Question

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第二張是解答，中間那個圖怎麼畫出來的

7-68
The isobutyl cation spontaneously rearranges to the tert-butyl cation by
a hydride shift. Is the rearrangement exergonic or endergonic? Draw
what you
think the transition state for the hydride shift might look like
according to the Hammond postulate.
H3C CH3
CH3
+C-CH3
H
C+
H3C
H
Isobutyl cation
tert-Butyl cation

7.68 The reaction is exergonic because it is spontaneous. According to the Hammond postulate,
the transition state should resemble the isobutyl cation.
H
H
+
H3C--C-CH2
H3C
H3C
18+
H3C--
Học-C-CHo
H3C