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Structural and spectroscopic investigation of new luminescent hybrid materials based on calix[4]arene-tetracarboxylate and Ln 3+ ions (Ln = Gd, Tb or Eu)
Abstract
Lanthanide-calixarene hybrid materials are of particular interest due to the combination of the interesting properties of the ligand cavity-like structure and the luminescent features of lanthanides. The aim of this study was to synthesize and investigate the photophysical properties of Eu3+, Tb3+ and Gd3+ hybrids based on calix[4]arene-tetracarboxylate. The preparation of two structurally different Tb3+ compounds (calix-TA-SC-Tb and calix-TA-Tb) was dictated by the ligand to metal molar ratio and the synthesis time. Analysis of calix-TA-SC-Tb monocrystals revealed the formation of a mononuclear complex of C2 symmetry containing Tb3+ coordinated by four calixarene ionized groups and formate anion encapsulated within the upper cavity. Syntheses of other hybrids failed in producing high-quality crystals and the structures could not be solved. The solid-state luminescent properties of hybrids were evaluated, and the structure/property relationship was investigated. Based on the emission and excitation spectra, the energy diagrams for calix-TA-Eu, calix-TA-Tb and calix-TAGd were proposed.
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Authors (6)
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Rodrigo da_Silva_Viana Dr
- FUPE, Federal Univesidade de Pernambuco, Recife, Brazil Department of Fundamental Chemistry,
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Carlos Alberto Fernandes de Oliveira
- IFPA, Institut of Paraiba, Jao Pessoa, Brazil Department of Fundamental Chemistry,
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Bráulio Barros
- FUPE, Federal Univesidade de Pernambuco, Recife, Brazil Department of Mechanical Engineering
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Severino Alves Junior
- FUPE, Federal Univesidade de Pernambuco, Recife, Brazil Department of Fundamental Chemistry,
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Joanna Kulesza dr inż.
- FUPE, Federal Univesidade de Pernambuco, Recife, Brazil Department of Fundamental Chemistry
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
JOURNAL OF SOLID STATE CHEMISTRY
no. 251,
pages 26 - 32,
ISSN: 0022-4596 - Language:
- English
- Publication year:
- 2017
- Bibliographic description:
- Da_silva_viana R., Oliveira C., Chojnacki J., Barros B., Junior S., Kulesza J.: Structural and spectroscopic investigation of new luminescent hybrid materials based on calix[4]arene-tetracarboxylate and Ln 3+ ions (Ln = Gd, Tb or Eu)// JOURNAL OF SOLID STATE CHEMISTRY. -Vol. 251, (2017), s.26-32
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.jssc.2017.04.002
- Verified by:
- Gdańsk University of Technology
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