Supramolecular assembly of covalently modified Anderson-type polyoxometalates and crown ethers towards pseudo-rotaxane structures
The supramolecular assembly of a series of covalently modified Anderson-type polyoxometalates (POMs) and 18-crown-6 ethers was investigated for the first time. Seven new POM–crown ether complexes were prepared by varying the countercations and the modification mode of the Anderson clusters, and they...
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2025-03-01
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| Series: | Polyoxometalates |
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| Online Access: | https://www.sciopen.com/article/10.26599/POM.2024.9140081 |
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| author | Yi-An Yin Wu-Ji Chen Chun-Yan Liu Meng-Meng Zhang Chang-Gen Lin Haralampos N. Miras Yu-Fei Song |
| author_facet | Yi-An Yin Wu-Ji Chen Chun-Yan Liu Meng-Meng Zhang Chang-Gen Lin Haralampos N. Miras Yu-Fei Song |
| author_sort | Yi-An Yin |
| collection | DOAJ |
| description | The supramolecular assembly of a series of covalently modified Anderson-type polyoxometalates (POMs) and 18-crown-6 ethers was investigated for the first time. Seven new POM–crown ether complexes were prepared by varying the countercations and the modification mode of the Anderson clusters, and they were fully characterized by single-crystal X-ray diffraction, electrospray ionization time-of-flight mass spectrometry (ESI–TOF–MS), 1H nuclear magnetic resonance (NMR), etc. Alkali metal cations within the cavities of the crown ethers served as supercations to bind to the POM hybrids, thereby forming supramolecular assemblies with different architectures and compositions. More interestingly, five of the seven POM–crown ether complexes possessed novel pseudo-rotaxane structures, which were obtained by changing the modification mode of the Anderson clusters from symmetric to asymmetric. These pseudo-rotaxanes have not been reported previously and are considered important intermediates in the construction of POM-based supramolecular architectures with complementary structural and chemical properties. |
| format | Article |
| id | doaj-art-cfec0d329f514c85aafc19e87c83feeb |
| institution | Kabale University |
| issn | 2957-9821 2957-9503 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Polyoxometalates |
| spelling | doaj-art-cfec0d329f514c85aafc19e87c83feeb2025-01-24T08:12:26ZengTsinghua University PressPolyoxometalates2957-98212957-95032025-03-0141914008110.26599/POM.2024.9140081Supramolecular assembly of covalently modified Anderson-type polyoxometalates and crown ethers towards pseudo-rotaxane structuresYi-An Yin0Wu-Ji Chen1Chun-Yan Liu2Meng-Meng Zhang3Chang-Gen Lin4https://orcid.org/0000-0003-4541-4509Haralampos N. Miras5Yu-Fei Song6https://orcid.org/0000-0003-1309-0626State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, ChinaState Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, ChinaState Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, ChinaState Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, ChinaState Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, ChinaSchool of Chemistry, The University of Glasgow, Glasgow G12 8QQ, UKState Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, ChinaThe supramolecular assembly of a series of covalently modified Anderson-type polyoxometalates (POMs) and 18-crown-6 ethers was investigated for the first time. Seven new POM–crown ether complexes were prepared by varying the countercations and the modification mode of the Anderson clusters, and they were fully characterized by single-crystal X-ray diffraction, electrospray ionization time-of-flight mass spectrometry (ESI–TOF–MS), 1H nuclear magnetic resonance (NMR), etc. Alkali metal cations within the cavities of the crown ethers served as supercations to bind to the POM hybrids, thereby forming supramolecular assemblies with different architectures and compositions. More interestingly, five of the seven POM–crown ether complexes possessed novel pseudo-rotaxane structures, which were obtained by changing the modification mode of the Anderson clusters from symmetric to asymmetric. These pseudo-rotaxanes have not been reported previously and are considered important intermediates in the construction of POM-based supramolecular architectures with complementary structural and chemical properties.https://www.sciopen.com/article/10.26599/POM.2024.9140081polyoxometalatesupramolecular assemblyorganic-inorganic hybridcrown etherrotaxane |
| spellingShingle | Yi-An Yin Wu-Ji Chen Chun-Yan Liu Meng-Meng Zhang Chang-Gen Lin Haralampos N. Miras Yu-Fei Song Supramolecular assembly of covalently modified Anderson-type polyoxometalates and crown ethers towards pseudo-rotaxane structures Polyoxometalates polyoxometalate supramolecular assembly organic-inorganic hybrid crown ether rotaxane |
| title | Supramolecular assembly of covalently modified Anderson-type polyoxometalates and crown ethers towards pseudo-rotaxane structures |
| title_full | Supramolecular assembly of covalently modified Anderson-type polyoxometalates and crown ethers towards pseudo-rotaxane structures |
| title_fullStr | Supramolecular assembly of covalently modified Anderson-type polyoxometalates and crown ethers towards pseudo-rotaxane structures |
| title_full_unstemmed | Supramolecular assembly of covalently modified Anderson-type polyoxometalates and crown ethers towards pseudo-rotaxane structures |
| title_short | Supramolecular assembly of covalently modified Anderson-type polyoxometalates and crown ethers towards pseudo-rotaxane structures |
| title_sort | supramolecular assembly of covalently modified anderson type polyoxometalates and crown ethers towards pseudo rotaxane structures |
| topic | polyoxometalate supramolecular assembly organic-inorganic hybrid crown ether rotaxane |
| url | https://www.sciopen.com/article/10.26599/POM.2024.9140081 |
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