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Abstrakt
The organic ligand 2,5-piperazinedione-1,4-diaceticacid (H2PDA) was synthesized under hydrothermal conditions starting from the iminodiacetic acid and catalyzed by oxalic acid. The X-ray powder diffraction data indicates that the compound crystallizes in the P21/c space group as reported in the literature. The ligand was also characterized by elemental analysis, magnetic nuclear resonance, infrared spectroscopy and thermogravimetric analysis. Two new coordination networks based on lanthanide ions were obtained with this ligand using hydrothermal reaction. In addition to single-crystal X-ray diffraction, the compounds were characterized by infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy and elemental analysis. Single-crystal XRD showed that the compounds are isostructural, crystallizing in P21/n space group with chemical formula [Ln(PDA)1.5(H2O)](H2O)3 (Ln¼Gd3þ (1) and Eu3þ (2)). The luminescence properties of both compounds were studied. In the compound (1), a broad emission band was observed at 479nm, red shifted by 70nm in comparison of the free ligand.In (2), the typical f–f transition was observed with amaximum peak at 618 nm, related with the redemissionoftheeuropiumions.Computationalmethodswereperformedtosimulatethe crystal structureof (2). The theoretical calculationsoftheintensityparametersareingoodagreement with theexperimentalvalues.
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Autorzy (8)
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Fausthon Fred da Silva
- Universidade Federal de Pernambuco Laboratório de Terras Raras, Departamento de Química Fundamental
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Carlos Alberto Fernandes de Oliveira
- Universidade Federal de Pernambuco Laboratório de Síntese Inorgânica e Cristalografia, Instituto de Química
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Eduardo Henrique Lago Falcao
- Universidade Federal de Pernambuco Laboratório de Terras Raras, Departamento de Química Fundamental
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Claudia Cristina Gatto
- Universidade de Brasília Laboratório de Síntese Inorgânica e Cristalografia, Instituto de Química
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Nivan Bezerra da Costa Jr
- Universidade Federal de Sergipe Pople Computational Chemistry Laboratory, Departamento de Química
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Ricardo Oliveira Freire
- Universidade Federal de Sergipe Pople Computational Chemistry Laboratory, Departamento de Química
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Jarosław Chojnacki prof. dr hab. inż.
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Severino Alves Junior
- Universidade Federal de Pernambuco Laboratório de Terras Raras, Departamento de Química Fundamental
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuł w czasopiśmie wyróżnionym w JCR
- Opublikowano w:
-
JOURNAL OF SOLID STATE CHEMISTRY
nr 207,
strony 132 - 139,
ISSN: 0022-4596 - Język:
- angielski
- Rok wydania:
- 2013
- Opis bibliograficzny:
- Silva F., Oliveira C., Falcao E., Gatto C., Costa Jr N., Freire R., Chojnacki J., Junior S.: Hydrothermal reactions: From the synthesis of ligand to new lanthanide 3D-coordination polymers// JOURNAL OF SOLID STATE CHEMISTRY. -Vol. 207, (2013), s.132-139
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.jssc.2013.09.004
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 135 razy
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