ArticleTetrahedron letters2010
Cooperative NH⋯O and CH⋯O interactions for sulfate encapsulation in a thiophene-based macrocycle.
Article in Tetrahedron letters, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
7 citing papers in PubMed.
- Potential toxic effects linked to taurine interactions with alkanolamines and diisopropylamine.Discover water · 2024Article
- Solution and structural binding studies of phosphate with thiophene-based azamacrocycles.Inorganic chemistry communications · 2016Article
- Experimental and Theoretical Aspects of Anion Complexes with a Thiophene-Based Cryptand.Comments on modern chemistry. Part A, Comments on inorganic chemistry : a journal of critical discussion of the current literature · 2016Article
- Encapsulation and selectivity of sulfate with a furan-based hexaazamacrocyclic receptor in water.Organic & biomolecular chemistry · 2014Article
- Seven-coordinate anion complex with a tren-based urea: binding discrepancy of hydrogen sulfate in solid and solution states.Organic & biomolecular chemistry · 2011Article
- Fluorescent detection of phosphate anion by a highly selective chemosensor in water.Tetrahedron letters · 2010Article
- Encapsulation and selective recognition of sulfate anion in an azamacrocycle in water.Chemical communications (Cambridge, England) · 2010Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
A thiophene-based macrocycle containing four secondary and two tertiary amines has been synthesized and its binding affinity has been investigated toward sulfate anion in solution and solid states. Structural analysis of the sulfate salt suggests that the ligand in its hexaprotonated form, is capable of encapsulating one sulfate within the cavity through cooperative NH⋯O and CH⋯O interactions. As investigated by (1)HNMR titrations, the lignad forms a 1:1 complex with sulfate in water at pH 2.1, showing a binding constant (K) of 3200 M(-1). The formation of the complex has been further confirmed by ESI-MS, indicating that the complex can exist in solution with a considerable stability.
Identifiers
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Registered trials
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