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Synthesis and Anion Recognition of Novel Molecular Tweezer Receptors Based on Carbonyl Thiosemicarbazide for Fluoride Ions
Author(s) -
WEI Wei,
ZHANG YouMing,
WEI TaiBao
Publication year - 2008
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200890347
Subject(s) - chemistry , thiourea , fluoride , receptor , halide , hydrogen bond , ion , molecule , molecular recognition , selectivity , proton nmr , inorganic chemistry , combinatorial chemistry , stereochemistry , organic chemistry , biochemistry , catalysis
Three title compounds have been designed and synthesized in high yields as novel anion receptors, which show a higher selectivity for F − than other halide ions. The binding properties for fluoride ions of the receptors have been examined by UV‐Vis and 1 H NMR spectroscopy, indicating that a 1:1 stoichiometry complex is formed between the receptors and fluoride ions through hydrogen bonding interactions in DMSO solution. In addition, because these receptors have more binding points, they have better binding properties for anions than the molecular tweezer receptors based on thiourea we reported last time.