Multiple host-guest and metal coordination interactions induce supramolecular assembly and structural transition

IF 9.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Chinese Chemical Letters Pub Date : 2024-09-15 DOI:10.1016/j.cclet.2024.110465

Shengyong Liu , Hui Li , Wei Zhang , Yan Zhang , Yan Dong , Wei Tian

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Abstract

Three monomers, namely A2, B2, and GH, were designed and synthesized. By utilizing double host-guest interactions, the monomers A2+B2+GH underwent self-assembly to form a supramolecular linear polymer (SLP) at high concentrations. Long fibers could be pulled from the concentrated SLP solution. Upon the addition of PdCl₂(PhCN)₂ into the SLP solution, a structural transformation occurred from SLP to a supramolecular crosslinked polymer (SCP) through metal coordination interaction. This transformation induced fluorescence quenching, test paper strips for ion detection experiment confirmed that the SLP had good detection ability for Pd²⁺. Furthermore, the SCP underwent a transformation into a gel when the concentration exceeded 145 mmol/L. The SCP gel demonstrated sensitivity to different stimuli, such as K⁺ ions and changes in temperature, accompanied by a reversible transition between sol and gel states. Additionally, rheological analyses indicated that the gel possessed favorable self-healing properties.

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来源期刊

Chinese Chemical Letters 化学-化学综合

CiteScore

14.10

自引率

15.40%

发文量

8969

审稿时长

1.6 months

期刊介绍： Chinese Chemical Letters (CCL) (ISSN 1001-8417) was founded in July 1990. The journal publishes preliminary accounts in the whole field of chemistry, including inorganic chemistry, organic chemistry, analytical chemistry, physical chemistry, polymer chemistry, applied chemistry, etc.Chinese Chemical Letters does not accept articles previously published or scheduled to be published. To verify originality, your article may be checked by the originality detection service CrossCheck.