منابع مشابه
Vibrational spectra of small silicon monoxide cluster cations measured by infrared multiple photon dissociation spectroscopyw
The first gas-phase infrared spectra of silicon monoxide cations (SiO)n , n = 3–5, using multiple photon dissociation in the 550–1250 cm 1 frequency range, are reported. All clusters studied here fragment via loss of a neutral SiO unit. The experimental spectra are compared to simulated linear absorption spectra from calculated low energy isomers for each cluster. This analysis indicates that a...
متن کاملVibrational spectra of small silicon monoxide cluster cations measured by infrared multiple photon dissociation spectroscopy.
The first gas-phase infrared spectra of silicon monoxide cations (SiO)(n)(+), n = 3-5, using multiple photon dissociation in the 550-1250 cm(-1) frequency range, are reported. All clusters studied here fragment via loss of a neutral SiO unit. The experimental spectra are compared to simulated linear absorption spectra from calculated low energy isomers for each cluster. This analysis indicates ...
متن کاملCharge transfer dissociation (CTD) mass spectrometry of peptide cations using kiloelectronvolt helium cations.
A kiloelectronvolt beam of helium ions is used to ionize and fragment precursor peptide ions starting in the 1+ charge state. The electron affinity of helium cations (24.6 eV) exceeds the ionization potential of protonated peptides and can therefore be used to abstract an electron from--or charge exchange with--the isolated precursor ions. Kiloelectronvolt energies are used, (1) to overcome the...
متن کاملFormation and Dissociation of Phosphorylated Peptide Radical Cations
In this study, we generated phosphoserine- and phosphothreonine-containing peptide radical cations through low-energy collision-induced dissociation (CID) of the ternary metal-ligand phosphorylated peptide complexes [Cu(II)(terpy)(p)M](·2+) and [Co(III)(salen)(p)M](·+) [(p)M: phosphorylated angiotensin III derivative; terpy: 2,2':6',2''-terpyridine; salen: N,N'-ethylenebis(salicylideneiminato)]...
متن کاملCluster self-assembly of di[gold(I)]halonium cations.
Treatment of gold(I) halide complexes of the type L-Au-X [where L = PPh(3), PEt(3) with X = Cl, Br, I, or L = 2,6-(MeO)(2)C(6)H(3)PPh(2) with X = Cl] with AgSbF(6) in the molar ratio 2:1 in dichloromethane/tetrahydrofuran at -78 degrees C affords high yields of di[gold(I)]halonium salts of the formula [X[Au(PR(3))](2)](+) SbF(6)(-) (2-8). A determination of the crystal structures of the four tr...
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ژورنال
عنوان ژورنال: The Journal of Physical Chemistry A
سال: 2020
ISSN: 1089-5639,1520-5215
DOI: 10.1021/acs.jpca.0c07208