Question

Below is a catalytic cycle describing the Heck coupling reaction for iodobenzene and vinylthiophene. a) Some reaction labels are provided but two key reaction labels are missing. Please provide all correct structures to complete this catalytic cycle and completing any missing reaction labels. b) For each Fe based structure state (i) the metal coordination number & geometry (ii) metal formal oxidation state (using the ionic model) (iii) the valence d-subshell electron count at the metal (iv) the total valence electron count of each complex. c) Provide plausible transition states for any reaction steps deemed critical. d) Provide a molecular orbital bonding illustration for any important metal-ligand interactions. e) How would you anticipated the following variation in vinyl thiophene substrates to influence this reaction. (40 points)

          Below is a catalytic cycle describing the Heck coupling reaction for iodobenzene and vinylthiophene.

a) Some reaction labels are provided but two key reaction labels are missing. Please provide all correct structures to complete this catalytic cycle and completing any missing reaction labels.

b) For each Fe based structure state (i) the metal coordination number & geometry (ii) metal formal oxidation state (using the ionic model) (iii) the valence d-subshell electron count at the metal (iv) the total valence electron count of each complex.

c) Provide plausible transition states for any reaction steps deemed critical.

d) Provide a molecular orbital bonding illustration for any important metal-ligand interactions.

e) How would you anticipated the following variation in vinyl thiophene substrates to influence this reaction.

(40 points)

Below is a catalytic cycle describing the Heck coupling reaction for iodobenzene and vinylthiophene.

a) Some reaction labels are provided but two key reaction labels are missing. Please provide all correct structures to complete this catalytic cycle and completing any missing reaction labels.

b) For each Fe based structure state (i) the metal coordination number geometry (ii) metal formal oxidation state (using the ionic model) (iii) the valence d-subshell electron count at the metal (iv) the total valence electron count of each complex.

c) Provide plausible transition states for any reaction steps deemed critical.

d) Provide a molecular orbital bonding illustration for any important metal-ligand interactions.

e) How would you anticipated the following variation in vinyl thiophene substrates to influence this reaction.

(40 points)

Added by Albert V.

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