scholarly journals Near edge X-ray absorption mass spectrometry of gas phase proteins: the influence of protein size

2016 ◽  
Vol 18 (37) ◽  
pp. 26213-26223 ◽  
Author(s):  
D. Egorov ◽  
L. Schwob ◽  
M. Lalande ◽  
R. Hoekstra ◽  
T. Schlathölter
Keyword(s):  
Mass Spectrometry ◽  
Gas Phase ◽  
X Ray ◽  
Protein Size ◽  
X Ray Absorption

The response of gas-phase proteins upon soft X-ray absorption depends strongly on the proteins size.

Near-Edge X-ray Absorption Mass Spectrometry of a Gas-Phase Peptide

2012 ◽  
Vol 116 (44) ◽  
pp. 10745-10751 ◽  
Author(s):  
O. González-Magaña ◽  
G. Reitsma ◽  
M. Tiemens ◽  
L. Boschman ◽  
R. Hoekstra ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Phase ◽  
X Ray ◽  
X Ray Absorption

scholarly journals The electronic structure and deexcitation pathways of an isolated metalloporphyrin ion resolved by metal L-edge spectroscopy

2021 ◽  
Vol 12 (11) ◽  
pp. 3966-3976
Author(s):  
Kaja Schubert ◽  
Meiyuan Guo ◽  
Kaan Atak ◽  
Simon Dörner ◽  
Christine Bülow ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Electronic Structure ◽  
Gas Phase ◽  
Quantum Mechanical ◽  
Quantum Mechanical Calculations ◽  
X Ray ◽  
Active Space ◽  
X Ray Absorption

Near-edge X-ray absorption mass spectrometry (NEXAMS) and restricted active space (RAS) quantum mechanical calculations at the metal L-edge reveal the electronic structure and orbital-specific deexcitation pathways of gas-phase metalloporphyrins.

GAS PHASE X-RAY ABSORPTION SPECTROSCOPY WITH AN ELECTRON YIELD DETECTOR

1986 ◽  
Vol 47 (C8) ◽  
pp. C8-149-C8-151
Author(s):  
F. W. LYTLE ◽  
R. B. GREEGOR ◽  
G. H. VIA ◽  
J. M. BROWN ◽  
G. MEITZNER
Keyword(s):  
Gas Phase ◽  
Absorption Spectroscopy ◽  
X Ray ◽  
Electron Yield ◽  
X Ray Absorption

Condensed, solution and gas phase behaviour of mono- and dinuclear 2,6-diacetylpyridine (dap) hydrazone copper complexes probed by X-ray, mass spectrometry and theoretical calculations

2013 ◽  
Vol 42 (32) ◽  
pp. 11497 ◽  
Author(s):  
Brenno A. D. Neto ◽  
Barbara F. L. Viana ◽  
Thyago S. Rodrigues ◽  
Priscila M. Lalli ◽  
Marcos N. Eberlin ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Phase ◽  
Copper Complexes ◽  
Theoretical Calculations ◽  
Phase Behaviour ◽  
X Ray

Erratum: “The C 1s and N 1s near edge x-ray absorption fine structure spectra of five azabenzenes in the gas phase” [J. Chem. Phys. 128, 044316 (2008)]

2009 ◽  
Vol 130 (16) ◽  
pp. 169902
Author(s):  
G. Vall-llosera ◽  
B. Gao ◽  
A. Kivimäki ◽  
M. Coreno ◽  
J. Álvarez Ruiz ◽  
...  
Keyword(s):  
Fine Structure ◽  
Gas Phase ◽  
Chem Phys ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption

scholarly journals Solvent-dependent nuclearity, geometry and catalytic activity of [(SPhos)Pd(Ph)Cl]2

2017 ◽  
Vol 46 (22) ◽  
pp. 7223-7231 ◽  
Author(s):  
John B. Brazier ◽  
Mark A. Newton ◽  
Elena M. Barreiro ◽  
Luis A. Adrio ◽  
Leticia Naya ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Catalytic Activity ◽  
Fine Structure ◽  
Nmr Spectroscopy ◽  
Dft Calculations ◽  
Palladium Complex ◽  
Exafs Spectroscopy ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption

The nuclearity and structures of the palladium complex [(SPhos)Pd(Ph)Cl]2 in the solid and solution states are revisited using a combination of Extended X-ray Absorption Fine Structure (EXAFS) spectroscopy, NMR spectroscopy, mass spectrometry, DFT calculations and trapping experiments.

Nitrogen speciation in fine and coarse clay fractions of a Cryoboroll - new evidence from pyrolysis-mass spectrometry and nitrogen K-edge XANES

2010 ◽  
Vol 90 (2) ◽  
pp. 309-318 ◽  
Author(s):  
P. Leinweber ◽  
G. Jandl ◽  
K -U. Eckhardt ◽  
J. Kruse ◽  
F L Walley ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Major Constituent ◽  
Organic N ◽  
Ionization Mass ◽  
Pyrolysis Mass Spectrometry ◽  
Edge Structure ◽  
X Ray ◽  
Soil Clay ◽  
New Evidence ◽  
X Ray Absorption

Soil clay fractions are usually enriched in nitrogen (N), but the chemical identity of this N is largely unknown. Therefore, we investigated organic N in fine and coarse clay of a clay-rich Cryoboroll by Curie-point pyrolysis-gas chromatography/mass spectrometry (Cp Py-GC/MS), Pyrolysis-field ionization mass spectroscopy (Py-FIMS) and synchrotron-based nitrogen K-edge X-ray absorption near edge structure (N-XANES) spectroscopy. The Cp Py-GC-MS revealed 30 structurally different N-containing compounds, such as substituted pyridines, pyrroles; pyrazines, pyrazoles, imidazoles, quinolines, side-chain N-containing benzenes, and single compounds of substituted benzotriazole, purine and indole. These accounted for about 10% of peak area in the Py-GC chromatograms. The Py-FIMS and N-XANES spectra indicated interlayer-NH4+ and revealed pyridinic and nitrilic N compounds, but disagreed in the proportions of pyrroles. All three complementary methods confirmed to different extents previous wet-chemical data on N-fractions in these samples, and provided new evidence for about 30 to 40% non-proteinaceous N as major constituent of the so-called “unknown organic N” in soil. Key words: Soil clay, organic matter, pyrolysis-mass spectrometry, synchrotron, X-ray absorption, NEXAFS

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