The Dissociation Pattern of 3 keV-C 70 +• Colliding with He. Inaccuracies in the Fragment Ion Intensities from Linked Scans

The Int. J. Mass Spectrom. Ion Processes has devoted a whole issue—138 (1994) “Fullerenes, Carbon and Metal—Carbon Cluster Ions“—to this topic.

McElvany S.W. Ross M.M. , J. Am. Soc. Mass Spectrom. 3, 268 (1992).

Schwarz H. Weiske T. Böhme D.K. Hrusák J. , in Buckminsterfullerenes, Ed. by Billups W.E. Ciufolini M.A. . VCH Publishers, New York, pp. 257–283 (1993), and references therein.

Caldwell K.A. Giblin D.E. Gross M.L. , J. Am. Chem. Soc. 114, 3743 (1992).

Kleiser R. Sprang H. Furrer S. Campbell E.E.B. , Z. Phys. D 28, 89 (1993), and references cited therein.

Wan Z. Christian J.F. Anderson S.L. , Phys. Rev. Lett. 69, 1352 (1992).

Wan Z. Christian J.F. Basir Y. Anderson S.L. , J. Chem. Phys. 99, 5858 (1993), and references cited therein.

Young A.B. Cousins L.M. Harrison A.G. , Rapid Commun. Mass Spectrom. 5, 226 (1991).

Campbell E.E.B. Ehlich R. Westerburg M. Hertel I.V. , Invited Progress Report. XVIII ICPEAC, Århus (1993), in press.

Hvelplund P. Andersen L.H. Haugen H.K. Lind-Hard J. Lorents D.C. Malhotra R. Ruoff R. , Phys. Rev. Lett. 69, 1915 (1992).

The maximum energy available to be transferred to the internal degrees of freedom of an ion that collides with an atom is given by the centre-of-mass collision energy, E_cm: E_cm = m_a (m_a + m_ion)^-1 E_ion, with m being the mass of the atom (m_a) and the ion (m_ion) and E_ion representing the translational energy of the ion.

Takayama M. Shinohara H. , Fullerene Sci. and Technol. 2, 165 (1994).

Lezius M. Scheier P. Foltin M. Dünser B. Rauth T. Akimov V.M. Krätschmer W. Märk TD. , Int. J. Mass Spectrom. Ion Processes 129, 49 (1993).

Stach J. Möder M. Herzschuh R. , Z. Chem. 30, 157 (1990).

Drewello T. Herzschuh R. Stach J. , Z. Phys. D 28, 339 (1993).

Cox D.M. Behal S. Disko M. Gorun S.M. Greaney M. Hsu C.S. Kollin E.B. Millar J. Robbins J. Robbins W. Sherwood R.D. Tindall P. , J. Am. Chem. Soc. 113, 2940 (1991).

Lifshitz C. Laskin J. Peres T. , Org. Mass Spectrom. 28, 1001 (1993).

Yu D.H. Andersen L.H. Brink C. Hvelplund P. , Z. Phys. D 29, 53 (1994).

Drewello T. Asmus K.-D. Stach J. Herzschuh R. Kao M. Foote C.S. , J. Phys. Chem. 95, 10554 (1991).

Ross M.M. Callahan J.H. , J. Phys. Chem. 95, 5720 (1991).

Bruins A.P. Jennings K.R. , Int. J. Mass Spectrom. Ion Phys. 26, 395 (1978).

Eller K. Drewello T. , Org. Mass Spectrom. 28, 1462 (1993).

At present there are very few sector-field mass spectrometers for which these considerations are not valid. For a set-up that can overcome these problems, see Reference 4.

Uggerud E. Derrick P.J. , J. Phys. Chem. 95, 1430 (1991).

Alexander A.J. Thibault P. Boyd R.K. , J. Am. Chem. Soc. 112, 2484 (1990).

For similar experiments on 8 keV-C₆₀^+• colliding with He an energy shift of some 100 eV was found, see Reference 20.

Luffer D.R. Schram K.H. , Rapid Commun. Mass Spectrom. 4, 552 (1990).

Doyle R.J. Ross M.M. , J. Phys. Chem. 95, 4954 (1991).

Brink C. Andersen L.H. Hvelplund P. Yu D.H. , Z. Phys. D 29, 45 (1994).