Interaction

curated

Interaction Scheme

Molecule

Rhodamine b
Rhodamine B

c = 10.0 µM

Host

Scx4
sCx4

Binding Properties

𝜈 Molecule 1 : 1 Host
Ka = 2010.0 ± M-1
Kd =
logKa = 3.3 ± 0.0
T 25.0 °C ≈ 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -18.85 ± 0.0 -4.51 ± 0.0
These are the specifications of the determination of the experimental results.
Detection Method: Direct
Assay Type: Direct Binding Assay
Technique: Fluorescence
𝛌ex = 400.0 nm
𝛌em = 581.0 nm
Ibound⁄Ifree = 0.7
Detailed information about the solvation.
Solvent System Buffer System 20 mM phosphate pH-6.6
Solvents water
Additives phosphate 20.0 mM
Source of Concentration estimated
Total concentration 20.0 mM
pH 6.6
Please find here information about the dataset this interaction is part of.
Citation:

Y. Zhang, W. Cao, J. Xu, SupraBank 2025, Interaction of Sulfonated Calix[n]arenes with Rhodamine B and Its Application to Determine Acetylcholine in a Real Neutral Aqueous Medium (dataset). https://doi.org/10.34804/supra.2021092810

Link: https://doi.org/10.34804/supra.2021092810
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Please find here information about the scholarly article describing the results derived from that data.
Citation:

Y.-J. Zhang, W.-X. Cao, J. Xu, Chin. J. Chem. 2010, 20, 322–326.

Link: https://doi.org/10.1002/cjoc.20020200406
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Binding Isotherm Simulations

The plot depicts the binding isotherm simulation of a 1:1 interaction of Rhodamine B (0.009950248756218905 M) and sCx4 (0 — 0.01990049751243781 M).