In the presence of a small amount of bromine, the following light-promoted reaction has been observed. H3C. Br hy CH3 CH3 + Br2 a) Provide the mechanism the propagation stage of the mechanism. b) Use the bond dissociation energies from the last page to calculate the AH for the first propagation step (kJ/mol) c) Draw a sketch of the transition state for the first propagation step. d) One other product is commonly observed for this reaction. Using structural and electronic reasoning, explain the formation of this additional product. H3C H3C. Br H3C, hv CH3 + Br2 CH3 CH3 Br

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In the presence of a small amount of bromine, the following light-promoted reaction has been observed (refer to picture). Provide the mechanism of the propagation stage of the mechanism. One other product is commonly observed for this reaction. Using structural and electronic reasoning to explain the formation of this additonal product.

In the presence of a small amount of bromine, the following light-promoted
reaction has been observed.
H3C.
Br
hy
CH3
CH3 +
Br2
a) Provide the mechanism the propagation stage of the mechanism.
b) Use the bond dissociation energies from the last page to calculate the AH for the first
propagation step (kJ/mol)
c) Draw a sketch of the transition state for the first propagation step.
d) One other product is commonly observed for this reaction. Using structural and electronic
reasoning, explain the formation of this additional product.
H3C
H3C.
Br
H3C,
hv
CH3 +
Br2
CH3
CH3
Br
Transcribed Image Text:In the presence of a small amount of bromine, the following light-promoted reaction has been observed. H3C. Br hy CH3 CH3 + Br2 a) Provide the mechanism the propagation stage of the mechanism. b) Use the bond dissociation energies from the last page to calculate the AH for the first propagation step (kJ/mol) c) Draw a sketch of the transition state for the first propagation step. d) One other product is commonly observed for this reaction. Using structural and electronic reasoning, explain the formation of this additional product. H3C H3C. Br H3C, hv CH3 + Br2 CH3 CH3 Br
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