Cargando…
New palladium–oxazoline complexes: Synthesis and evaluation of the optical properties and the catalytic power during the oxidation of textile dyes
The present paper describes the synthesis of new palladium–oxazoline complexes in one step with good to high yields (68–95%). The oxazolines were prepared from enantiomerically pure α-aminoalcohols. The structures of the synthesized palladium complexes were confirmed by NMR, FTIR, TOFMS, UV–visible...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Beilstein-Institut
2015
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4578361/ https://www.ncbi.nlm.nih.gov/pubmed/26425176 http://dx.doi.org/10.3762/bjoc.11.132 |
_version_ | 1782391103129911296 |
---|---|
author | Hassani, Rym Jabli, Mahjoub Kacem, Yakdhane Marrot, Jérôme Prim, Damien Ben Hassine, Béchir |
author_facet | Hassani, Rym Jabli, Mahjoub Kacem, Yakdhane Marrot, Jérôme Prim, Damien Ben Hassine, Béchir |
author_sort | Hassani, Rym |
collection | PubMed |
description | The present paper describes the synthesis of new palladium–oxazoline complexes in one step with good to high yields (68–95%). The oxazolines were prepared from enantiomerically pure α-aminoalcohols. The structures of the synthesized palladium complexes were confirmed by NMR, FTIR, TOFMS, UV–visible spectroscopic analysis and X–ray diffraction. The optical properties of the complexes were evaluated by the determination of the gap energy values (E(g)) ranging between 2.34 and 3.21 eV. Their catalytic activities were tested for the degradation of Eriochrome Blue Black B (a model of azo dyes) in the presence of an ecological oxidant (H(2)O(2)). The efficiency of the decolorization has been confirmed via UV–visible spectroscopic analysis and the factors affecting the degradation phenomenon have been studied. The removal of the Eriochrome reached high yields. We have found that the complex 9 promoted 84% of color elimination within 5 min (C(0) = 30 mg/L, T = 22 °C, pH 7, H(2)O(2) = 0.5 mL) and the energetic parameters have been also determined. |
format | Online Article Text |
id | pubmed-4578361 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Beilstein-Institut |
record_format | MEDLINE/PubMed |
spelling | pubmed-45783612015-09-30 New palladium–oxazoline complexes: Synthesis and evaluation of the optical properties and the catalytic power during the oxidation of textile dyes Hassani, Rym Jabli, Mahjoub Kacem, Yakdhane Marrot, Jérôme Prim, Damien Ben Hassine, Béchir Beilstein J Org Chem Full Research Paper The present paper describes the synthesis of new palladium–oxazoline complexes in one step with good to high yields (68–95%). The oxazolines were prepared from enantiomerically pure α-aminoalcohols. The structures of the synthesized palladium complexes were confirmed by NMR, FTIR, TOFMS, UV–visible spectroscopic analysis and X–ray diffraction. The optical properties of the complexes were evaluated by the determination of the gap energy values (E(g)) ranging between 2.34 and 3.21 eV. Their catalytic activities were tested for the degradation of Eriochrome Blue Black B (a model of azo dyes) in the presence of an ecological oxidant (H(2)O(2)). The efficiency of the decolorization has been confirmed via UV–visible spectroscopic analysis and the factors affecting the degradation phenomenon have been studied. The removal of the Eriochrome reached high yields. We have found that the complex 9 promoted 84% of color elimination within 5 min (C(0) = 30 mg/L, T = 22 °C, pH 7, H(2)O(2) = 0.5 mL) and the energetic parameters have been also determined. Beilstein-Institut 2015-07-15 /pmc/articles/PMC4578361/ /pubmed/26425176 http://dx.doi.org/10.3762/bjoc.11.132 Text en Copyright © 2015, Hassani et al. https://creativecommons.org/licenses/by/2.0https://www.beilstein-journals.org/bjoc/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Organic Chemistry terms and conditions: (https://www.beilstein-journals.org/bjoc/terms) |
spellingShingle | Full Research Paper Hassani, Rym Jabli, Mahjoub Kacem, Yakdhane Marrot, Jérôme Prim, Damien Ben Hassine, Béchir New palladium–oxazoline complexes: Synthesis and evaluation of the optical properties and the catalytic power during the oxidation of textile dyes |
title | New palladium–oxazoline complexes: Synthesis and evaluation of the optical properties and the catalytic power during the oxidation of textile dyes |
title_full | New palladium–oxazoline complexes: Synthesis and evaluation of the optical properties and the catalytic power during the oxidation of textile dyes |
title_fullStr | New palladium–oxazoline complexes: Synthesis and evaluation of the optical properties and the catalytic power during the oxidation of textile dyes |
title_full_unstemmed | New palladium–oxazoline complexes: Synthesis and evaluation of the optical properties and the catalytic power during the oxidation of textile dyes |
title_short | New palladium–oxazoline complexes: Synthesis and evaluation of the optical properties and the catalytic power during the oxidation of textile dyes |
title_sort | new palladium–oxazoline complexes: synthesis and evaluation of the optical properties and the catalytic power during the oxidation of textile dyes |
topic | Full Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4578361/ https://www.ncbi.nlm.nih.gov/pubmed/26425176 http://dx.doi.org/10.3762/bjoc.11.132 |
work_keys_str_mv | AT hassanirym newpalladiumoxazolinecomplexessynthesisandevaluationoftheopticalpropertiesandthecatalyticpowerduringtheoxidationoftextiledyes AT jablimahjoub newpalladiumoxazolinecomplexessynthesisandevaluationoftheopticalpropertiesandthecatalyticpowerduringtheoxidationoftextiledyes AT kacemyakdhane newpalladiumoxazolinecomplexessynthesisandevaluationoftheopticalpropertiesandthecatalyticpowerduringtheoxidationoftextiledyes AT marrotjerome newpalladiumoxazolinecomplexessynthesisandevaluationoftheopticalpropertiesandthecatalyticpowerduringtheoxidationoftextiledyes AT primdamien newpalladiumoxazolinecomplexessynthesisandevaluationoftheopticalpropertiesandthecatalyticpowerduringtheoxidationoftextiledyes AT benhassinebechir newpalladiumoxazolinecomplexessynthesisandevaluationoftheopticalpropertiesandthecatalyticpowerduringtheoxidationoftextiledyes |