Soft deposition of organic macromolecules with fast atom bombardment mass spectrometry

Eur. J. Mass Spectrom. 11, 287–294 (2005)
DOI: 10.1255/ejms.762

Soft deposition of organic macromolecules with fast atom bombardment mass spectrometry

X. Yang,^* H.J. Räder, A. Rouhanipour and K. Müllen
Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany

ABSTRACT:

In order to investigate the requirements for soft deposition of intact positively charged organic macromolecules, an homogenous series of modal compounds such as polyphenylene dendronized perylenes (PDPs), C₈₀H₅₂, C₂₀₀H₁₃₂ and C₃₂₀H₂₁₂ and a series of derivatives involving perylene derivative, C₉₈H₁₀₄N₈O₄, terrylene derivative, C₇₈H₈₂N₆O₄ and quaterrylene derivative, C₁₄₀H₁₃₈N₁₀O₈, were used for soft-landing experiments on a metallic or matrix coated surface using fast atom bombardment mass spectrometry. Soft-landing can be achieved at impact energies below 180 eV with no production of fragments. The deposition rate shows strong energy dependence with similar behavior of the different organic compounds. A single isotope of the molecule was selected and soft-landed at increased resolution.

Keywords: soft-landing, fast atom bombardment, mass spectrometry, polyphenylene, dendronized perylenes, perylene derivative

You can buy this paper on-line in PDF format; it costs only £11.75. Just click on the BUY on-line button. You can pay on-line through a secure server and get access immediately.