Interaction Scheme

Molecule

1 4 diazepane
Homopiperazine

c = 1000.0 µM

Host

Scx4 thia
stCx4

c = 0.0 — 2989.0 µM

Binding Properties

𝜈 Molecule 1 : 1 Host
Ka = 243.0 ± 6.0 M-1
Kd =
logKa = 2.39 ± 0.01
T 25.0 °C 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -13.62 ± 0.06 -3.26 ± 0.01
ΔH = -16.0 ± 0.33 -3.82 ± 0.08
-TΔS = 2.8 ± 0.39 0.67 ± 0.09
J mol-1 K-1 cal mol-1 K-1
ΔS = -9.4 ± 1.3 -2.2 ± 0.3
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 Buffer System 100 mM phosphate pH-7.2
Solvents water
Additives Disodium hydrog...
Sodium dihydro...
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:

Y. Liu, E. Yang, Y. Chen, SupraBank 2024, Intermolecular complexation thermodynamics between water-soluble calix[4]arenes and diazacycloalkanes (dataset). https://doi.org/10.34804/supra.20210928171

Link: https://doi.org/10.34804/supra.20210928171
Export: BibTex | RIS | EndNote
Please find here information about the scholarly article describing the results derived from that data.
Citation:

Y. Liu, E.-C. Yang, Y. Chen, Thermochimica Acta 2005, 429, 163–166.

Link: https://doi.org/10.1016/j.tca.2005.03.002
Export: BibTex | RIS | EndNote

Binding Isotherm Simulations


The plot depicts the binding isotherm simulation of a 1:1 interaction of Homopiperazine (0.0823045267489712 M) and stCx4 (0 — 0.1646090534979424 M).