Klaus Franzreb
Arizona State University
38 Papers
213 Citations
Klaus Franzreb is an academic researcher from Arizona State University. The author has contributed to research in topics: Ion & Mass spectrum. The author has an hindex of 12, co-authored 38 publications.
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Papers
Small silicon–oxygen dianions in the gas phase
TL;DR: In this paper, the geometrical structure of the three most abundant Si n O 2 n + 1 2 - (n = 3, 4, 5) is analyzed, and for all three dianions several stable isomers are found.
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Observation of small gas-phase metal–oxygen dianions
Klaus Franzreb,Peter Williams +1 more
TL;DR: In this paper, small metal-oxygen dianions have been produced in the gas phase by sputtering of metallic targets with simultaneous oxygen flooding, and these exotic species were observed in a mass spectrometer for ion flight times of > 10μs.
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Small gas-phase dianions of Zn3O42−, Zn4O52−, CuZn2O42−, Si2GeO62−, Ti2O52− and Ti3O72−
TL;DR: The geometrical structures of the two heptamer dianions Ti2O(5)(2-), and Zn3O(4)(2-) are investigated using ab initio methods, and the identified isomers are compared to those of the novel Ge2O (5)(1-x)Ge(x)(with x= 6.5% or 27%)) and the known Si2O
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Thermodynamic stability in transition metal-containing dicationic diatomics: Examining the case of CrO2+
TL;DR: In this article, high-level ab initio calculations were carried out to construct potential energy curves for a manifold of electronic states of the dication CrO2+ covering regions from equilibrium to the dissociation limit, thus quantifying the energy involved.
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Isotope ratio measurement with a multicollector detector on the cameca IMS nf
TL;DR: The ASU IMS 3f secondary ion microanalyzer has been converted to a multiple ion detection mass spectrometer with double focusing for three neighbouring masses as mentioned in this paper, which achieved high mass resolution for off-axis masses and an accuracy of 32 S/ 34 S isotopic ratio of ∼02%
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