Interaction Scheme

Molecule

N methyl pyridinium
N-methyl pyridinium

Host

Scx4 na
sCx4 sodium salt

Binding Properties

𝜈 Molecule 1 : 1 Host
Ka = 6.40⋅105 ± 3.00⋅104 M-1
Kd =
logKa = 5.81 ± 0.02
T 25.0 °C 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -33.14 ± 0.12 -7.92 ± 0.03
ΔH = -31.2 ± 0.1 -7.46 ± 0.02
-TΔS = -1.9 ± 0.1 -0.45 ± 0.02
J mol-1 K-1 cal mol-1 K-1
ΔS = 6.4 ± 0.3 1.5 ± 0.1
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 Complex Mixture
Solvents water
Additives Sodium hydroxide
pH 7.0
Please find here information about the dataset this interaction is part of.
Citation:

D. Guo, Y. Liu, H. Zhao, SupraBank 2024, Binding Behaviors of p-Sulfonatocalix[4]arene with Gemini Guests (dataset). https://doi.org/10.34804/supra.20210928259

Link: https://doi.org/10.34804/supra.20210928259
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Please find here information about the scholarly article describing the results derived from that data.
Citation:

H.-X. Zhao, D.-S. Guo, Y. Liu, J. Phys. Chem. B 2013, 117, 1978–1987.

Link: https://doi.org/10.1021/jp312744d
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Binding Isotherm Simulations


The plot depicts the binding isotherm simulation of a 1:1 interaction of N-methyl pyridinium (3.125e-05 M) and sCx4 sodium salt (0 — 6.25e-05 M).