Evidence of anion-induced dimerization of a squaramide-based host in protic solvents

The combination of squaramide units with tetraalkylammonium groups leads two hosts that bind distinctively dianions in water-ethanol mixtures. The formation of complexes of 2:1 stoichiometry with host was supported by ITC, fluorescence, and (1)H NMR data.

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2007-03 (9), p.963-965
Main Authors: Piña, M Neus, Rotger, Carmen, Soberats, Bartomeu, Ballester, Pablo, Deyà, Pere M, Costa, Antoni
Format: Article
Language:English
Subjects:
Amines - chemistry
Anions - chemistry
Calorimetry
Cyclobutanes - chemistry
Dimerization
Erythrosine - chemistry
Magnetic Resonance Spectroscopy
Quaternary Ammonium Compounds - chemistry
Spectrometry, Fluorescence
Thermodynamics
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Summary:The combination of squaramide units with tetraalkylammonium groups leads two hosts that bind distinctively dianions in water-ethanol mixtures. The formation of complexes of 2:1 stoichiometry with host was supported by ITC, fluorescence, and (1)H NMR data.
ISSN:1359-7345
1364-548X
DOI:10.1039/b614172b