Neutral peptides in the gas phase: conformation and aggregation issues

E Gloaguen, M Mons, K Schwing… - Chemical Reviews, 2020 - ACS Publications
Combined IR and UV laser spectroscopic techniques in molecular beams merged with
theoretical approaches have proven to be an ideal tool to elucidate intrinsic structural …

Isolated neutral peptides

E Gloaguen, M Mons - Gas-Phase IR Spectroscopy and Structure of …, 2015 - Springer
This chapter examines the structural characterisation of isolated neutral amino-acids and
peptides. After a presentation of the experimental and theoretical state-of-the-art in the field …

Investigation of the amino acids glycine, proline, and methionine by photoemission spectroscopy

O Plekan, V Feyer, R Richter, M Coreno… - The journal of …, 2007 - ACS Publications
The valence and core level photoelectron spectra of glycine, proline, and methionine in the
gas phase have been investigated by VUV and soft X-ray radiation. The outer valence band …

Guanidinium group remains protonated in a strongly basic arginine solution

B Xu, MI Jacobs, O Kostko, M Ahmed - ChemPhysChem, 2017 - Wiley Online Library
Abstract Knowledge of the acid dissociation constant of an amino acid has very important
ramifications in the biochemistry of proteins and lipid bilayers in aqueous environments …

VUV photodynamics and chiral asymmetry in the photoionization of gas phase alanine enantiomers

M Tia, B Cunha de Miranda, S Daly… - The Journal of …, 2014 - ACS Publications
The valence shell photoionization of the simplest proteinaceous chiral amino acid, alanine,
is investigated over the vacuum ultraviolet region from its ionization threshold up to 18 eV …

Calculated vertical ionization energies of the common α-amino acids in the gas phase and in solution

DM Close - The Journal of Physical Chemistry A, 2011 - ACS Publications
The vertical ionization energies of the low-lying conformers of the α-amino acids found in
proteins have been calculated. Geometry optimizations were first performed at the B3LYP/6 …

An X-ray absorption study of glycine, methionine and proline

O Plekan, V Feyer, R Richter, M Coreno… - Journal of Electron …, 2007 - Elsevier
The gas phase photoabsorption spectra of glycine, methionine and proline have been
measured at the carbon, nitrogen and oxygen K edges, and spectra have been calculated at …

A reevaluation of computed proton affinities for the common α-amino acids

S Gronert, DC Simpson, KM Conner - Journal of the American Society for …, 2009 - Springer
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 …

The local adsorption geometry and electronic structure of alanine on Cu {1 1 0}

G Jones, LB Jones, F Thibault-Starzyk, EA Seddon… - Surface science, 2006 - Elsevier
The adsorption of alanine on Cu {110} was studied by a combination of near edge X-ray
absorption fine structure (NEXAFS) spectroscopy, X-ray photoelectron spectroscopy (XPS) …

Core level study of alanine and threonine

V Feyer, O Plekan, R Richter, M Coreno… - The journal of …, 2008 - ACS Publications
Core level X-ray photoemission spectra (XPS) and near edge X-ray absorption fine structure
(NEXAFS) spectra of alanine and threonine in the gas phase have been measured at the …