Interaction

curated

Interaction Scheme

Molecule

Barbital
Barbital

c = 0.0 — 700.0 µM

Host

5 nitro n n' bis 6 %28pentanoylamino%29pyrid 2 yl isophthalamide
5-Nitro-N,N'-bis[6-(pentanoylamino)pyrid-2-yl]i...

c = 400.0 µM

Binding Properties

𝜈 Molecule 1 : 1 Host
Ka = 1.06⋅105 ± 5700.0 M-1
Kd =
logKa = 5.03 ± 0.02
T 25.0 °C ≈ 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -28.68 ± 0.13 -6.85 ± 0.03
ΔH = -153.1 -36.59
-TΔS = 124.6 29.78
J mol-1 K-1 cal mol-1 K-1
ΔS = -417.9 -99.9
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 chloroform
Please find here information about the dataset this interaction is part of.
Citation:

C. Dethlefs, J. Eckelmann, H. Kobarg, T. Weyrich, S. Brammer, C. Näther, U. Lüning, SupraBank 2025, Determination of Binding Constants of Hydrogen-Bonded Complexes by ITC, NMR CIS, and NMR Diffusion Experiments (dataset). https://doi.org/10.34804/supra.20210928396

Link: https://doi.org/10.34804/supra.20210928396
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Please find here information about the scholarly article describing the results derived from that data.
Citation:

C. Dethlefs, J. Eckelmann, H. Kobarg, T. Weyrich, S. Brammer, C. Näther, U. Lüning, Eur. J. Org. Chem. 2011, 2011, 2066–2074.

Link: https://doi.org/10.1002/ejoc.201001684
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Binding Isotherm Simulations

The plot depicts the binding isotherm simulation of a 1:1 interaction of Barbital (0.00018867924528301886 M) and 5-Nitro-N,N'-bis[6-(pentanoylamino)pyrid-2-yl]isophthalamide (0 — 0.0003773584905660377 M).