M. Maazaz</name><name sortKey="Mesnaoui, M" sort="Mesnaoui, M" uniqKey="Mesnaoui M" first="M." last="Mesnaoui">M. Mesnaoui</name></country><country name="France"><region name="Nouvelle-Aquitaine"><name sortKey="Belharouak, I" sort="Belharouak, I" uniqKey="Belharouak I" first="I." last="Belharouak">I. Belharouak</name></region><name sortKey="Flem, G Le" sort="Flem, G Le" uniqKey="Flem G" first="G. Le" last="Flem">G. Le Flem</name><name sortKey="Gravereau, P" sort="Gravereau, P" uniqKey="Gravereau P" first="P." last="Gravereau">P. Gravereau</name><name sortKey="Parent, C" sort="Parent, C" uniqKey="Parent C" first="C." last="Parent">C. Parent</name><name sortKey="Wallez, G" sort="Wallez, G" uniqKey="Wallez G" first="G." last="Wallez">G. Wallez</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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