Magic and hot giant fullerenes formed inside ion irradiated weakly bound C(60) clusters.
We find that the most stable fullerene isomers, C(70)-C(94), form efficiently in close-to central collisions between keV atomic ions and weakly bound clusters of more than 15 C(60)-molecules. We observe extraordinarily high yields of C(70) and marked preferences for C(78) and C(84). Larger even-size carbon molecules, C(96)-C(180), follow a smooth log-normal (statistical) intensity distribution. Measurements of kinetic energies indicate that C(70)-C(94) mainly are formed by coalescence reactions between small carbon molecules and C(60), while C(n) with n≥96 are due to self-assembly (of small molecules) and shrinking hot giant fullerenes.
Zettergren
H
H
Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden. henning@fysik.su.se
Johansson
H A B
HA
Schmidt
H T
HT
Jensen
J
J
Hvelplund
P
P
Tomita
S
S
Wang
Y
Y
Martín
F
F
Alcamí
M
M
Manil
B
B
Maunoury
L
L
Huber
B A
BA
Cederquist
H
H
D037741:Fullerenes / Q000737:chemistry*; D007477:Ions / Q000737:chemistry; D007700:Kinetics; D013237:Stereoisomerism; D013816:Thermodynamics
D037741:Fullerenes; D007477:Ions