60 lost C 2 fragments sequentially and at C 32 blew up completely into small carbon species and atoms C 60 C 58 C 56 C 32 C ID: 473221
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Rice Group showed that under intense laser irradiation C
60
lost C
2
fragments sequentially and at C
32
blew up completely into small carbon species and atoms
C
60 → C58 → C56 → → → → C32 →
C
2
C
2
C
2
C
n
(n small)Slide5Slide6
C
28
should be special - a tetravalent “
Superatom”
atom
H W Kroto, Nature,
329,
529 (
1987)
Polaroid image of the first molecular model of C
28Slide7
Mass spectrum of laser vapourised graphite (Rice 1985)
C
28Slide8
Sussex NNCSlide9
Sussex NNC
~
sp
3Slide10
Four Benzenoid aromatic rings remainSlide11
Exxon Data
Cox et al
JACS
110
1588 (1988)Slide12
Exxon Data
Cox et al
JACS
110
1588 (1988)
NB
No C
22
possible!Slide13
My 4 out of 5 Rule
4/5Slide14
C
28 SSlide15
©
The Pentagon Isolation Rule
SSlide16
©
C
70Slide17Slide18