Síntese e caracterização de sabões metálicos de lantanídios (III)
The present study describes synthesis and parcial characterization of Eu3+, Nd3+, Dy3+, Tb3+ and Yb3+ behenate complexes. The compounds were analyzed using IR-Spectroscopy, TG-DTG, DSC, elemental analysis, XRD, luminescence and SEM. The results show the purity of the compounds. The XRD analysis and...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual Paulista
2018-04-01
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| Series: | Eclética Química |
| Online Access: | https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/68 |
| _version_ | 1819058062406713344 |
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| author | Filipe Boccato Payolla Sidney José Lima Ribeiro Antonio Carlos Massabni |
| author_facet | Filipe Boccato Payolla Sidney José Lima Ribeiro Antonio Carlos Massabni |
| author_sort | Filipe Boccato Payolla |
| collection | DOAJ |
| description | The present study describes synthesis and parcial characterization of Eu3+, Nd3+, Dy3+, Tb3+ and Yb3+ behenate complexes. The compounds were analyzed using IR-Spectroscopy, TG-DTG, DSC, elemental analysis, XRD, luminescence and SEM. The results show the purity of the compounds. The XRD analysis and the SEM images show the high cristalinity of the complexes. TG-DTG and DSC analyses do not show a liquid crystal behavior, as occurs with other lanthanide metallic soaps. The mass loses until 1000° C show that the compounds lose ligand fragments at specific temperatures. XRD of the residues are compatible with the respective lanthanide oxides. The luminescence analysis shows that the Eu3+, Nd3+ and Tb3+ complexes presents appreciable emission. The Judd-Ofelt parameters obtained are compatible with the values found in the literature. It was not possible to obtain the complexes in a glass-form because it is difficult to prevent the crystallization of the complexes even using liquid nitrogen. The XDR data indicate that one of the complexes axis has 52 Å of length, agreeing with a structure containing behenate-lanthanide ion-behenate. The structures of the complexes were not fully elucidated and more analyses are necessary. The complexes presented a molar ratio of 3:1 (L:M) and were formulated as Bh3Eu, Bh3Nd, Bh3Dy, Bh3Tb e Bh3Yb (Bh = behenate anion). |
| first_indexed | 2024-12-21T13:49:14Z |
| format | Article |
| id | doaj.art-737d05d6fbdc4811985de99f6986d901 |
| institution | Directory Open Access Journal |
| issn | 1678-4618 |
| language | English |
| last_indexed | 2024-12-21T13:49:14Z |
| publishDate | 2018-04-01 |
| publisher | Universidade Estadual Paulista |
| record_format | Article |
| series | Eclética Química |
| spelling | doaj.art-737d05d6fbdc4811985de99f6986d9012022-12-21T19:01:46ZengUniversidade Estadual PaulistaEclética Química1678-46182018-04-0140115516510.26850/1678-4618eqj.v40.1.2015.p155-16568Síntese e caracterização de sabões metálicos de lantanídios (III)Filipe Boccato Payolla0Sidney José Lima Ribeiro1Antonio Carlos Massabni2Instituto de Química, UNESP – Araraquara/SPInstituto de Química, UNESP – Araraquara/SPCentro Universitário de Araraquara, UNIARA - Araraquara/SPThe present study describes synthesis and parcial characterization of Eu3+, Nd3+, Dy3+, Tb3+ and Yb3+ behenate complexes. The compounds were analyzed using IR-Spectroscopy, TG-DTG, DSC, elemental analysis, XRD, luminescence and SEM. The results show the purity of the compounds. The XRD analysis and the SEM images show the high cristalinity of the complexes. TG-DTG and DSC analyses do not show a liquid crystal behavior, as occurs with other lanthanide metallic soaps. The mass loses until 1000° C show that the compounds lose ligand fragments at specific temperatures. XRD of the residues are compatible with the respective lanthanide oxides. The luminescence analysis shows that the Eu3+, Nd3+ and Tb3+ complexes presents appreciable emission. The Judd-Ofelt parameters obtained are compatible with the values found in the literature. It was not possible to obtain the complexes in a glass-form because it is difficult to prevent the crystallization of the complexes even using liquid nitrogen. The XDR data indicate that one of the complexes axis has 52 Å of length, agreeing with a structure containing behenate-lanthanide ion-behenate. The structures of the complexes were not fully elucidated and more analyses are necessary. The complexes presented a molar ratio of 3:1 (L:M) and were formulated as Bh3Eu, Bh3Nd, Bh3Dy, Bh3Tb e Bh3Yb (Bh = behenate anion).https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/68 |
| spellingShingle | Filipe Boccato Payolla Sidney José Lima Ribeiro Antonio Carlos Massabni Síntese e caracterização de sabões metálicos de lantanídios (III) Eclética Química |
| title | Síntese e caracterização de sabões metálicos de lantanídios (III) |
| title_full | Síntese e caracterização de sabões metálicos de lantanídios (III) |
| title_fullStr | Síntese e caracterização de sabões metálicos de lantanídios (III) |
| title_full_unstemmed | Síntese e caracterização de sabões metálicos de lantanídios (III) |
| title_short | Síntese e caracterização de sabões metálicos de lantanídios (III) |
| title_sort | sintese e caracterizacao de saboes metalicos de lantanidios iii |
| url | https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/68 |
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