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List of works by Gert Von Helden

Amide-I and -II vibrations of the cyclic beta-sheet model peptide gramicidin S in the gas phase

scientific article published in February 2010

An Intrinsic Hydrophobicity Scale for Amino Acids and Its Application to Fluorinated Compounds

scientific article published on 10 May 2019

An experimental value for the B(1u) C-H stretch mode in benzene

scientific article published in May 2006

An infrared spectroscopy approach to follow β-sheet formation in peptide amyloid assemblies

scientific article published on 26 September 2016

Analyzing the higher order structure of proteins with conformer-selective ultraviolet photodissociation

scientific article published on 27 April 2015

Anharmonic midinfrared vibrational spectra of benzoic acid monomer and dimer.

scientific article published in July 2005

Annulative π-Extension of Unactivated Benzene Derivatives through Nondirected C-H Arylation

scientific article published on 12 August 2019

Assessing the stability of alanine-based helices by conformer-selective IR spectroscopy

scientific article published on 11 July 2016

Catching proteins in liquid helium droplets.

scientific article published on 24 September 2010

Characterization of a trans-trans Carbonic Acid-Fluoride Complex by Infrared Action Spectroscopy in Helium Nanodroplets

scientific article published on 27 March 2019

Charge-Induced Unzipping of Isolated Proteins to a Defined Secondary Structure

scientific article published on 05 February 2016

Charge-state resolved mid-infrared spectroscopy of a gas-phase protein.

scientific article published in April 2005

Cold collisions catalyse conformational conversion.

scientific article published on 8 June 2007

Conformation of macromolecules in the gas phase: use of matrix-assisted laser desorption methods in ion chromatography.

scientific article

Conformations and vibrational spectra of a model tripeptide: change of secondary structure upon micro-solvation

scientific article published in April 2010

Direct Experimental Characterization of the Ferrier Glycosyl Cation in the Gas Phase

scientific article published on 05 November 2020

Direct observation of size dependent activation of NO on gold clusters.

scientific article published in December 2005

Evidence from ion chromatography experiments that met-cars are hollow cage clusters.

scientific article

Exploring the conformational preferences of 20-residue peptides in isolation: Ac-Ala19-Lys + H(+)vs. Ac-Lys-Ala19 + H(+) and the current reach of DFT.

scientific article published in March 2015

Fingerprint IR Spectroscopy to Probe Amino Acid Conformations in the Gas Phase

scientific article published on 12 November 2003

Folding structures of isolated peptides as revealed by gas-phase mid-infrared spectroscopy

scientific article published in January 2005

From Compact to String-The Role of Secondary and Tertiary Structure in Charge-Induced Unzipping of Gas-Phase Proteins

scientific article published on 5 December 2016

Fucose Migration in Intact Protonated Glycan Ions - A Universal Phenomenon in Mass Spectrometry

scientific article published on 24 April 2018

Gas-phase IR spectroscopy of anionic iron carbonyl clusters

scientific article published on 01 November 2004

Gas-phase ion chromatography: transition metal state selection and carbon cluster formation

scientific article published on 01 June 1993

Gas-phase microsolvation of ubiquitin: investigation of crown ether complexation sites using ion mobility-mass spectrometry ⬇️

scientific article published on 5 August 2016

Glycan Fingerprinting via Cold-Ion Infrared Spectroscopy

scientific article published on 17 May 2017

Gold cluster carbonyls: saturated adsorption of CO on gold cluster cations, vibrational spectroscopy, and implications for their structures

scientific article published in June 2005

Gold cluster carbonyls: vibrational spectroscopy of the anions and the effects of cluster size, charge, and coverage on the CO stretching frequency.

scientific article published in December 2005

Ground-State Structure of the Proton-Bound Formate Dimer by Cold-Ion Infrared Action Spectroscopy

scientific article published on 12 July 2018

How cations change peptide structure.

scientific article

IR spectroscopy of gas-phase C60-.

scientific article published on 9 October 2008

IR spectroscopy of protonated leu-enkephalin and its 18-crown-6 complex embedded in helium droplets

scientific article published on 3 August 2015

Infrared fingerprint spectroscopy and theoretical studies of potassium ion tagged amino acids and peptides in the gas phase.

scientific article published in June 2005

Infrared multiphoton ionization of superhot C60: experiment and model calculations.

scientific article published in May 2006

Infrared spectroscopy of gas-phase Cr+ coordination complexes: determination of binding sites and electronic states.

scientific article

Infrared spectroscopy of gas-phase zirconium oxide clusters

scholarly article by Gert Von Helden et al published December 2000 in Chemical Physics

Infrared spectroscopy of neutral C7H7 isomers: benzyl and tropyl.

scientific article published in December 2003

Infrared spectroscopy of niobium oxide cluster cations in a molecular beam: identifying the cluster structures.

scientific article

Infrared spectroscopy of phenylalanine Ag(I) and Zn(II) complexes in the gas phase.

scientific article published in January 2006

Infrared spectrum and structure of the homochiral serine octamer-dichloride complex.

scientific article

Intensity-resolved IR multiple photon ionization and fragmentation of C60.

scientific article

Internal proton transfer leading to stable zwitterionic structures in a neutral isolated peptide

scientific article published in March 2010

Ion mobility-mass spectrometry and orthogonal gas-phase techniques to study amyloid formation and inhibition

scientific article published on 23 March 2017

Isomer selective infrared spectroscopy of neutral metal clusters.

