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Saccharified Uranyl Ions: Self‐Assembly of UO(2) (2+) into Trinuclear Anionic Complexes by the Coordination of Glucosamine‐Derived Schiff Bases
The reaction of UO(2)(OAc)(2) ⋅ 2H(2)O with the biologically inspired ligand 2‐salicylidene glucosamine (H(2) L(1)) results in the formation of the anionic trinuclear uranyl complex [(UO(2))(3)(μ(3)‐O)(L(1))(3)](2−) (1 (2−)), which was isolated in good yield as its Cs‐salt, [Cs](2) 1. Recrystallizat...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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John Wiley and Sons Inc.
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8252515/ https://www.ncbi.nlm.nih.gov/pubmed/33871115 http://dx.doi.org/10.1002/chem.202100546 |
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author | Schaper, Gerrit Wenzel, Marco Hennersdorf, Felix Lindoy, Leonard F. Weigand, Jan J. |
author_facet | Schaper, Gerrit Wenzel, Marco Hennersdorf, Felix Lindoy, Leonard F. Weigand, Jan J. |
author_sort | Schaper, Gerrit |
collection | PubMed |
description | The reaction of UO(2)(OAc)(2) ⋅ 2H(2)O with the biologically inspired ligand 2‐salicylidene glucosamine (H(2) L(1)) results in the formation of the anionic trinuclear uranyl complex [(UO(2))(3)(μ(3)‐O)(L(1))(3)](2−) (1 (2−)), which was isolated in good yield as its Cs‐salt, [Cs](2) 1. Recrystallization of [Cs](2) 1 in the presence of 18‐crown‐6 led to formation of a neutral ion pair of type [M(18‐crown‐6)](2) 1, which was also obtained for the alkali metal ions Rb(+) and K(+) (M=Cs, Rb, K). The related ligand, 2‐(2‐hydroxy‐1‐naphthylidene) glucosamine (H(2) L(2)) in a similar procedure with Cs(+) gave the corresponding complex [Cs(18‐crown‐6)](2)[(UO(2))(3)(μ(3)‐O)(L(2))(3) ([Cs(18‐crown‐6)](2) 2). From X‐ray investigations, the [(UO(2))(3)O(L(n))(3)](2−) anion (n=1, 2) in each complex is a discrete trinuclear uranyl species that coordinates to the alkali metal ion via three uranyl oxygen atoms. The coordination behavior of H(2) L(1) and H(2) L(2) towards UO(2) (2+) was investigated by NMR, UV/Vis spectroscopy and mass spectrometry, revealing the in situ formation of the 1 (2−) and 2 (2−)dianions in solution. |
format | Online Article Text |
id | pubmed-8252515 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-82525152021-07-09 Saccharified Uranyl Ions: Self‐Assembly of UO(2) (2+) into Trinuclear Anionic Complexes by the Coordination of Glucosamine‐Derived Schiff Bases Schaper, Gerrit Wenzel, Marco Hennersdorf, Felix Lindoy, Leonard F. Weigand, Jan J. Chemistry Full Papers The reaction of UO(2)(OAc)(2) ⋅ 2H(2)O with the biologically inspired ligand 2‐salicylidene glucosamine (H(2) L(1)) results in the formation of the anionic trinuclear uranyl complex [(UO(2))(3)(μ(3)‐O)(L(1))(3)](2−) (1 (2−)), which was isolated in good yield as its Cs‐salt, [Cs](2) 1. Recrystallization of [Cs](2) 1 in the presence of 18‐crown‐6 led to formation of a neutral ion pair of type [M(18‐crown‐6)](2) 1, which was also obtained for the alkali metal ions Rb(+) and K(+) (M=Cs, Rb, K). The related ligand, 2‐(2‐hydroxy‐1‐naphthylidene) glucosamine (H(2) L(2)) in a similar procedure with Cs(+) gave the corresponding complex [Cs(18‐crown‐6)](2)[(UO(2))(3)(μ(3)‐O)(L(2))(3) ([Cs(18‐crown‐6)](2) 2). From X‐ray investigations, the [(UO(2))(3)O(L(n))(3)](2−) anion (n=1, 2) in each complex is a discrete trinuclear uranyl species that coordinates to the alkali metal ion via three uranyl oxygen atoms. The coordination behavior of H(2) L(1) and H(2) L(2) towards UO(2) (2+) was investigated by NMR, UV/Vis spectroscopy and mass spectrometry, revealing the in situ formation of the 1 (2−) and 2 (2−)dianions in solution. John Wiley and Sons Inc. 2021-05-21 2021-06-10 /pmc/articles/PMC8252515/ /pubmed/33871115 http://dx.doi.org/10.1002/chem.202100546 Text en © 2021 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Full Papers Schaper, Gerrit Wenzel, Marco Hennersdorf, Felix Lindoy, Leonard F. Weigand, Jan J. Saccharified Uranyl Ions: Self‐Assembly of UO(2) (2+) into Trinuclear Anionic Complexes by the Coordination of Glucosamine‐Derived Schiff Bases |
title | Saccharified Uranyl Ions: Self‐Assembly of UO(2)
(2+) into Trinuclear Anionic Complexes by the Coordination of Glucosamine‐Derived Schiff Bases |
title_full | Saccharified Uranyl Ions: Self‐Assembly of UO(2)
(2+) into Trinuclear Anionic Complexes by the Coordination of Glucosamine‐Derived Schiff Bases |
title_fullStr | Saccharified Uranyl Ions: Self‐Assembly of UO(2)
(2+) into Trinuclear Anionic Complexes by the Coordination of Glucosamine‐Derived Schiff Bases |
title_full_unstemmed | Saccharified Uranyl Ions: Self‐Assembly of UO(2)
(2+) into Trinuclear Anionic Complexes by the Coordination of Glucosamine‐Derived Schiff Bases |
title_short | Saccharified Uranyl Ions: Self‐Assembly of UO(2)
(2+) into Trinuclear Anionic Complexes by the Coordination of Glucosamine‐Derived Schiff Bases |
title_sort | saccharified uranyl ions: self‐assembly of uo(2)
(2+) into trinuclear anionic complexes by the coordination of glucosamine‐derived schiff bases |
topic | Full Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8252515/ https://www.ncbi.nlm.nih.gov/pubmed/33871115 http://dx.doi.org/10.1002/chem.202100546 |
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