Assembly of an A 6 L 6 Anion Trigonal Antiprism and Binding of Glucopyranosides and Polyethylene Glycols (PEGs)

Anion-coordination-driven assembly (ACDA) has proven to be a very effective strategy for the construction of polyhedral structures. Here we demonstrate that variation of the "angle" of the backbone of C -symmetric tris-bis(urea) ligands, from triphenylamine to triphenylphosphine oxide, res...

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Published inAngewandte Chemie International Edition Vol. 62; no. 20; p. e202301300
Main Authors Li, Boyang, Wei, Tianfu, Zhao, Xiaotong, Wang, Yue, Xu, Lizheng, Yang, Xiao-Juan, Wu, Biao
Format Journal Article
LanguageEnglish
Published Germany 08.05.2023
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Abstract Anion-coordination-driven assembly (ACDA) has proven to be a very effective strategy for the construction of polyhedral structures. Here we demonstrate that variation of the "angle" of the backbone of C -symmetric tris-bis(urea) ligands, from triphenylamine to triphenylphosphine oxide, results in the change of the final construct from an A L tetrahedron to a higher-nuclearity, A L trigonal antiprism (A=anion, herein PO ; L=ligand). Most interestingly, this assembly features a huge hollow internal space that is divided into three compartments: one central cavity and two large outer pockets. This multi-cavity character enables the binding of different guests, namely monosaccharides or polyethylene glycol molecules (PEG600, PEG1000 and PEG2000), respectively. The results prove that anion coordination by multiple hydrogen bonds may provide both sufficient strength and flexibility, thus making possible the formation of complicated structures with adaptive guest binding ability.
AbstractList Anion-coordination-driven assembly (ACDA) has proven to be a very effective strategy for the construction of polyhedral structures. Here we demonstrate that variation of the "angle" of the backbone of C -symmetric tris-bis(urea) ligands, from triphenylamine to triphenylphosphine oxide, results in the change of the final construct from an A L tetrahedron to a higher-nuclearity, A L trigonal antiprism (A=anion, herein PO ; L=ligand). Most interestingly, this assembly features a huge hollow internal space that is divided into three compartments: one central cavity and two large outer pockets. This multi-cavity character enables the binding of different guests, namely monosaccharides or polyethylene glycol molecules (PEG600, PEG1000 and PEG2000), respectively. The results prove that anion coordination by multiple hydrogen bonds may provide both sufficient strength and flexibility, thus making possible the formation of complicated structures with adaptive guest binding ability.
Abstract Anion‐coordination‐driven assembly (ACDA) has proven to be a very effective strategy for the construction of polyhedral structures. Here we demonstrate that variation of the “angle” of the backbone of C 3 ‐symmetric tris‐bis(urea) ligands, from triphenylamine to triphenylphosphine oxide, results in the change of the final construct from an A 4 L 4 tetrahedron to a higher‐nuclearity, A 6 L 6 trigonal antiprism (A=anion, herein PO 4 3− ; L=ligand). Most interestingly, this assembly features a huge hollow internal space that is divided into three compartments: one central cavity and two large outer pockets. This multi‐cavity character enables the binding of different guests, namely monosaccharides or polyethylene glycol molecules (PEG600, PEG1000 and PEG2000), respectively. The results prove that anion coordination by multiple hydrogen bonds may provide both sufficient strength and flexibility, thus making possible the formation of complicated structures with adaptive guest binding ability.
Author Wu, Biao
Li, Boyang
Wang, Yue
Xu, Lizheng
Wei, Tianfu
Zhao, Xiaotong
Yang, Xiao-Juan
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CitedBy_id crossref_primary_10_1002_ange_202400989
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crossref_primary_10_1021_jacs_4c01747
crossref_primary_10_1016_j_inoche_2023_111626
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Issue 20
Keywords Anion-Coordination-Driven Assembly (ACDA)
Host-Guest Chemistry
Polyethylene Glycols
Glucopyranosides
Trigonal Antiprisms
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Snippet Anion-coordination-driven assembly (ACDA) has proven to be a very effective strategy for the construction of polyhedral structures. Here we demonstrate that...
Abstract Anion‐coordination‐driven assembly (ACDA) has proven to be a very effective strategy for the construction of polyhedral structures. Here we...
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Title Assembly of an A 6 L 6 Anion Trigonal Antiprism and Binding of Glucopyranosides and Polyethylene Glycols (PEGs)
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