Generation and Dissociation Pathways of Singly and Doubly Protonated Bisguanidines in the Gas Phase

Abstract

Para-bisguanidinyl benzene 1 and its N-permethylated derivative 2 are both sufficiently strong bases to afford not only the monocations [1+H](+) and [2+H](+), but also the doubly protonated ions, [1+2H](2+) and [2+2H](2+), in the gas phase.

Keywords

• multiply-charged ions
• heteroalkyl side-chains
• electrospray-ionization
• reactivity
• cation
• basicity
• density
• complexes
• carbodiimide
• acetonitrile