Interaction Scheme

Molecule

Untitled
Tetramethylammonium chloride

Host

Cx4 ch2coo
Cx4-CH2COOH

Binding Properties

𝜈 Molecule 1 : 1 Host
Ka = 125.89 M-1
Kd =
logKa = 2.1
T 25.0 °C 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -11.99 -2.87
ΔH = -21.7568 -5.2
-TΔS = 10.0416 2.4
J mol-1 K-1 cal mol-1 K-1
ΔS = -33.7 -8.0
These are the specifications of the determination of the experimental results.
Detection Method: Direct
Assay Type: Direct Binding Assay
Technique: Isothermal Titration Calorimetry
Molecule: syringe
Partner: syringe
Detailed information about the solvation.
Solvent System Single Solvent
Solvent water
pH 7.0
Please find here information about the dataset this interaction is part of.
Citation:

G. Arena, F. G. Gulino, D. Sciotto, A. Casnati, A. Contino, R. Ungaro, SupraBank 2024, Entropic origin of the sulfonate groups’ electrostatic assistance in the complexation of quaternary ammonium cations by water soluble calix[4]arenes (dataset). https://doi.org/10.34804/supra.20210928389

Link: https://doi.org/10.34804/supra.20210928389
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Please find here information about the scholarly article describing the results derived from that data.
Citation:

G. Arena, A. Casnati, A. Contino, F. G. Gulino, D. Sciotto, R. Ungaro, J. Chem. Soc., Perkin Trans. 2 2000, 419–423.

Link: https://doi.org/10.1039/A909847J
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Binding Isotherm Simulations


The plot depicts the binding isotherm simulation of a 1:1 interaction of Tetramethylammonium chloride (0.15886885376122012 M) and Cx4-CH2COOH (0 — 0.31773770752244024 M).