Area of research
Spectroscopy · Organic Chemistry
Research interest
Research interests include Mass Spectrometry Techniques and Applications, Analytical Chemistry and Chromatography, Radical Photochemical Reactions, and Advanced Chemical Physics Studies.
Competition between Charge- and Radical-Driven Dissociations in the Molecular Radical Cations of Tripeptides
Understanding the Binding and Structures in Model Complexes of Polypeptides and Cofactors
Structure and fragmentation chemistry of the peptide radical cations of glycylphenylalanylglycine (GFG)
Phosphate Migration versus the Loss of Phosphoric Acid in Protonated Phosphopeptides: A Computational Study
Large-scale characterization of cocaine addiction-like behaviors reveals that escalation of intake, aversion-resistant responding, and breaking-points are highly correlated measures of the same construct
Generation, Characterization, and Dissociation of Radical Cations Derived from Prolyl-glycyl-glycine
Cations Derived from Fentanyls Generated by Atmospheric Pressure Photoionization in the Presence of Ammonia: An IMS-MS Study
Collision-induced dissociation of protonated fentanyl: A DFT study
Dissociative electron transfer of copper(<scp>ii</scp>) complexes of glycyl(glycyl/alanyl)tryptophan<i>in vacuo</i>: IRMPD action spectroscopy provides evidence of transition from zwitterionic to non-zwitterionic peptide structures
Structures of [GPGG + H – H2O]+ and [GPGG + H – H2O – NH CH2]+ ions; evidence of rearrangement prior to dissociation
Structures and Dissociation Products of Ce/Peptide Complexes: Competition between Coordination and Charge Delocalization
Doubly Charged Small Organic Fragments Derived from [Ce(tripeptide)(CH<sub>3</sub>CN)<i><sub>m</sub></i>]<sup>3+</sup> Complexes: Observation of the Elusive [b<i><sub>n</sub></i> + H]<sup>2+</sup> Ions
Hydrogen atom transfer in the radical cations of tryptophan-containing peptides AW and WA studied by mass spectrometry, infrared multiple-photon dissociation spectroscopy, and theoretical calculations
Loss of water from protonated polyglycines: interconversion and dissociation of the product imidazolone ions
Imidazolone formation from protonated tetrapeptides: Effects of replacing a glycine by an alanine or proline residue
Dissociation of [b5 – H]+ ions composed of one α-methyltryptophan and four alanine residues: The effect of the α-methyl group
Interconversion between 4-Imidazolone Ions; Isomers of [b<sub>4</sub>]<sup>+</sup> Derived from Protonated Tetraglycine
Hydrogen atom transfer in metal ion complexes of the glutathione thiyl radical
Isomerization versus dissociation of phenylalanylglycyltryptophan radical cations
Dissociation of [b5]+ ions containing an α-methyltryptophan and four alanine residues; losses of CO2 and the oxazolone ring
Cysteine Radical/Metal Ion Adducts: A Gas‐Phase Structural Elucidation and Reactivity Study
Nucleophilic substitution by amide nitrogen in the aromatic rings of [z<sub>n</sub>− H]˙<sup>+</sup>ions; the structures of the [b<sub>2</sub>− H − 17]˙<sup>+</sup>and [c<sub>1</sub>− 17]<sup>+</sup>ions
Radical-induced dissociation leading to the loss of CO<sub>2</sub>from the oxazolone ring of [b<sub>5</sub>− H]˙<sup>+</sup>ions
Proposed nomenclature for peptide ion fragmentation
Alkali‐Metal‐Ion‐Assisted Hydrogen Atom Transfer in the Homocysteine Radical
Investigation of Fragmentation of Tryptophan Nitrogen Radical Cation
Radical-induced, proton-transfer-driven fragmentations in [b<sub>5</sub> − H]˙<sup>+</sup> ions derived from pentaalanyl tryptophan
Fragmentation of Peptide Radical Cations Containing a Tyrosine or Tryptophan Residue: Structural Features That Favor Formation of [<i>x</i><sub>(<i>n</i>–1)</sub> + H]<sup>•+</sup> and [<i>z</i><sub>(<i>n</i>–1)</sub> + H]<sup>•+</sup> Ions
Metal Ion Complexes with HisGly: Comparison with PhePhe and PheGly
Structure and Reactivity of the Distonic and Aromatic Radical Cations of Tryptophan