Interaction

uncurated

Interaction Scheme

Molecule

3
3-benzyl-1-methyl-1H-imidazol-3-ium

Host

Cb8
CB8

Cofactor

3
3-benzyl-1-methyl-1H-imidazol-3-ium

Binding Properties

𝜈 Molecule 1 : 1 Host
Ka = 1.26⋅106 ± 2.10⋅104 M-1
Kd =
logKa = 6.1 ± 0.01
T 25.0 °C ≈ 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -34.82 ± 0.04 -8.32 ± 0.01
ΔH = -42.8 ± 0.3 -10.23 ± 0.07
-TΔS = 8.0 ± 0.3 1.91 ± 0.07
J mol-1 K-1 cal mol-1 K-1
ΔS = -26.8 ± 1.0 -6.4 ± 0.2
Comment
Bromide ions are the counter ions.
These are the specifications of the determination of the experimental results.
Detection Method: Direct
Assay Type: Associative Binding Assay
Technique: Isothermal Titration Calorimetry
Instrument: Microcal VP-ITC
Molecule: syringe
Partner: cell
Cofactor: cell
Ninjection = 28
Vinjection = 10.0 𝜇L
Vinit = 5.0 𝜇L
Detailed information about the solvation.
Solvent System Buffer System 50 mM acetate pH-4.75
Solvents water
Additives acetic acid
Sodium acetate
Source of Concentration
Total concentration 50.0 mM
pH 4.75
Please find here information about the dataset this interaction is part of.
Citation:

Z. Huang, K. Qin, G. Deng, G. Wu, Y. Bai, J. Xu, Z. Wang, Z. Yu, O. A. Scherman, X. Zhang, SupraBank 2024, Supramolecular Chemistry of Cucurbiturils: Tuning Cooperativity with Multiple Noncovalent Interactions from Positive to Negative (dataset). https://doi.org/10.34804/supra.20240423552

Link: https://doi.org/10.34804/supra.20240423552
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Please find here information about the scholarly article describing the results derived from that data.
Citation:

Z. Huang, K. Qin, G. Deng, G. Wu, Y. Bai, J.-F. Xu, Z. Wang, Z. Yu, O. A. Scherman, X. Zhang, Langmuir 2016, 32, 12352–12360.

Link: https://doi.org/10.1021/acs.langmuir.6b01709
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Binding Isotherm Simulations

The plot depicts the binding isotherm simulation of a 1:1 interaction of 3-benzyl-1-methyl-1H-imidazol-3-ium (1.5873015873015872e-05 M) and CB8 (0 — 3.1746031746031745e-05 M).