Ionization and fragmentation of C[sub 60]. An electron impact ionization study
Journal Article
·
· Journal of Physical Chemistry; (United States)
- Indira Gandhi Centre for Atomic Research, Kalpakkam (India)
Ionization efficiency curves of both singly and doubly charged fullerene ions (C[sub 60[minus]2n][sup m+], n = 1-5, m = 1 and 2) were determined for the first time, employing electron impact ionization. Appearance energies of all these fragment ions were derived from these data. Relative abundances of the fragment ions were computed from the measured ion intensities and compared with those available in the literature. The results of the present investigation are compared with the data available in the literature on multiply charged and fragment ions. Based on the measured appearance energies of the fragment ions, ionization energies for the formation of doubly charged fragment ions are derived. Enthalpies of formation of C[sub 60[minus]2n] (fragment) fullerenes are derived for the first time. The enthalpy data of fullerenes derived in the present work support the loss of C[sub 2n] as the mechanism of fragmentation. 102 refs., 15 figs., 10 tabs.
- OSTI ID:
- 6458002
- Journal Information:
- Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 99:10; ISSN JPCHAX; ISSN 0022-3654
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360600* -- Other Materials
360606 -- Other Materials-- Physical Properties-- (1992-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400600 -- Radiation Chemistry
CARBON
CHARGED PARTICLES
COLLISIONS
COMPILED DATA
DATA
ELECTRON COLLISIONS
ELEMENTS
ENTHALPY
EXPERIMENTAL DATA
FORMATION HEAT
FRAGMENTATION
FULLERENES
INFORMATION
IONIZATION
IONS
NONMETALS
NUMERICAL DATA
PARTICLES
PHYSICAL PROPERTIES
REACTION HEAT
THERMODYNAMIC PROPERTIES
360600* -- Other Materials
360606 -- Other Materials-- Physical Properties-- (1992-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400600 -- Radiation Chemistry
CARBON
CHARGED PARTICLES
COLLISIONS
COMPILED DATA
DATA
ELECTRON COLLISIONS
ELEMENTS
ENTHALPY
EXPERIMENTAL DATA
FORMATION HEAT
FRAGMENTATION
FULLERENES
INFORMATION
IONIZATION
IONS
NONMETALS
NUMERICAL DATA
PARTICLES
PHYSICAL PROPERTIES
REACTION HEAT
THERMODYNAMIC PROPERTIES