Interaction Scheme

Molecule

Neutral red hydrochloride
Neutral red hydrochloride

c = 3.8 µM

Host

Cb7
CB7

c = 0.0 — 150.0 µM

Binding Properties

𝜈 Molecule 1 : 1 Host
Ka = 6500.0 ± 100.0 M-1
Kd =
logKa = 3.81 ± 0.01
T 25.0 °C 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -21.76 ± 0.04 -5.2 ± 0.01
These are the specifications of the determination of the experimental results.
Detection Method: Direct
Assay Type: Direct Binding Assay
Technique: Fluorescence
𝛌ex = 450.0 nm
𝛌em = 600.0 nm
Detailed information about the solvation.
Solvent System Complex Mixture
Solvents water
Additives Sodium hydroxide
pH 11.0
Please find here information about the dataset this interaction is part of.
Citation:

H. Pal, W. M. Nau, J. Mohanty, A. C. Bhasikuttan, SupraBank 2024, Host−Guest Complexation of Neutral Red with Macrocyclic Host Molecules:  Contrasting pKa Shifts and Binding Affinities for Cucurbit[7]uril and β-Cyclodextrin (dataset). https://doi.org/10.34804/supra.20210928398

Link: https://doi.org/10.34804/supra.20210928398
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Please find here information about the scholarly article describing the results derived from that data.
Citation:

J. Mohanty, A. C. Bhasikuttan, W. M. Nau, H. Pal, J. Phys. Chem. B 2006, 110, 5132–5138.

Link: https://doi.org/10.1021/jp056411p
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Binding Isotherm Simulations


The plot depicts the binding isotherm simulation of a 1:1 interaction of Neutral red hydrochloride (0.003076923076923077 M) and CB7 (0 — 0.006153846153846154 M).