-

12

(12 )

-

15%

10 0kJ/mol

XH••• CH•••nCH•••

C-H

( 1kJ/mol)

n

* *

(CT)

CT

H-

) ace-to-

face

ring-over-

ring):(ring-over-bond)

-( )

K = zV0/V

K

(a) -

(b),c) -

a), b)

r-6 r-3

- -

-

-

1,4-

-

-

CH3CN> H3N> (CH3)3N

sp2 sp3