Journal article

Multiply protonated betaine clusters are stable in the gas phase

Linda Feketeova, Richard AJ O'Hair

CHEMICAL COMMUNICATIONS | ROYAL SOC CHEMISTRY | Published : 2008

Abstract

Multiply protonated clusters of betaine are formed via electrospray ionisation and fragment via competitive betaine neutral loss and charge separation; theoretical calculations suggest the [M(n)+2H](2+) ions consist of a [M(2)+2H](2+) core based on the hydrogen bonded carboxylic acid dimer.

University of Melbourne Researchers

Grants

Funding Acknowledgements

We acknowledge financial support from ARC (CoE program for RAJO and IF for LF) and funding from the ARC and the VICS for the purchase of the LTQ-FT mass spectrometer. Support of the VICS High Performance Computing Facility is gratefully acknowledged. We thank Prof. Evan Bieske and Dr Tom Waters for useful discussions.