A Twisted Cucurbit[14]Uril-Based Fluorescent Supramolecular Polymer Mediated by Metal Ion

Luo, Yang; Zhang, Wei; Yang, Mao Xia; Feng, Xian Hao; Redshaw, Carl; Li, Qing; Tao, Zhu; Xiao, Xin

Abstract

Twisted cucubit[14]uril, tQ [14], forms a fluorescent supramolecular polymer with the water-soluble fluorescent tetrapyridinium pyrene compound TPYP via host-guest interactions. Binding is via the alkyl chains and pyridines of TPYP at a molar ratio of 2:1 (tQ [14]:TPYP), and the structure forms a loose and porous supramolecular polymer TPYP-tQ [14]. Upon addition of different metals to a solution of TPYP-tQ [14], it was found that Ni2+ significantly reduced the emission of TPYP-tQ [14] and impacted the morphology of the TPYP-tQ [14], changing it from a loose porous structure to a chain. Due to the special structure of tQ [14], the mechanism of regulation is considered to be a coordination interaction between Ni2+ and the third portal of tQ [14]. This research makes full use of the structural advantages associated with twisted cucurbit[n]urils and provides a new method for controlling the structure of a polymer through coordination-type interactions.

Citation

Luo, Y., Zhang, W., Yang, M. X., Feng, X. H., Redshaw, C., Li, Q., Tao, Z., & Xiao, X. (2022). A Twisted Cucurbit[14]Uril-Based Fluorescent Supramolecular Polymer Mediated by Metal Ion. Macromolecules, 55(5), Article 1642–1646. https://doi.org/10.1021/acs.macromol.2c00075

• Journal Article Type: Article
• Acceptance Date: Feb 6, 2022
• Online Publication Date: Feb 21, 2022
• Publication Date: Mar 8, 2022
• Deposit Date: Feb 24, 2022
• Publicly Available Date: Feb 22, 2023
• Journal: Macromolecules
• Print ISSN: 0024-9297
• Electronic ISSN: 1520-5835
• Publisher: American Chemical Society
• Peer Reviewed: Peer Reviewed
• Volume: 55
• Issue: 5
• Article Number: 1642–1646
• DOI: https://doi.org/10.1021/acs.macromol.2c00075
• Keywords: Twisted curcubit[14]uril; Supramolecular polymer; Coordination interaction, Ni2+
• Public URL: https://hull-repository.worktribe.com/output/3935458