Terbium(III) and dysprosium(III) 8-connected 3D networks containing 2,5-thiophenedicarboxylate anion: Crystal structures and photoluminescence studies
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
01/11/2013
01/11/2013
2012
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Resumo |
Two novel coordination polymers with the formula {[Ln(2)(2,5-tdc)(3)(dmso)(2)].H2O}(n) (Ln = Tb(III) for (1) and Dy(III) for (2)), (2,5-tdc(2-) = 2,5-thiophenedicarboxylate and dmso = dimethylsulfoxide) have been synthesized by the diffusion method and characterized by thermal analysis, vibrational spectroscopy and single crystal X-ray diffraction analysis. Structure analysis reveals that 2,5-tdc(2-) play a versatile role toward different lanthanide ions to form three-dimensional metal-organic frameworks (MOFs) in which the lanthanides ions are heptacoordinated. Photophysical properties were studied using excitation and emission spectra, where the photoluminescence data show the high emission intensity of the characteristic transitions D-5(4 ->) F-7(J) (J= 6, 5, 4 and 3) for (1) and (F9/2 -> HJ)-F-4-H-6 (J = 15/2, 13/2 and 11/2) for (2), indicating that 2,5-tdc(2-) is a good sensitizer. (C) 2012 Elsevier Ltd. All rights reserved. CNPq CNPq CAPES CAPES FAPEMIG FAP-EMIG [CEX-APQ 01565-09] |
Identificador |
POLYHEDRON, OXFORD, v. 38, n. 1, supl. 1, Part 6, pp. 149-156, MAY 11, 2012 0277-5387 http://www.producao.usp.br/handle/BDPI/37216 10.1016/j.poly.2012.02.032 |
Idioma(s) |
eng |
Publicador |
PERGAMON-ELSEVIER SCIENCE LTD OXFORD |
Relação |
POLYHEDRON |
Direitos |
closedAccess Copyright PERGAMON-ELSEVIER SCIENCE LTD |
Palavras-Chave | #COORDINATION POLYMER #2,5-THIOPHENEDICARBOXYLIC ACID #LANTHANIDES #LANTHANIDE-ORGANIC FRAMEWORKS #COORDINATION POLYMER #LUMINESCENT PROPERTIES #MAGNETIC-PROPERTIES #SELF-ORGANIZATION #COMPLEXES #TOPOLOGY #PHOSPHOR #CHEMISTRY, INORGANIC & NUCLEAR #CRYSTALLOGRAPHY |
Tipo |
article original article publishedVersion |