Zobrazeno 1 - 10
of 14
pro vyhledávání: '"M. R. Sievers"'
Activation of C2H6, C3H8, and c-C3H6 by Gas-Phase Zr+ and the Thermochemistry of Zr−Ligand Complexes
Autor:
P. B. Armentrout, M. R. Sievers
Publikováno v:
Organometallics. 22:2599-2611
The kinetic energy dependences of the reactions of Zr + ( 4 F) with ethane, propane, and cyclopropane have been studied using guided ion beam mass spectrometry. It is found that dehydrogenation is efficient and the dominant process at low energies in
Autor:
M. R. Sievers, P. B. Armentrout
Publikováno v:
The Journal of Physical Chemistry A. 107:4396-4406
The kinetic energy dependence of the reaction of Zr + ( 4 F) with methane has been studied using guided ion beam mass spectrometry. At low energies, the only process observed is dehydrogenation, which is slightly endothermic such that it exhibits a s
Publikováno v:
Physical Review Letters. 84:3354-3357
The reconstructed anatase TiO2(001) surface has been investigated by low-energy electron diffraction (LEED), x-ray photoelectron spectroscopy (XPS), and angle-resolved mass spectroscopy of recoiled ions (AR-MSRI). Prior investigations have observed o
Publikováno v:
International Journal of Mass Spectrometry. :149-170
The kinetic energy dependence of the reactions of Nb+ (5D) with methane, ethane, and propane have been studied using guided ion beam mass spectrometry. It is found that dehydrogenation is efficient and the dominant process at low energies in all thre
Autor:
P. B. Armentrout, M. R. Sievers
Publikováno v:
Inorganic Chemistry. 38:397-402
Insight into the fundamental character of carbon dioxide activation at metal centers is studied in the gas phase using guided ion beam mass spectrometry. The reactions of Y+ and YO+ with CO2 and the reverse reactions, YO+ and YO2+ with CO, are invest
Autor:
M. R. Sievers, P. B. Armentrout
Publikováno v:
The Journal of Physical Chemistry A. 102:10754-10762
Guided ion beam mass spectrometry is used to investigate the kinetic energy dependence of the bimolecular reactions of CO2 and CO with Mo+, MoO+, and MoO2+. To obtain a more complete understanding of these systems, we probe MoO2+ and the intermediate
Autor:
P. B. Armentrout, M. R. Sievers
Publikováno v:
International Journal of Mass Spectrometry. :103-115
Guided ion beam mass spectrometry is used to investigate the kinetic energy dependence of the reactions of Nb + ( 5 D) and NbO + ( 3 Σ − ) with CO 2 , and the reverse pathways, NbO + ( 3 Σ − ) and NbO 2 + with CO. These systems exhibit complica
Alkali ion carbonyls: sequential bond energies of Li+(CO)x (x = 1−3), Na+(CO)x (x = 1, 2) and K+(CO)
Publikováno v:
International Journal of Mass Spectrometry and Ion Processes. 175:93-106
The sequential bond dissociation energies for Li+(CO)x (x = 1−3), Na+(CO)x (x = 1,2), and K+(CO) are determined by examining the collision-induced dissociation reactions with argon in a guided ion beam mass spectrometer. Analysis of the kinetic ene
Publikováno v:
Journal of the American Chemical Society. 120:1891-1899
Complexes of the first-row transition-metal cations (Ti+−Cu+) with one and two ethene molecules are studied by guided ion beam mass spectrometry. Thermalized complexes are formed in a flow tube source and examined by energy-resolved collision-induc
Publikováno v:
International Journal of Mass Spectrometry and Ion Processes. :195-212
The kinetic energy dependences of the reactions of Zr+ (4F) with ethane, propane, and cyclopropane have been studied using guided ion beam mass spectrometry. It is found that dehydrogenation is efficient and the dominant process at low energies in al