Nitrogen bases containing one or more pushing amino-group (s) directly linked to a pulling
cyano, imino, or phosphoimino group, as well as those in which the pushing and pulling …

The present article is the third part of a general overview of the gas‐phase protonation
thermochemistry of polyfunctional molecules (first part: Mass Spectrom. Rev., 2007, 26: 775 …

The proton affinities (PA) of the 20 naturally occurring α-amino acids (AA) have been
determined computationally by means of density functional theory (DFT) and high-level G2 …

The gas-phase acidities of the 20 protein amino acids (PAAs) have been determined using
an electrospray ionization–quadrupole ion trap instrument. Three different methods were …

A stable-isotope dimethyl labeling strategy was previously shown to be a useful tool for
quantitative proteomics. More recently, N-terminal dimethyl labeling was also reported for …

The proton affinities of the 20 common amino acids have been computed at the G3MP2 level
using structures derived from broad conformational searches at a variety of levels including …

Absolute 18-crown-6 (18C6) affinities of five amino acids (AAs) are determined using guided
ion beam tandem mass spectrometry techniques. The AAs examined in this work include …

The gas-phase structures of alkali-metal cationized glutamine are investigated by using both
infrared multiple photon dissociation (IRMPD) action spectroscopy, utilizing light generated …

A systematic conformational search reveals three N-(amino) and eight O-(carbonyl)
protonated glycine conformers with benchmark equilibrium (adiabatic) relative energies in …

The structures of lithiated lysine, ornithine, and related molecules, both with and without a
water molecule, are investigated using both density functional theory and blackbody infrared …