ArticleAngewandte Chemie (International ed. in English)2018
A Long-Lived Halogen-Bonding Anion Triple Helicate Accommodates Rapid Guest Exchange.
Article in Angewandte Chemie (International ed. in English), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 43 citations in OpenAlex.
- Programmable Assembly of Multistranded Helices in Water.Nature communications · 2025Article
- Controlling aromatic helix dimerization in water by tuning charge repulsions.Chemical science · 2023Article
- Steric Control over the Threading of Pyrophosphonates with One or Two Cyanostar Macrocycles during Pseudorotaxane Formation.Chemistry (Weinheim an der Bergstrasse, Germany) · 2023Article
- Orthogonal, modular anion-cation and cation-anion self-assembly using pre-programmed anion binding sites.Chemical science · 2023Article
- Formation of supramolecular channels by reversible unwinding-rewinding of bis(indole) double helix via ion coordination.Nature communications · 2022Article
- Article
- Transmembrane anion transport mediated by halogen bonding and hydrogen bonding triazole anionophores.Chemical science · 2020Article
- Helical Anion Foldamers in Solution.Chemical reviews · 2020Review
- Anion Influence on the Packing of 1,3-Bis(4-Ethynyl-3-Iodopyridinium)-Benzene Halogen Bond Receptors.Crystals · 2019Article
- Construction and interconversion of anion-coordination-based ('aniono') grids and double helicates modulated by counter-cations.Chemical science · 2019Article
- Halogen Bonding Helicates Encompassing Iodonium Cations.Angewandte Chemie (International ed. in English) · 2019Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Anion-templated helical structures are emerging as a dynamic and tractable class of supramolecules that exhibit anion-switchable self-assembly. We present the first kinetic studies of an anion helicate by utilizing halogen-bonding m-arylene-ethynylene oligomers. These ligands formed high-fidelity triple helicates in solution with surprisingly long lifetimes on the order of seconds even at elevated temperatures. We propose an associative ligand-exchange mechanism that proceeded slowly on the same timescale. In contrast, intrachannel anion exchange occurred rapidly within milliseconds or faster as determined by stopped-flow visible spectroscopy. Additionally, the helicate accommodated bromide in solution and the solid state, while the thermodynamic stability of the triplex favored larger halide ions (bromide≈iodide≫chloride). Taken together, we elucidate a new class of kinetically stable helicates. These anion-switchable triplexes maintain their architectures while accommodating fast intrachannel guest exchange.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.