Original scientific paper

Isotope Effect in the Gas Phase Reaction of Pyrene-d₁₀ with Nb+ Ions

Saša Kazazić ; Laboratory for Chemical Kinetics and Atmospheric Chemistry, Rugjer Bošković Institute, HR-10002 Zagreb, Croatia
Leo Klasinc ; Laboratory for Chemical Kinetics and Atmospheric Chemistry, Rugjer Bošković Institute, HR-10002 Zagreb, Croatia
Marko Rožman ; Laboratory for Chemical Kinetics and Atmospheric Chemistry, Rugjer Bošković Institute, HR-10002 Zagreb, Croatia
Dunja Srzić ; Laboratory for Chemical Kinetics and Atmospheric Chemistry, Rugjer Bošković Institute, HR-10002 Zagreb, Croatia
Jan von Knop ; Rechenzentrum der Universität Düsseldorf, D-2 Düsseldorf, Germany

Abstract

The deuterium isotope effect in the gas phase ligation of niobium (Nb) monocations by a mixture of pyrene and perdeutero pyrene was studied in a FTMS instrument. The attachment of pyrene (pyrene-d₁₀) is followed by a rapid release of hydrogen (deuterium) from the Nb-pyrene (Nb-pyrene-d₁₀) cation, respectively. The dehydrogenated product formation depends on the experimental conditions in the reaction chamber. A 1,2-elimination of H₂ (D₂) from the ligation product is proposed.

Keywords

gas phase reaction; Fourier transform mass spectrometry; deuterium kinetic isotope effect; niobium (II); pyrene; pyrene-d₁₀

Hrčak ID:

102723

URI

https://hrcak.srce.hr/102723

Publication date:

31.5.2004.

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