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The role of internal energy of polyatomic projectile ions in surface-induced dissociation

✍ Scribed by A. Qayyum; T. Tepnual; C. Mair; S. Matt-Leubner; P. Scheier; Z. Herman; T.D. Märk

Book ID
104108289
Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
222 KB
Volume
376
Category
Article
ISSN
0009-2614

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✦ Synopsis

The effect of initial internal energy on the extent of surface-induced fragmentation was investigated in a tandem mass spectrometer for CH þ 3 and CH þ 4 ions prepared in different ion sources. The different initial internal energy content had a considerable effect on the extent of fragmentation of the surface-excited projectile ions: ions from a Nier source with a large amount of initial internal energy fragmented at much lower collision energies than internally relaxed projectile ions from a Colutron source. A quantitative estimation of this effect showed that the initial internal energy content of the projectile ions was entirely preserved in the projectile ion during the ion/surface collision.

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Internal energy distribution of benzene
Internal energy distribution of benzene molecular ions in surface-induced dissociation
✍ Károly Vékey; Árpád Somogyi; Vicki H. Wysocki 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 649 KB

## Abstract The so‐called ‘deconvolution’ method has been used to determine the internal energy distribution of molecular ions of an organic compound, benzene, excited by collisions with self‐assembled monolayer surfaces formed on gold. The average internal energy was found to increase linearly wit