Contrasting B/RD

G. Mechanisms that Racemize the Λ and Δ Forms of Metal Tris Chelates
1. Non-dissociative Mechanisms: c. Contrasting the Bailar Twist and Rây-Dutt Mechanisms for GaL₃

Calculated Transition State for the Bailar Twist
Viewing Tools:
Spin Ignore Hydrogens
Back Os green/Front Os red
Ignore Hydrogens and Carbons

Viewing Calculated Motions

Vibrational Mode On
Vectors on

Calculated Transition State for the Rây-Dutt
Viewing Tools:
Spin Ignore Hydrogens
Color Code O Atoms
Ignore Carbons and Hydrogens

Viewing Calculated Motions

Vibrational Mode On
Vectors on

After Viewing both the Bailar Twist the Rây-Dutt Mechanism from several different orientations list the similarities and differences between the two mechanisms. Suggest what experiments you might do to ascertain if one mechanism was much more favorable than the other for a specific molecule.

Return to Index

Resources developed by Marion E. Cass, Carleton College and updated in 2014. Computations and content done in consultation with Henry S. Rzepa, Imperial College, London

G. Mechanisms that Racemize the Λ and Δ Forms of Metal Tris Chelates 1. Non-dissociative Mechanisms: c. Contrasting the Bailar Twist and Rây-Dutt Mechanisms for GaL3

G. Mechanisms that Racemize the Λ and Δ Forms of Metal Tris Chelates
1. Non-dissociative Mechanisms: c. Contrasting the Bailar Twist and Rây-Dutt Mechanisms for GaL₃