Comparison of the low-energy decay mechanisms of C70+ and C70-
Vacuum 83 (4), 761-767, November 2009
Submitted to Cluster Science: 5 January 2010
Last Update: 6 January 2011

10.1016/j.vacuum.2008.05.021
OA Status: can archive pre-print and post-print or publisher's version/PDF

Abstract

Low-energy multiple-collisional-excitation experiments have been performed on C70+ and C70− at the ClusterTrap apparatus. The ions are stored in a Penning trap where they are excited via radial dipolar excitation before undergoing collisions with neutral argon atoms. The dominant decay mechanism for C70+ (sequential loss of C2-units) is compared with the dominant decay process of C70− (thermionic electron emission). A simple model based on the decay rates of the clusters is found to be in reasonable agreement with the experimental data obtained for the fragmentation process of the cationic fullerenes. The same model, when applied to the anions is observed to be in less agreement with the experimental results.

Classifications

Document Type experimental and theoretical
Research Field Fullerenes and Cage Molecules

50 references, 20 in database

1.


Rev. Sci. Instrum. 66 (10), 4902–4910, October 1995.
2.

Int. J. Mass Spectrom. Ion Processes 132 (3), 181–191, April 1994.
3.

Eur. Phys. J. D 16 65–68, 2001.
4.


Int. J. Mass Spectrom. 252 (2), 151–156, May 2006.
5.


Int. J. Mass Spectrom. 229 (1–2), 19–25, September 2003.
6.

J. Electron Spectrosc. Related Phenomena 106 (2–3), 179–186, February 2000.
7.


J. Chem. Phys. 114 (7), 2955–2962, February 2001.
8.


J. Chem. Phys. 110 (15), 7216–7227, April 1999.
9.

Phys. Rev. A 60 (2), 1251–1257, August 1999.
10.


Rapid Commun. Mass Spectrom. 11 (5), 455–458, March 1997.
11.


Eur. Phys. J. D 34 (1–3), 73–77, July 2005.
12.

Z. Phys. D 40 (1–4), 347–350, May 1997.
13.


Chem. Phys. Lett. 348 (3–4), 194–202, November 2001.
14.


Phys. Lett. A 158 (5), 247–252, September 1991.
15.


Eur. Phys. J. D 24 (1–3), 137–143, June 2003.
16.


Eur. Phys. J. D 9 (1–4), 15–20, December 1999.
17.


Eur. Phys. J. D 43 (1–3), 241–245, July 2007.
18.

Eur. Phys. J. D 9 (1–4), 173–177, December 1999.
19.

Hyperfine Interact. 115 (1–4), 171–179, March 1998.
20.


Int. J. Mass Spectrom. 202 (1–3), 47–54, October 2000.