Related Experiment Video
Updated: Jan 31, 2026

Preparation of Primary Neurons for Visualizing Neurites in a Frozen-hydrated State Using Cryo-Electron Tomography
Published on: February 12, 2014
Activation of Ru(bpy)32+ multibubble sonochemiluminescence in alkaline aqueous solutions by a hydrated electron
G L Sharipov1, A M Abdrakhmanov1, L R Yakshembetova1
1Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, Ufa, Russian Federation.
Abstract:
The sonochemiluminescence in 10-4 M aqueous solutions of Ru(bpy)3Cl2 was studied in the presence of NaOH and KOH (up to 0.4 M). The observed increase in the steady-state emission intensity from Ru(bpy)32+ as compared with the intensity in neutral solutions was attributed to conversion of H resulting from water sonolysis to eaq. As a result, there is a multiple (>106) change in the concentrations of the sonochemical intermediates Ru(bpy)3+ and Ru(bpy)33+. The reduction of the Ru(bpy)33+ ion with H, which is of low efficiency for the formation of the excited *Ru(bpy)32+ ion, is replaced by reduction with hydrated electron, in which *Ru(bpy)32+ is generated in a high yield. The participation of eaq provides a fivefold increase in the sonochemiluminescence intensity in a key disproportionation reaction: Ru(bpy)3+ + Ru(bpy)33+ → Ru(bpy)32+ + *Ru(bpy)32+. It was shown that chemiluminescence from reduction of intermediate Ru(bpy)33+ with the OH- ion does not make a pronounced contribution to the sonochemiluminescence intensity.
More Related Videos
Related Concept Videos
Aqueous Solutions and Heats of Hydration
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
Chemical Reactions in Aqueous Solutions
Leveling Effect and Non-Aqueous Acid-Base Solutions
The Leveling Effect of a Solvent
A generic acid (HA) reacts with the generic base (B-) to yield the corresponding conjugate base (A-) and conjugate acid (HB):
General Properties of Solutions
Hydration of Cement
Solution Formation
This selective...

