Resolution of the association equilibria of 2-(p-toluidinyl)-naphthalene-6-sulfonate (TNS) with β-cyclodextrin and a charged derivative

Journal of Physical Chemistry B

Volumn 105, Issue 25, 2001, Pages 5994-6003

  Alvarez Parrilla, Emilio ^a   Al Soufi, Wajih ^a   Ramos Cabrer, Pedro ^a   Novo, Mercedes ^a   Vázquez Tato, José ^a  

^a UNIVERSITY OF SANTIAGO DE COMPOSTELA   (Spain)

Author keywords

[No Author keywords available]

Indexed keywords

ELECTROSTATIC EFFECTS;

COMPLEXATION; DERIVATIVES; FLUORESCENCE; NEGATIVE IONS; NUCLEAR MAGNETIC RESONANCE; PHASE EQUILIBRIA; POLYSACCHARIDES; RATE CONSTANTS; STOICHIOMETRY;

AROMATIC HYDROCARBONS;

EID: 0035963773     PISSN: 10895647     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp003310c     Document Type: Article

References (29)

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26. If there are not interconversion processes in the excited state, the preexponential factors or amplitudes obtained in the fit of a multiexponential model to an experimental decay are proportional to the concentrations of the corresponding species and to their fluorescence quantum yields. Nevertheless, the values of such amplitudes must be taken with care, since they are very imprecise, especially when a triexponential model is used.
27. Although the errors of these constants cannot be calculated, they must be quite large, since they are subjected to the errors in the determination of the spectral contributions of C11N and C11T. Therefore, the values of the microscopic association constants should be taken as rough estimations.
28. Note that the errors given for these parameters are only the statistical errors obtained in the fits and do not include the great uncertainty of the microscopic association constants used to calculate the concentrations of the complexes.
29. 2b is redundant, since only three equations are needed to determine the three unknown concentrations.