Resolution of the Association Equilibria of 2-(p-Toluidinyl)-naphthalene-6-sulfonate (TNS) with β-Cyclodextrin and a Charged Derivative

2001 ◽  
Vol 105 (25) ◽  
pp. 5994-6003 ◽  
Author(s):  
Emilio Alvarez-Parrilla ◽  
Wajih Al-Soufi ◽  
Pedro Ramos Cabrer ◽  
Mercedes Novo ◽  
José Vázquez Tato
Keyword(s):  
Charged Derivative ◽  
Association Equilibria

The phase instability and critical point in a liquid mixture of an associating and inert component

1979 ◽  
Vol 44 (12) ◽  
pp. 3574-3587
Author(s):  
Julius Pouchlý ◽  
Antonín Sikora
Keyword(s):  
Binary System ◽  
Critical Point ◽  
Multicomponent Mixture ◽  
Liquid Mixture ◽  
Inert Component ◽  
Phase Instability ◽  
Complex Species ◽  
Total Composition ◽  
Association Equilibria ◽  
The Individual

The problem of phase instability in a binary mixture of an associating component with an inert component is analyzed from the standpoint of the theory of association equilibria. It is demonstrated that conditions of the spinodal and critical point for such a binary system are equivalent to those of the spinodal and critical point of a multicomponent mixture consisting of complex species arising by association (including nonassociated molecules). These conditions are formulated so as if species in this mixture did not participate in association and dissociation processes; configurational terms expressing changes in the content of the individual complexes depending on changes in total composition are included implicitly.

Association Equilibria Theory for Polymers in Mixed Solvents with Specific Interactions

2004 ◽  
Vol 13 (5) ◽  
pp. 441-452 ◽  
Author(s):  
Vicente Soria ◽  
Juan E. Figueruelo ◽  
Concepción Abad ◽  
Agustín Campos
Keyword(s):  
Mixed Solvents ◽  
Specific Interactions ◽  
Association Equilibria

Protein-Ligand Association Equilibria

2009 ◽  
pp. 37-62
Author(s):  
Jeannine Yon-Kahn ◽  
Guy Hervé
Keyword(s):  
Association Equilibria

ChemInform Abstract: A Thermometric Investigation of the Association Equilibria of Alcohols in Hydrocarbons

1986 ◽  
Vol 17 (25) ◽  
Author(s):  
P. SARIS ◽  
J. B. ROSENHOLM ◽  
E. SJOEBLOM ◽  
U. HENRIKSSON
Keyword(s):  
Association Equilibria

scholarly journals When spectroscopy fails: The measurement of ion pairing

2006 ◽  
Vol 78 (8) ◽  
pp. 1571-1586 ◽  
Author(s):  
Glenn Hefter
Keyword(s):  
Metal Ion ◽  
Chemical Speciation ◽  
Ion Pairs ◽  
Ion Association ◽  
Ion Pair ◽  
Association Constants ◽  
Spectroscopic Techniques ◽  
Association Equilibria ◽  
Solvent Molecules ◽  
Contact Ion Pairs

Spectroscopic techniques such as UV/vis, NMR, and Raman are powerful tools for the investigation of chemical speciation in solution. However, it is not widely recognized that such techniques do not always provide reliable information about ion association equilibria. Specifically, spectroscopic measurements do not in general produce thermodynamically meaningful association constants for non-contact ion pairs, where the ions are separated by one or more solvent molecules. Such systems can only be properly quantified by techniques such as dielectric or ultrasonic relaxation, which can detect all ion-pair types (or equilibria), or by traditional thermodynamic methods, which detect the overall level of association. Various types of quantitative data are presented for metal ion/sulfate systems in aqueous solution that demonstrate the inadequacy of the major spectroscopic techniques for the investigation of systems that involve solvent-separated ion pairs. The implications for ion association equilibria in general are briefly discussed.

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