Variable-temperature ion mobility time-of-flight mass spectrometry studies of electronic isomers of Kr2+ and CH3OH*+ radical cations. Conference Paper

abstract

• Preliminary results from a liquid nitrogen-cooled ion mobility (IM) orthogonal-time-of-flight (o-ToF) mass spectrometer applied to the separation of electronic isomers of Kr2+ and methanol radical cations (conventional and distonic) are presented. Ab initio calculations were used to estimate the energies and energy barriers to interconversion between conventional (CH3OH*+) and distonic (CH2*OH2+) radical cations. In addition, computations and experiments are used to compare ion-neutral collision cross-sections for CH3OH*+ and CH2*OH2+ radical cations and suggest that the mobility separation is achieved by ion-neutral interactions between ions and neutral buffer gas.

authors

• Russell, David

published proceedings

• Eur J Mass Spectrom (Chichester)

author list (cited authors)

• Verbeck, G. F., Gillig, K. J., & Russell, D. H.

citation count

• 13

complete list of authors

• Verbeck, GF||Gillig, KJ||Russell, DH

publication date

• December 2003

publisher

• SAGE Publications  Publisher

published in

• n1469-0667ISSN  Journal

keywords

• Charge Exchange
• Distonic
• Ion Mobility
• Liquid Nitrogen-cooled
• Variable Temperature

PubMed Central ID

• 15100468

Digital Object Identifier (DOI)

• 10.1255/ejms.591

start page

• 579

end page

• 587

volume

• 9

issue

• 6

URL

• http://dx.doi.org/10.1255/ejms.591