Interaction

curated

Interaction Scheme

Molecule

Quinidine
Quinidine

Host

Scx4 thia
stCx4

Binding Properties

𝜈 Molecule 1 : 1 Host
Ka = 2400.0 ± 300.0 M-1
Kd =
logKa = 3.38 ± 0.05
T 25.0 °C ≈ 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -19.29 ± 0.31 -4.61 ± 0.07
These are the specifications of the determination of the experimental results.
Detection Method: Direct
Assay Type: Direct Binding Assay
Technique: Fluorescence
𝛌ex = 329.0 nm
Detailed information about the solvation.
Solvent System Buffer System 100 mM phosphate pH-7.2
Solvents water
Additives Disodium hydrog... 66.6 mM
Sodium dihydrog... 33.4 mM
Source of Concentration estimated
Total concentration 100.0 mM
pH 7.2
Please find here information about the dataset this interaction is part of.
Citation:

D. Guo, Y. Liu, L. Wang, P. Du, J. Yang, SupraBank 2024, Binding behaviour and solubilisation of p-sulfonatocalixarenes to cinchona alkaloids (dataset). https://doi.org/10.34804/supra.2021092830

Link: https://doi.org/10.34804/supra.2021092830
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Please find here information about the scholarly article describing the results derived from that data.
Citation:

L.-H. Wang, P. Du, J. Yang, D.-S. Guo, Y. Liu, Supramolecular Chemistry 2014, 26, 809–816.

Link: https://doi.org/10.1080/10610278.2014.882509
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Binding Isotherm Simulations

The plot depicts the binding isotherm simulation of a 1:1 interaction of Quinidine (0.008333333333333333 M) and stCx4 (0 — 0.016666666666666666 M).