A Molecular Logic Gate Constructed by Pillararene-based Host-guest Interactions

XIA Danyu, CHENG Yujie, ZHANG Meiru, WEI Xuehong

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Journal of Shanxi University(Natural Science Edition) ›› 2025, Vol. 48 ›› Issue (3) : 589-595. DOI: 10.13451/j.sxu.ns.2024059
Chemistry

A Molecular Logic Gate Constructed by Pillararene-based Host-guest Interactions

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Abstract

A pH-responsive host-guest recognition system based on the morphine group modified pillar[5]arene host (H1) and the organic amine salt guest molecule G1 was constructed. Under neutral conditions, H1 and G1 formed a [2]pseudorotaxane after host-guest complexation. This host-guest system displayed dual-pH responsive property; under acidic conditions, H1 was protonated and converted into H2, resulting in the disassociation with G1; under basic conditions, G1 was transformed into G2, leading to the disassociation of the host-guest complex. Based on this host-guest system, we have successfully constructed a molecular logic gate system in which different combinations of host-guest complexes, acids and bases acted as input and outputted different information.

Key words

molecular logic gates / host-guest recognition / pillararenes / supramolecular chemistry

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XIA Danyu , CHENG Yujie , ZHANG Meiru , et al. A Molecular Logic Gate Constructed by Pillararene-based Host-guest Interactions. Journal of Shanxi University(Natural Science Edition). 2025, 48(3): 589-595 https://doi.org/10.13451/j.sxu.ns.2024059

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