Receptors for sulfate that function across a wide pH range in mixed aqueous-DMSO media

Water soluble squaramide macrocycles (MSQs) display high sulfate binding affinities in aqueous DMSO mixtures. The introduction of pyridine spacers into the macrocycles resulted in increased sulfate binding affinity in comparison to compounds with benzene spacers. [3]MSQ 6 was found to be a selective...

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Published inChemical communications (Cambridge, England) Vol. 55; no. 82; pp. 12312 - 12315
Main Authors Qin, Lei, Wright, James R, Lane, Jakob D. E, Berry, Stuart N, Elmes, Robert B. P, Jolliffe, Katrina A
Format Journal Article
LanguageEnglish
Published CAMBRIDGE Royal Soc Chemistry 10.10.2019
Royal Society of Chemistry
Subjects
Affinity
Benzene
Binding
Chemistry
Chemistry, Multidisciplinary
Physical Sciences
Receptors
Science & Technology
Spacers
DEPROTONATION
SQUARAMIDE
THERMODYNAMICS
AFFINITY
SELECTIVE RECOGNITION
ANION RECOGNITION
SEPARATION
EXCHANGE
BINDING
UREA
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Summary:Water soluble squaramide macrocycles (MSQs) display high sulfate binding affinities in aqueous DMSO mixtures. The introduction of pyridine spacers into the macrocycles resulted in increased sulfate binding affinity in comparison to compounds with benzene spacers. [3]MSQ 6 was found to be a selective ligand for SO 4 2− in highly competitive conditions and over a wide pH range (3.2-14). Water soluble macrocyclic squaramides bind selectively to sulfate in aqueous-DMSO mixtures across a pH range from 3.2-14.
Bibliography:Electronic supplementary information (ESI) available. See DOI
10.1039/c9cc06812k
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:1359-7345
1364-548X
DOI:10.1039/c9cc06812k