Light-Triggered High-Affinity Binding of Tetramethylammonium over Potassium Ions by [18]crown-6 in a Tetrahedral Anion Cage

Yue Wang; Boyang Li; Jiajia Zhu; Wenyao Zhang; Bo Zheng; Wei Zhao; Juan Tang; Xiao Juan Yang; Biao Wu

doi:10.1002/anie.202201789

Light-Triggered High-Affinity Binding of Tetramethylammonium over Potassium Ions by [18]crown-6 in a Tetrahedral Anion Cage

Yue Wang, Boyang Li, Jiajia Zhu, Wenyao Zhang, Bo Zheng, Wei Zhao, Juan Tang, Xiao Juan Yang, Biao Wu^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

An azobenzene-functionalized bis-bis(urea) ligand (L^azo) and phosphate anion assemble to give the first photoactive “aniono” constructs, tetrahedron (A₄L₆) and helicate (A₂L₃), which readily undergo interconversion through cis-trans isomerization of the azo group under irradiation/heating. Most strikingly, the tetrahedral cage can accommodate an [18]crown-6 molecule, which can capture two tetramethylammonium (TMA⁺) ions with an unusually high affinity, even capable of replacing K⁺ in [K([18]crown-6)]⁺ to form a {(TMA)₂ (Formula presented.) ([18]crown-6)} (Formula presented.) cage “Russian doll” structure. Thus, the current work may provide a model for the light-driven binding and exchange of the biologically important K⁺ and TMA⁺ ions.

Original language	English
Article number	e202201789
Journal	Angewandte Chemie - International Edition
Volume	61
Issue number	23
DOIs	https://doi.org/10.1002/anie.202201789
Publication status	Published - 7 Jun 2022

Keywords

Anion-Coordination-Driven Assembly (ACDA)
Azobenzene
Crown Ether
Photoswitch
Tetrahedral Cage

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10.1002/anie.202201789

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title = "Light-Triggered High-Affinity Binding of Tetramethylammonium over Potassium Ions by [18]crown-6 in a Tetrahedral Anion Cage",

abstract = "An azobenzene-functionalized bis-bis(urea) ligand (Lazo) and phosphate anion assemble to give the first photoactive “aniono” constructs, tetrahedron (A4L6) and helicate (A2L3), which readily undergo interconversion through cis-trans isomerization of the azo group under irradiation/heating. Most strikingly, the tetrahedral cage can accommodate an [18]crown-6 molecule, which can capture two tetramethylammonium (TMA+) ions with an unusually high affinity, even capable of replacing K+ in [K([18]crown-6)]+ to form a {(TMA)2 (Formula presented.) ([18]crown-6)} (Formula presented.) cage “Russian doll” structure. Thus, the current work may provide a model for the light-driven binding and exchange of the biologically important K+ and TMA+ ions.",

keywords = "Anion-Coordination-Driven Assembly (ACDA), Azobenzene, Crown Ether, Photoswitch, Tetrahedral Cage",

author = "Yue Wang and Boyang Li and Jiajia Zhu and Wenyao Zhang and Bo Zheng and Wei Zhao and Juan Tang and Yang, {Xiao Juan} and Biao Wu",

note = "Publisher Copyright: {\textcopyright} 2022 Wiley-VCH GmbH.",

year = "2022",

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doi = "10.1002/anie.202201789",

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T1 - Light-Triggered High-Affinity Binding of Tetramethylammonium over Potassium Ions by [18]crown-6 in a Tetrahedral Anion Cage

AU - Wang, Yue

AU - Li, Boyang

AU - Zhu, Jiajia

AU - Zhang, Wenyao

AU - Zheng, Bo

AU - Zhao, Wei

AU - Tang, Juan

AU - Yang, Xiao Juan

AU - Wu, Biao

PY - 2022/6/7

Y1 - 2022/6/7

N2 - An azobenzene-functionalized bis-bis(urea) ligand (Lazo) and phosphate anion assemble to give the first photoactive “aniono” constructs, tetrahedron (A4L6) and helicate (A2L3), which readily undergo interconversion through cis-trans isomerization of the azo group under irradiation/heating. Most strikingly, the tetrahedral cage can accommodate an [18]crown-6 molecule, which can capture two tetramethylammonium (TMA+) ions with an unusually high affinity, even capable of replacing K+ in [K([18]crown-6)]+ to form a {(TMA)2 (Formula presented.) ([18]crown-6)} (Formula presented.) cage “Russian doll” structure. Thus, the current work may provide a model for the light-driven binding and exchange of the biologically important K+ and TMA+ ions.

AB - An azobenzene-functionalized bis-bis(urea) ligand (Lazo) and phosphate anion assemble to give the first photoactive “aniono” constructs, tetrahedron (A4L6) and helicate (A2L3), which readily undergo interconversion through cis-trans isomerization of the azo group under irradiation/heating. Most strikingly, the tetrahedral cage can accommodate an [18]crown-6 molecule, which can capture two tetramethylammonium (TMA+) ions with an unusually high affinity, even capable of replacing K+ in [K([18]crown-6)]+ to form a {(TMA)2 (Formula presented.) ([18]crown-6)} (Formula presented.) cage “Russian doll” structure. Thus, the current work may provide a model for the light-driven binding and exchange of the biologically important K+ and TMA+ ions.

KW - Anion-Coordination-Driven Assembly (ACDA)

KW - Azobenzene

KW - Crown Ether

KW - Photoswitch

KW - Tetrahedral Cage

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DO - 10.1002/anie.202201789

M3 - Article

C2 - 35293665

AN - SCOPUS:85127765124

SN - 1433-7851

VL - 61

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 23

M1 - e202201789

ER -

Light-Triggered High-Affinity Binding of Tetramethylammonium over Potassium Ions by [18]crown-6 in a Tetrahedral Anion Cage

Abstract

Keywords

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