The thermochemical properties of melamine and cyanuric acid were characterized using
mass spectrometry measurements along with computational studies. A triple-quadrupole …

The proton affinity of proline analogs, L-azetidine-2-carboxylic acid (Aze), L-proline (Pro),
and L-pipecolic acid (Pip), have been measured using the Armentrout modification of the …

Ion–molecule reactions occurring in a pentaquadrupole mass spectrometer are used to
generate and characterize ions in which one or two pyridine molecules are bound by a+ CN …

The gas-phase acidities of four cysteine-polyalanine peptides, A3, 4CSH and HSCA3, 4,
were determined using the extended Cooks kinetic method with full entropy analysis. A triple …

The gas-phase basicities of serine and dipeptides containing amino acid residues of serine
and glycine were determined by proton transfer reactions in a Fourier transform ion cyclotron …

The gas phase acidities of 19 α amino acids have been determined using the kinetic method
of Cooks and co-workers [RG Cooks and TL Kruger, J. Am. Chem. Soc., 99 (1977) 1279; SA …

Proton-bound dimers of amines fragment to give the individual protonated bases in
proportions which depend upon the proton affinities of the amines, the collision energy, and …

Gas-phase acidities (GA or ΔGacid) for the two most acidic common amino acids, aspartic
acid and glutamic acid, have been determined for the first time. Because of the amide …

The kinetic method was applied to the estimation of the gas‐phase acidity of urea by
generating proton‐bound dimeric anions comprised of urea and various reference …

The gas‐phase basicity (GB) of proline, which is the only imino acid and is reported to play a
significant role in protein folding, was determined by deprotonation reactions in a Fourier …