TY - JOUR
T1 - A novel design of a temperature-controlled FT-ICR cell for low-temperature black-body infrared radiative dissociation (BIRD) studies of hydrated ions
AU - Balaj, O. Petru
AU - Berg, Christian B.
AU - Reitmeier, Stephan J.
AU - Bondybey, Vladimir E.
AU - Beyer, Martin K.
N1 - Funding Information:
Financial support from the Deutsche Forschungsgemeinschaft, the Fonds der Chemischen Industrie, and the European Union in the Research Training Network “Reactive Intermediates Relevant in Atmospheric Chemistry and Combustion” as well as financial support in form of equipment from Bruker Daltonics is gratefully acknowledged. We thank Mirko Gruber and Matthias Stecher for their contribution to data acquisition.
PY - 2009/1/1
Y1 - 2009/1/1
N2 - 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.
AB - 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.
KW - Black-body radiation
KW - FT-ICR mass spectrometry
KW - Intracluster reactions
KW - Molecular clusters
UR - http://www.scopus.com/inward/record.url?scp=56949101181&partnerID=8YFLogxK
U2 - 10.1016/j.ijms.2008.09.001
DO - 10.1016/j.ijms.2008.09.001
M3 - Article
AN - SCOPUS:56949101181
SN - 1387-3806
VL - 279
SP - 5
EP - 9
JO - International Journal of Mass Spectrometry
JF - International Journal of Mass Spectrometry
IS - 1
ER -