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Peptide radicals and cation radicals in the gas phase
For about three decades, the chemistry of cation radicals derived from organic molecules
had received a major impetus from mass spectrometry. This was because cation radicals …
had received a major impetus from mass spectrometry. This was because cation radicals …
Isotopic labelling in mass spectrometry as a tool for studying reaction mechanisms of ion dissociations
JL Holmes, KJ Jobst, JK Terlouw - Journal of Labelled …, 2007 - Wiley Online Library
Perhaps the greatest influence that isotopic labelling experiments have had on organic
mass spectrometry is that reaction mechanisms originally borrowed from the chemistry of …
mass spectrometry is that reaction mechanisms originally borrowed from the chemistry of …
Infrared spectroscopy of [H 2 O–X n]+(n= 1–3, X= N 2, CO 2, CO, and N 2 O) radical cation clusters: competition between hydrogen bond and hemibond formation of …
M Kominato, A Fujii - Physical Chemistry Chemical Physics, 2023 - pubs.rsc.org
The water radical cation H2O+ is an important intermediate in radiation chemistry and
radiobiology, and its role in radical reactions has recently attracted much attention. However …
radiobiology, and its role in radical reactions has recently attracted much attention. However …
Infrared vibrational spectra as a structural probe of gaseous ions formed by caffeine and theophylline
Ionic hydrogen bond (IHB) interactions, resulting from the association of ammonia and the
two protonated methylxanthine derivatives, caffeine and theophylline, have been …
two protonated methylxanthine derivatives, caffeine and theophylline, have been …
Carboxyl-catalyzed prototropic rearrangements in histidine peptide radicals upon electron transfer: effects of peptide sequence and conformation
We report an unusual prototropic rearrangement in gas-phase radicals formed by collisional
electron transfer from cesium atoms to protonated peptides HAL, AHL, and ALH at 50 keV …
electron transfer from cesium atoms to protonated peptides HAL, AHL, and ALH at 50 keV …
The covalently bound HNC dimer ion HNCCNH+ has a kinetically stable neutral counterpart
KJ Jobst, MR Hanifa, JK Terlouw - Chemical Physics Letters, 2008 - Elsevier
Neutralization-reionization mass spectrometry (NRMS) and computational chemistry (CBS-
QB3/APNO methods) have been used to show that HNCCNH (ethenediimine) and its isomer …
QB3/APNO methods) have been used to show that HNCCNH (ethenediimine) and its isomer …
The acrylonitrile dimer ion: A study of its dissociation via self-catalysis, self-protonation and cyclization into the pyrimidine radical cation
HK Ervasti, KJ Jobst, PC Burgers, PJA Ruttink… - International Journal of …, 2007 - Elsevier
Large energy barriers prohibit the rearrangement of solitary acrylonitrile ions, CH2CHCN+,
into their more stable hydrogen-shift isomers CH2CCNH+ or CHCH–CNH+. This prompted …
into their more stable hydrogen-shift isomers CH2CCNH+ or CHCH–CNH+. This prompted …
The acid-catalyzed rearrangement CH3O→ CH2OH and its involvement in the dissociation of the methanol dimer radical cation: A Quid pro Quo reaction
PC Burgers, PJA Ruttink - International Journal of Mass Spectrometry, 2005 - Elsevier
The barrier for the radical isomerization CH3O→ CH2OH is calculated by CBS-QB3 to be
29.7 kcalmol− 1 and lies higher (by 5.7 kcalmol− 1) than the dissociation limit CH2O+ H …
29.7 kcalmol− 1 and lies higher (by 5.7 kcalmol− 1) than the dissociation limit CH2O+ H …
The covalently bound dimer ion HCNCNH+ and its neutral counterpart
KJ Jobst, JK Terlouw - Chemical Physics Letters, 2010 - Elsevier
Model chemistry calculations (CBS-QB3 and CBS-APNO methods) and tandem mass
spectrometry based experiments indicate that dissociative ionization of 2-methoxy-s-triazine …
spectrometry based experiments indicate that dissociative ionization of 2-methoxy-s-triazine …
The covalently bound HCN dimer ions HCN− NCH+ and HCN− C (N) H+ are stable species in the gas-phase, but the neutral counterparts are not
KJ Jobst, MR Hanifa, PJA Ruttink, JK Terlouw - Chemical Physics Letters, 2009 - Elsevier
Tandem mass spectrometry based experiments and computational chemistry (CBS-
QB3/APNO methods) indicate that ionized s-tetrazine eliminates N2 to yield the elusive …
QB3/APNO methods) indicate that ionized s-tetrazine eliminates N2 to yield the elusive …