Synthesis and characterization of four new lanthanide complexes coordinate with β-diketone ligands and 1,10-phenanthroline or 2,2-dipyridine
DOI:
https://doi.org/10.33448/rsd-v9i11.10207Keywords:
Synthesis; Lanthanide; Erbium; Neodymium.Abstract
In this work the complexes Ln(β-dik)3L (where Ln= Nd+3 e Er+3, β-dik= 4,4,4-trifluoro-1-phenyl-1,3-butanedione (Btfa) and L= 1,10-Phenanthroline (Phen) or 2,2’-Bipyridyl (Bipy)), were synthesized from the direct reaction of LnCl3 with β-diketone and the ligands. The purpose was to create new lanthanide complexes with perspectives of use in markers. After the syntheses, the complexes were characterized by Solubility Test, Scanning Electron Microscopy (SEM) and the thermal properties of compounds were studied using Thermogravimetry Analisys (TGA), Differential Scanning Calorimetry (DSC) and Determination of Melting/Decomposition Intervals. Based on the verified properties, the solubility test found that the complexes are not soluble in chloroform and water. The microscope images showed an excellent crystallization of the complexes. The complexes are stable up to 120°C, after this temperature they show a peak in the DSC referring to the fusion and the beginning of decomposition. The values of activation energy suggests the following decreasing order of stability: Er(Btfa)3Phen>Nd(Btfa)3Phen>Er(Btfa)3Bipy>Nd(Btfa)3Bipy.
References
Assunção, F. C. R., Almeida, M. F. L., Arraes, T. M., Lins, F. A. F., Santos, R. L. C., Soares, P. S. M., Nascimento, M., Masson, I. O. C., Silva, C. F. C., Moraes, C. A. C., Pitta, F. M., Nomeline, R., Guerra, E. A., Lima, D. A., Aguiar, E. F. S., Zotin, F. M. Z., Landgraf, F. J., Appel, L. G., Cremona, M., Wendhausen, P. A. P. (2013). Usos e Aplicações de Terras Raras No Brasil: 2012-2030.
Lehn, J. M. (1990). Perspectives in Supramolecular Chemistry—From Molecular Recognition towards Molecular Information Processing and Self-Organization. Angewandte Chemie International Edition in English, 29(11), 1304–1319.
Sabbatini, N., Casnati, A., Fischer, C., Girardini, R., Guardigli, M., Manet, I., Sarti, G., Ungaro, R. (1996). Luminescence of Eu3+ and Tb3+ Complexes of New Macrobicyclic Ligands Derived from P-Tert-Butylcalix[4]Arene. Inorganica Chimica Acta, 252(1–2), 19–24.
Werts, M. H. V., Hofstraat, J. W., Geurts, F. A. J., Verhoeven, J. W. (1997). Fluorescein and Eosin as Sensitizing Chromophores in Near-Infrared Luminescent Ytterbium(III), Neodymium(III) and Erbium(III) Chelates. Chemical Physics Letters, 276(3–4), 196–201.
Momani, W. M. A., Taha, Z. A., Ajlouni, A. M., Shaqra, Q. M. A., Zouby, M. A. (2013). A Study of in Vitro Antibacterial Activity of Lanthanides Complexes with a Tetradentate Schiff Base Ligand.” Asian Pacific Journal of Tropical Biomedicine, 3(5), 367–70.
Ji, T., Liu, Z., Wang, G., Guo, X., Khan, S. A., Lai, C., Chen, H., Huang, S., Xia, S., Chen, B., Jia, H., Chen, Y., Zhou, Q. (2020). Detection of COVID-19: A Review of the Current Literature and Future Perspectives. Biosensors and Bioelectronics, 166(March),112455.
Bouras, K., Rehspringer, J. L., Schmerber, G., Rinnert, H., Colis, S., Ferblantier, G., Balestrieri, M., Ihiawakrim, D., Dinia, A., Slaoui, A. (2014) Optical and structural properties of Nd doped SnO2 powder fabricated by the sol–gel method. Journal of Materials Chemistry C, 2, 8235–8243.
Kajihara, K. (2013). Recent advances in sol–gel synthesis of monolithic silica and silicabased glass. Journal of Asian Ceramic Societies, 1, 121-133.
Rai, S., Fanai, A. L. (2016). Effect ofannealing and dopants concentration on the optical
properties of Nd3+:Al3+ co-doped sol–gel silica glass. Journal of Luminescence, 170,
–329.
Lukowiak, A., Chiappini, A., Chiasera, A., Ristic, D., Vasilchenko, I., Armellini, C., Carpentiero, A., Varas, S., Speranza, G., Taccheo, S., Pelli, S., Battisha, I. K., Righini, G. C., Strek, W., Ferrari, M. (2015). Sol–gel-derived photonic structures handling erbium íons luminescence. Optical and Quantum Electronics, 47, 117–124.
Silva, H. C., Morais, C. R. S., Morais, S. A., Lira, B. F. (2012). Synthesis, characterization, and thermal properties of an europium (III) nanocomplex. Materials Science Forum, 727–728, 1913–1918.
Frey, S. T., Gong, M. L., Horrocks, W. D. (1994). Synergistic Coordination in Ternary Complexes of Eu3+ with Aromatic β-Diketone Ligands and 1,10-Phenanthroline. Inorganic Chemistry, 33, 3229–3234.
Morais, C. R. S., Gameiro, C. G., Santa-Cruz, P. A., Alves Jr, S., Soledade, L. E. B., Souza, A. G. (2007). Thermal decomposition of lanthanide(III) complexes with 4,4,4-trifluoro-1-phenyl-1,3-butanedione. Journal of Thermal Analisys and Calorimetry, 87, 887–891.
do Nascimento, R. S. T. R., Morais, C. R. S., Lira, H. L., Morais, S. A., de Athayde Filho, P. F., Lucena, L. F. L. (2010). Synthesis and characterization of nanocomplexes of Eu(III) and Er(III) coordinate with 2(4-clorophenil)-3-phenyl-1,3,4-thiadiazoleo-5-tiolate mesoionic. Journal of Alloys and Compounds,495, 603–605.
Lehn J. (1990) Perspectives in Supramolecular Chemistry-From Molecular Recognition towards Molecular Information Processing and Self-organization. Angewandte Chemie International, 29, 1304–1319.
Boyd, J. W., Cobb, G. P., Southard, G. E., Murray, G. M. (2004) Development of molecularly imprinted polymer sensors for chemical warfare agents. Johns Hopkins APL Tech Dig, 25, 44–49.
Shriver, D. F., Atkins, P. W. (2008). Química Inorgânica, (4a ed.). Ed São Paulo: McGraw-Hill.
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