Observation and characterization of the CH5 radical by neutralized ion beam techniques

Abstract

Articles you may be interested inMass spectrometric detection of neutral radicals in a CH4 microwave discharge by use of Li+ ion attachment techniques Stability of the ammonium and methylammonium radicals from neutralized ionbeam spectroscopy The CHs (CDs) radical has been produced by charge transfer neutralization of fast ion beams using Na and Zn targets. The results obtained with Na targets are in excellent agreement with previous similar studies using alkali metal targets. In particular, no evidence for metastability was observed. Alternatively, results obtained with Zn targets show clear evidence for production of metastable states of the radical with lifetimes in the 1-10 /1-s range. Measurement of the kinetic energy released upon dissociation indicates that some neutral radicals produced in CHl (CDs+ )/Zn reactions have energies very close to the ionization limit. It is proposed that the observed metastability may be explained by the production of high Rydberg levels of the radical having sufficiently long radiative lifetimes.5804

Computational chemistry: A useful (sometimes mandatory) tool in mass spectrometry studies

“…Nevertheless, it was also found that this movement was concerted to some extent. It is worth mentioning that the corresponding neutral system CH 5 • was observed and characterized by charge transfer neutralization of fast ion beams by using Na and Zn as targets (Selgren & Gellene, 1987). …”

Dissociation Dynamics of Isotopologs of CH5 Studied by Charge Exchange of CH5+ with Cs and Quasiclassical Trajectory Calculations

“…The transient CH 5 neutral has also been studied by neutralization reionization mass spectrometry, – where CH 5 + was neutralized using an electron-donating species and the identity of the dissociation products were measured by mass spectrometry. The work presented here is similar in that CH 5 is formed by electron transfer from Cs, but the products are measured in coincidence, allowing for a complete kinematic description of the two-body dissociation along with branching fractions for each product channel.…”