Figures index

From

Learning to Think in Mechanistic Alternatives: SN1 vs. E1 and the Gibbs-Helmholtz Equation

Catharina Schmitt, Lukas Kaiser, Michael Schween

World Journal of Chemical Education. 2019, 7(2), 102-108 doi:10.12691/wjce-7-2-10
  • Figure 1. Energies of alternative reaction pathways A and B, starting from the same reactants
  • Figure 2. Solvolysis of the tert. reactants A and B leads to identical rates of elimination and substitution products
  • Figure 3. Energies of competing SN1 and E1 reactions in comparison
  • Figure 4. Effects of polar-protic solvents at the first step of SN1 and E1 reactions
  • Figure 5. Gibbs-Helmholtz equation and the consequences of increasing the temperature
  • Figure 6. Mechanistic Y model of the SN1/E1 competition
  • Figure 7. Experimental setup for conductance measurements
  • Figure 8. Experimental setup for detecting isobutene
  • Figure 9. Changes in conductance after the addition of the reagent
  • Figure 10. Changes in conductance in experimental set III – Variation of temperature
  • Figure 11. Blank test bromine solution (brown), solution at room temperature (yellow), solution at 40°C (beige) and solution at 60°C (colorless) (left); red indicator paper of the solution at 60°C indicating an acidic gas (right)