scientific article published in March 2005

Isomers of Small Carbon Cluster Anions: Linear Chains with up to 20 Atoms

scientific article published on 01 February 1993

Mid-IR spectra of different conformers of phenylalanine in the gas phase.

scientific article

Mid-infrared spectroscopy of protected peptides in the gas phase: a probe of the backbone conformation.

scientific article published in March 2006

NFGAIL Amyloid Oligomers: The Onset of Beta-Sheet Formation and the Mechanism for Fibril Formation

scientific article published on 13 December 2017

Native like helices in a specially designed β peptide in the gas phase

scientific article published on February 2015

Online monitoring the isomerization of an azobenzene-based dendritic bolaamphiphile using ion mobility-mass spectrometry

scientific article published in May 2015

Photodissociation of conformer-selected ubiquitin ions reveals site-specific cis/trans isomerization of proline peptide bonds

scientific article

Photoexcitation of mass/charge selected hemin+, caught in helium nanodroplets.

scientific article

Plate-height model of ion mobility-mass spectrometry

scientific article published on 27 July 2020

Probing the conformational landscape and thermochemistry of DNA dinucleotide anions via helium nanodroplet infrared action spectroscopy

scientific article published on 14 August 2020

Probing the glycosidic linkage: UV and IR ion-dip spectroscopy of a lactoside.

scientific article

Probing the vibrations of shared, OH+O-bound protons in the gas phase

scientific article published on 01 May 2004

Protein Structure in the Gas Phase: The Influence of Side-Chain Microsolvation ⬇️

scientific article published on January 18, 2013

Protomers of benzocaine: solvent and permittivity dependence

scientific article published on 17 March 2015

Publisher Correction: Unravelling the structure of glycosyl cations via cold-ion infrared spectroscopy

scientific article published in Nature Communications

Remote Participation during Glycosylation Reactions of Galactose Building Blocks: Direct Evidence from Cryogenic Vibrational Spectroscopy

scientific article published on 02 March 2020

Resonant infrared laser-induced desorption of methane condensed on NaCl(100): isotope mixture experiments.

scientific article published in January 2006

Retention of Native Protein Structures in the Absence of Solvent: A Coupled Ion Mobility and Spectroscopic Study

scientific article published on 22 August 2016

Secondary Structure of Ac-Alan-LysH+ Polyalanine Peptides (n = 5,10,15) in Vacuo: Helical or Not?

Selector for structural isomers of neutral molecules

scientific article published on 2 April 2008

Size and charge effects on the binding of CO to late transition metal clusters.

scientific article published in May 2006

Spectroscopic evidence for gas-phase formation of successive beta-turns in a three-residue peptide chain

scientific article

Stacking Geometries of Early Protoporphyrin IX Aggregates Revealed by Gas-Phase Infrared Spectroscopy.

scientific article

Stark effect in the benzene dimer

scientific article

Structure Determination of Isolated Metal Clusters via Far-Infrared Spectroscopy

scientific article

Structure determination of gas-phase niobium and tantalum carbide nanocrystals via infrared spectroscopy

scientific article published on 12 June 2002

Structure determination of small vanadium clusters by density-functional theory in comparison with experimental far-infrared spectra

scientific article published in March 2005

Structure of the benzene dimer--governed by dynamics.

scientific article

The Structure of the Protonated Serine Octamer

scientific article published on 11 April 2018

The far-infrared spectra of neutral and cationic niobium clusters: Nb5 0/+ to Nb9 0+.

scientific article published in December 2007

The gas-phase dipeptide analogue acetyl-phenylalanyl-amide: a model for the study of side chain/backbone interactions in proteins

scientific article published on 01 June 2005

The impact of environment and resonance effects on the site of protonation of aminobenzoic acid derivatives.

scientific article published in September 2016

The infrared absorption spectrum of the gas phase neutral benzoic acid monomer and dimer

The mid-IR absorption spectrum of gas-phase clusters of the nucleobases guanine and cytosine

The mid-IR spectra of 9-ethyl guanine, guanosine, and 2-deoxyguanosine

scientific article published on 11 July 2007

The site of Cr+ attachment to gas-phase aniline from infrared spectroscopy

scientific article

The structures of small iron-carbon cluster anions. Linear to planar to three-dimensional

The structures of vanadium oxide cluster-ethene complexes. A combined IR multiple photon dissociation spectroscopy and DFT calculation study

scientific article published on 01 December 2003

Unraveling the internal dynamics of the benzene dimer: a combined theoretical and microwave spectroscopy study.

scientific article

Unravelling the structure of glycosyl cations via cold-ion infrared spectroscopy

scientific article published in Nature Communications

Vibration-rotation-tunneling states of the benzene dimer: an ab initio study.

scientific article published on 20 May 2010

Vibrational Spectroscopy of Fluoroformate, FCO2-, Trapped in Helium Nanodroplets

scientific article published on 18 April 2018

Vibrational spectroscopy of CO in gas-phase rhodium cluster-CO complexes

scientific article published on 01 September 2003

Vibrational spectroscopy of a non-aromatic amino acid-based model peptide: identification of the gamma-turn motif of the peptide backbone

scientific article published in January 2005

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