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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...

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Autores principales: Schaper, Gerrit, Wenzel, Marco, Hennersdorf, Felix, Lindoy, Leonard F., Weigand, Jan J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
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.
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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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