A novel design of a temperature-controlled FT-ICR cell for low-temperature black-body infrared radiative dissociation (BIRD) studies of hydrated ions

O. Petru Balaj, Christian B. Berg, Stephan J. Reitmeier, Vladimir E. Bondybey, Martin K. Beyer

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

A novel design for a temperature-controlled ICR cell is described for use in black-body infrared radiative dissociation (BIRD) studies of weakly bound systems like water clusters. Due to several improved design features, it provides a very uniform black-body radiation environment, and at the same time maintains efficient pumping for a low collision rate on the order of 10-2 s-1. At the lowest temperatures reached, nominally 89 K cell plate temperature, water evaporation effectively ceases, while intracluster reactions in V+(H2O)n with a small activation energy are still observed. BIRD rate constants for Ag+(H2O)n, n = 4-6, are shown in the temperature range T = 160-320 K. For n = 6, a linear Arrhenius plot with R2 = 0.9943 is obtained without any calibration, confirming the suitability of the cell for quantitative BIRD studies.

Original languageEnglish
Pages (from-to)5-9
Number of pages5
JournalInternational Journal of Mass Spectrometry
Volume279
Issue number1
DOIs
StatePublished - 1 Jan 2009

Keywords

  • Black-body radiation
  • FT-ICR mass spectrometry
  • Intracluster reactions
  • Molecular clusters

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