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Volumn 9, Issue 25, 2007, Pages 5271-5274

Selective sensing of sulfate in aqueous solution using a fluorescent bis(cyclopeptide)

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EID: 37249092434     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol702386e     Document Type: Article
Times cited : (53)

References (34)
  • 1
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    • Fluorescent Chemosensors for Ion and Molecule Recognition
    • American Chemical Society: Washington, DC
    • Czarnik, A. W. Fluorescent Chemosensors for Ion and Molecule Recognition; ACS Symposium Series 538; American Chemical Society: Washington, DC, 1993.
    • (1993) ACS Symposium Series , vol.538
    • Czarnik, A.W.1
  • 2
    • 0003652229 scopus 로고    scopus 로고
    • Chemosensors for Ion and Molecule Recognition
    • Kluwer Academic Publishers: London
    • Desvergne, J. P.; Czarnik, A. W. Chemosensors for Ion and Molecule Recognition; NATO Asi Series, Series C; Kluwer Academic Publishers: London, 1997.
    • (1997) NATO Asi Series, Series , vol.100
    • Desvergne, J.P.1    Czarnik, A.W.2
  • 3
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    • For, selected reviews, see
    • For, selected reviews, see: Czarnik, A. W. Acc. Chem. Res. 1994, 27, 302-308.
    • (1994) Acc. Chem. Res , vol.27 , pp. 302-308
    • Czarnik, A.W.1
  • 16
    • 0000129332 scopus 로고    scopus 로고
    • For recent examples of other cyclopeptide-based chemosensors, see
    • For recent examples of other cyclopeptide-based chemosensors, see: Leipert, D.; Nopper, D.; Bauser, M.; Gauglitz, G.; Jung, G. Angew. Chem. 1998, 110, 3503-3505;
    • (1998) Angew. Chem , vol.110 , pp. 3503-3505
    • Leipert, D.1    Nopper, D.2    Bauser, M.3    Gauglitz, G.4    Jung, G.5
  • 17
    • 0032542306 scopus 로고    scopus 로고
    • Angew. Chem., Int. Ed. 1998, 37, 3311-3314.
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    • Angew1
  • 26
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    • Additional peaks are visible in the spectrum around the peak of the 1:1 sulfate complex evenly spaced by exactly 14 mass units. These peaks could correspond to sulfate complexes containing derivatives of 1 with different numbers of methyl groups in the biphenyl substituents. As HPLC and NMR spectroscopic characterization gave no indication of major impurities in the sample used for the measurement we believe that partial decomposition of 1 occurs during ionization.
    • Additional peaks are visible in the spectrum around the peak of the 1:1 sulfate complex evenly spaced by exactly 14 mass units. These peaks could correspond to sulfate complexes containing derivatives of 1 with different numbers of methyl groups in the biphenyl substituents. As HPLC and NMR spectroscopic characterization gave no indication of major impurities in the sample used for the measurement we believe that partial decomposition of 1 occurs during ionization.
  • 27
    • 37249050063 scopus 로고    scopus 로고
    • The binding isotherms obtained by the ITC titrations were all fitted by using the model of substrate binding to receptors with a single set of identical binding sites although formation of higher complexes in the case of iodide complexation cannot be ruled out
    • The binding isotherms obtained by the ITC titrations were all fitted by using the model of substrate binding to receptors with a single set of identical binding sites although formation of higher complexes in the case of iodide complexation cannot be ruled out.
  • 28
    • 37249090450 scopus 로고    scopus 로고
    • Calculations were performed by using MacSpartan '04 (Wavefunction Inc.) on the P enantiomers of A, B, and C (positive dihedral angle) with anti-oriented formyl groups. The biphenyl linker in the sulfate complex of 1 adopts the M conformation (negative dihedral angle).
    • Calculations were performed by using MacSpartan '04 (Wavefunction Inc.) on the P enantiomers of A, B, and C (positive dihedral angle) with anti-oriented formyl groups. The biphenyl linker in the sulfate complex of 1 adopts the M conformation (negative dihedral angle).


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