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Title: Size-control in the synthesis of oxo-bridged phosphazane macrocycles via a modular addition approach
Authors: Shi, Xiaoyan
León, Felix
Ong, How Chee
Ganguly, Rakesh
Díaz, Jesús
García, Felipe
Keywords: Science::Chemistry
Issue Date: 2021
Source: Shi, X., León, F., Ong, H. C., Ganguly, R., Díaz, J. & García, F. (2021). Size-control in the synthesis of oxo-bridged phosphazane macrocycles via a modular addition approach. Communications Chemistry, 4(1), 21-.
Project: A1783c0003
Journal: Communications Chemistry
Abstract: Inorganic macrocycles remain largely underdeveloped compared with their organic counterparts due to the challenges involved in their synthesis. Among them, cyclodiphosphazane macrocycles have shown to be promising candidates for supramolecular chemistry applications due to their ability to encapsulate small molecules or ions within their cavities. However, further developments have been handicapped by the lack of synthetic routes to high-order cyclodiphosphazane macrocycles. Moreover, current approaches allow little control over the size of the macrocycles formed. Here we report the synthesis of high-order oxygen-bridged phosphazane macrocycles via a “3 + n cyclisation” (n = 1 and 3). Using this method, an all-PIII high-order hexameric cyclodiphosphazane macrocycle was isolated, displaying a larger macrocyclic cavity than comparable organic crown-ethers. Our approach demonstrates that increasing building block complexity enables precise control over macrocycle size, which will not only generate future developments in both the phosphazane and main group chemistry but also in the fields of supramolecular chemistry.
ISSN: 2399-3650
DOI: 10.1038/s42004-021-00455-9
Rights: © 2021 The Author(s). s This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit licenses/by/4.0/.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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