Novel anion receptors for selective recognition of dimethyl phosphinate and carboxylate

Sohn, Dae Hyup; Park, Jong Il; Cho, Seung Joo; Kang, Jongmin

doi:10.1016/j.tet.2016.11.076

Cited by 10 publications

(2 citation statements)

References 35 publications

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“…This may be due to the interaction between the active hydrogen in the host molecular tweezer 7d and highly electronegative F − ions, which form hydrogen bonds (N-H... F). As a result, the charge of the benzene rings increases, indirectly leading to the change of aromatic ring hydrogen signal [ 40 ]. Therefore, both N-H amide groups on the chiral molecular tweezer 7d interact with F − ions, promoting changes in the optical properties, thus achieving F − ion detection.…”

Section: Resultsmentioning

confidence: 99%

Cholesteric Chiral Molecular Tweezer for Rapid Detection of F− in Food Samples

et al. 2022

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Chiral cholesteric molecular tweezer 7d was synthesized and its influences on changes in the ultraviolet (UV) and fluorescence spectra of various anions were investigated. The results displayed that molecular tweezer 7d selectively recognized F− ions in dimethyl sulfoxide with a detection limit of 5.14 μmol/L, while other anions had little interference. On this basis, a method for the rapid detection of F− ions by host molecular tweezer 7d was established, and the naked-eye detection of F− was realized through the unique yellow color of the complex solution. According to the determination of F− ions in real food samples, it was proved that the established method had good application prospects in F− ion detection.

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Section: Resultsmentioning

confidence: 99%

Cholesteric Chiral Molecular Tweezer for Rapid Detection of F− in Food Samples

et al. 2022

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“…have reported the development of a cholic-acid-based fluorescent receptor, exploiting the thiourea motif that is capable of binding anions through hydrogen bonding (HB) interactions. 24,31 Moreno-Valle et al . successfully synthesized a new group of receptors containing the urea and benzamide groups.…”

Section: Introductionmentioning

confidence: 99%

Macrocyclic versus open-chain carbazole receptors for carboxylate binding

et al. 2022

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Differential Recognition of Various Anions Utilizing Aromatic CH Hydrogen Bonding

Han

Sohn

Cho

et al. 2018

Bulletin Korean Chem Soc

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Dihydrogen phosphate selective anion receptors 1, 2, and 3 that utilize amide N H, and C H for anion recognition have been designed and synthesized. For 1 and 2, aromatic C H hydrogen bonding element is present on naphthyl rings (H a ). In addition, for receptor 1, this aromatic hydrogen bonding element is further polarized by the nitro groups, which would enhance the hydrogen bonding ability. Partial charges derived from Natural Population Analysis also supported the existence of this polarization. That is, positive partial charge of H a in receptor 1 was more positive than that in receptor 2. As expected from the partial charge values, receptor 1 consistently showed highest affinity among three receptors, followed by receptor 2 regardless of the anions tested in this study. Therefore, we have shown that affinity modulation of a receptor was possible by changing the nature of the aromatic C H hydrogen. In addition, the receptors showed selectivity toward dihydrogen phosphate among various anions including acetate and chloride.

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Novel anion receptors for selective recognition of dimethyl phosphinate and carboxylate

Cited by 10 publications

References 35 publications

Cholesteric Chiral Molecular Tweezer for Rapid Detection of F− in Food Samples

Cholesteric Chiral Molecular Tweezer for Rapid Detection of F− in Food Samples

Macrocyclic versus open-chain carbazole receptors for carboxylate binding

Differential Recognition of Various Anions Utilizing Aromatic CH Hydrogen Bonding

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