• Presentation
  • Reactions
  • Contact
  • Reacciones de adición
    • Simple addition
    • Oxidative addition
    • Addition with insertion
    • Addition with elimination
  • Substitution reactions
    • Dissociative mechanism
    • Associative mechanism
    • Exchange mechanism
  • Double substitution or exchange reactions
    • Halide exchange mechanism
    • Exchange mechanism in other compounds
  • Rearrangement or isomerization reactions
    • Isomerization mechanisms in compounds of representative elements
    • Isomerization mechanisms in coordination compounds
  • Proton transfer reactions
    • Proton transfer in compounds of representative elements
    • Proton transfer in compounds of transition elements
  • Electron transfer reactions
    • Electron transfer in compounds of representative elements
    • Electron transfer in compounds of transition elements

Electron transfer in compounds of representative elements

Examples

S2O32- + I2 ⇄ S4O62- + 2I-

2NO + O2 ⇄ 2NO2

2ClO- ⇄ Cl- + ClO2-

3ClO- ⇄ ClO3- + 2Cl-

S2O32- + I2 ⇄ S4O62- + 2I-

S2O32- + I2 ⇄ S4O62-+ 2I-

This redox reaction involves the nucleophilic attack of the terminal sulfur of the thiosulfate anion to the iodine molecule, that undergoes heterolytic cleavage. After that, another thiosulfate anion attacks the sulfur atom linked to iodine, eliminating an I- and forming the [O3S-SS-SO3]2- anion (tetrathionate) .

The reaction 2NO + O2 ⇄ 2NO2

This redox reaction is first order for O2 and second order for NO. The proposed mechanism implies a consecutive attack of the two molecules of NO followed by cleavage of the O-O bond.

The reaction 2ClO- ⇄ ClO2- + Cl-

In this redox reaction there is oxygen transfer between two ione ClO- anions.

The reaction 3ClO- ⇄ ClO3- + 2Cl-

In this redox reaction there are two consecutive oxygen transfers