Encapsulation of Halocarbons in a Tetrahedral Anion Cage

Dong Yang; Jie Zhao; Yanxia Zhao; Yibo Lei; Liping Cao; Xiao Juan Yang; Martin Davi; Nader De Sousa Amadeu; Christoph Janiak; Zhibin Zhang; Yao Yu Wang; Biao Wu

doi:10.1002/anie.201502399

Encapsulation of Halocarbons in a Tetrahedral Anion Cage

Dong Yang, Jie Zhao, Yanxia Zhao, Yibo Lei, Liping Cao, Xiao Juan Yang, Martin Davi, Nader De Sousa Amadeu, Christoph Janiak, Zhibin Zhang, Yao Yu Wang, Biao Wu

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

80 Citations (Scopus)

Abstract

Caged supramolecular systems are promising hosts for guest inclusion, separation, and stabilization. Well-studied examples are mainly metal-coordination-based or covalent architectures. An anion-coordination-based cage that is capable of encapsulating halocarbon guests is reported for the first time. This A₄L₄-type (A=anion) tetrahedral cage, [(PO₄)₄L₄]^12-, assembled from a C₃-symmetric tris(bisurea) ligand (L) and phosphate ion (PO₄^3-), readily accommodates a series of quasi-tetrahedral halocarbons, such as the Freon components CFCl₃, CF₂Cl₂, CHFCl₂, and C(CH₃)F₃, and chlorocarbons CH₂Cl₂, CHCl₃, CCl₄, C(CH₃)Cl₃, C(CH₃)₂Cl₂, and C(CH₃)₃Cl. The guest encapsulation in the solid state is confirmed by crystal structures, while the host-guest interactions in solution were demonstrated by NMR techniques.

Original language	English
Pages (from-to)	8658-8661
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	54
Issue number	30
DOIs	https://doi.org/10.1002/anie.201502399
Publication status	Published - 20 Jul 2015
Externally published	Yes

Keywords

Freon
anion coordination
anion-based tetrahedral cages
halocarbons
inclusion compounds

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abstract = "Caged supramolecular systems are promising hosts for guest inclusion, separation, and stabilization. Well-studied examples are mainly metal-coordination-based or covalent architectures. An anion-coordination-based cage that is capable of encapsulating halocarbon guests is reported for the first time. This A4L4-type (A=anion) tetrahedral cage, [(PO4)4L4]12-, assembled from a C3-symmetric tris(bisurea) ligand (L) and phosphate ion (PO43-), readily accommodates a series of quasi-tetrahedral halocarbons, such as the Freon components CFCl3, CF2Cl2, CHFCl2, and C(CH3)F3, and chlorocarbons CH2Cl2, CHCl3, CCl4, C(CH3)Cl3, C(CH3)2Cl2, and C(CH3)3Cl. The guest encapsulation in the solid state is confirmed by crystal structures, while the host-guest interactions in solution were demonstrated by NMR techniques.",

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author = "Dong Yang and Jie Zhao and Yanxia Zhao and Yibo Lei and Liping Cao and Yang, {Xiao Juan} and Martin Davi and {De Sousa Amadeu}, Nader and Christoph Janiak and Zhibin Zhang and Wang, {Yao Yu} and Biao Wu",

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doi = "10.1002/anie.201502399",

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AU - Yang, Dong

AU - Zhao, Jie

AU - Zhao, Yanxia

AU - Lei, Yibo

AU - Cao, Liping

AU - Yang, Xiao Juan

AU - Davi, Martin

AU - De Sousa Amadeu, Nader

AU - Janiak, Christoph

AU - Zhang, Zhibin

AU - Wang, Yao Yu

AU - Wu, Biao

PY - 2015/7/20

Y1 - 2015/7/20

N2 - Caged supramolecular systems are promising hosts for guest inclusion, separation, and stabilization. Well-studied examples are mainly metal-coordination-based or covalent architectures. An anion-coordination-based cage that is capable of encapsulating halocarbon guests is reported for the first time. This A4L4-type (A=anion) tetrahedral cage, [(PO4)4L4]12-, assembled from a C3-symmetric tris(bisurea) ligand (L) and phosphate ion (PO43-), readily accommodates a series of quasi-tetrahedral halocarbons, such as the Freon components CFCl3, CF2Cl2, CHFCl2, and C(CH3)F3, and chlorocarbons CH2Cl2, CHCl3, CCl4, C(CH3)Cl3, C(CH3)2Cl2, and C(CH3)3Cl. The guest encapsulation in the solid state is confirmed by crystal structures, while the host-guest interactions in solution were demonstrated by NMR techniques.

AB - Caged supramolecular systems are promising hosts for guest inclusion, separation, and stabilization. Well-studied examples are mainly metal-coordination-based or covalent architectures. An anion-coordination-based cage that is capable of encapsulating halocarbon guests is reported for the first time. This A4L4-type (A=anion) tetrahedral cage, [(PO4)4L4]12-, assembled from a C3-symmetric tris(bisurea) ligand (L) and phosphate ion (PO43-), readily accommodates a series of quasi-tetrahedral halocarbons, such as the Freon components CFCl3, CF2Cl2, CHFCl2, and C(CH3)F3, and chlorocarbons CH2Cl2, CHCl3, CCl4, C(CH3)Cl3, C(CH3)2Cl2, and C(CH3)3Cl. The guest encapsulation in the solid state is confirmed by crystal structures, while the host-guest interactions in solution were demonstrated by NMR techniques.

KW - Freon

KW - anion coordination

KW - anion-based tetrahedral cages

KW - halocarbons

KW - inclusion compounds

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Encapsulation of Halocarbons in a Tetrahedral Anion Cage

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