Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Mauritz Johan Ryding"'
Publikováno v:
Physical Chemistry Chemical Physics.
The reactivity of HMg+, HMgCl, and HMgCl2− in hydride transfer reactions with CO2 and CH2O were studied by means of the reverse reactions—decarboxylation of HCO2MgCln+/0/− and deformylation of CH3OMgCln+/0/− (n...
Publikováno v:
Organic & Biomolecular Chemistry. 18:9499-9510
In this paper, we present an investigation of the unimolecular dissociation of an anionic magnesium chloride squarate complex, ClMgC4O4- using mass spectrometry supported by theoretical reaction models based on quantum chemical calculations. Sequenti
Publikováno v:
International Journal of Mass Spectrometry. 440:14-19
The abundance spectrum of deuterated heavy water clusters has been measured, and relative dissociation energies were extracted from the abundances. The dissociation energies are similar to those of protonated light water clusters, except for a slight
Publikováno v:
International Journal of Mass Spectrometry. 435:129-135
Size selected O3 −(H2O)n and O2 −(H2O)n clusters with n = 0–4, produced by electrospray ionization in a corona discharge, were reacted with CH3Cl in the collision cell of a quadrupole-time-of-flight mass spectrometer under near thermal conditio
Autor:
Richard D. Thomas, Mauritz Johan Ryding, Mats Larsson, Oleksii Rebrov, Einar Uggerud, Kostiantyn Kulyk
Publikováno v:
Journal of the American Society for Mass Spectrometry
Here we report on the gas-phase interactions between protonated enantiopure amino acids (l- and d-enantiomers of Met, Phe, and Trp) and chiral target gases [(R)- and (S)-2-butanol, and (S)-1-phenylethanol] in 0.1–10.0 eV low-energy collisions. Two
Publikováno v:
European Journal of Organic Chemistry. 2017:4272-4276
Benzene formation from magnesium benzoate complexes in two steps (carboxylation followed by hydrolysis) has been studied. Detailed reaction mechanisms are proposed based on evidence from tandem mass spectrometry experiments and bimolecular gas- phase
Publikováno v:
Physical Chemistry Chemical Physics. 19:23176-23186
Reactions between water clusters containing the superoxide anion, O2˙−(H2O)n (n = 0–4), and formic acid, HCO2H, were studied experimentally in vacuo and modelled using quantum chemical methods. Encounters between microhydrated superoxide and for
Publikováno v:
The Journal of Organic Chemistry. 80:6133-6142
The effect of solvation by water molecules on the nucleophilicity of the superoxide anion, O2(•-), has been investigated in detail by mass spectrometric experiments and quantum chemical calculations, including direct dynamics trajectory calculation
Autor:
Róbert Izsák, Einar Uggerud, Simen Reine, Mauritz Johan Ryding, Patrick Merlot, Trygve Helgaker
Publikováno v:
Physical Chemistry Chemical Physics. 17:5466-5473
Abundance mass spectra, obtained upon carefully electrospraying solutions of tert-butanol (TB) in water into a mass spectrometer, display a systematic series of peaks due to mixed H(+)(TB)m(H2O)n clusters. Clusters with m + n = 21 have higher abundan
Autor:
Mauritz Johan Ryding, Johannes Niskanen, Alexandre Giuliani, Glenn B. S. Miller, Tuija Jokinen, Klavs Hansen, E. Antonsson, Knut J. Børve, Einar Uggerud, Grazieli Simões, Catalin Miron, Minna Patanen, Olle Björneholm
Publikováno v:
RSC Advances 88 (4), 47743-47751. (2014)
RSC Advances
RSC Advances, Royal Society of Chemistry, 2014, 4 (88), pp.47743-47751. ⟨10.1039/c4ra09787d⟩
RSC Advances
RSC Advances, Royal Society of Chemistry, 2014, 4 (88), pp.47743-47751. ⟨10.1039/c4ra09787d⟩
International audience; A method for spectroscopic characterization of free ionic clusters and nanoparticles utilizing X-ray synchrotron radiation is presented. We demonstrate that size-selected ammonium bisulphate cluster ions, NH4+(NH4HSO4)(n), cap