Energetics and Structures of Gas Phase Ions: Macromolecules, Clusters and Ligated Transition Metals

1999 ◽  
pp. 235-258 ◽  
Author(s):  
Michael T. Bowers ◽  
Paul R. Kemper ◽  
Petra Koppen ◽  
Thomas Wyttenbach ◽  
Catherine J. Carpenter ◽  
...  
Keyword(s):  
Transition Metals ◽  
Gas Phase ◽  
Gas Phase Ions

Ion chemistry of second-row transition metals in hydrocarbon flames: cations and anions of Y, Zr, Nb, and Mo

1995 ◽  
Vol 73 (12) ◽  
pp. 2263-2271 ◽  
Author(s):  
Christine C.Y. Chow ◽  
John M. Goodings
Keyword(s):  
Transition Metals ◽  
Gas Phase ◽  
Atmospheric Pressure ◽  
Chemical Ionization ◽  
Negative Ions ◽  
Ion Concentration ◽  
Oxidation States ◽  
Metallic Ions ◽  
Ion Chemistry ◽  
Hydrocarbon Flames

A pair of laminar, premixed, CH4–O2 flames above 2000 K at atmospheric pressure, one fuel-rich (FR) and the other fuel-lean (FL), were doped with ~10−6 mol fraction of the second-row transition metals Y, Zr, Nb, and Mo. Since these hydrocarbon flames contain natural ionization, metallic ions were produced in the flames by the chemical ionization (CI) of metallic neutral species, primarily by H3O+ and OH− as CI sources. Both positive and negative ions of the metals were observed as profiles of ion concentration versus distance along the flame axis by sampling the flames through a nozzle into a mass spectrometer. For yttrium, the observed ions include the YO+•nH2O (n = 0–3) series, and Y(OH)4−. With zirconium, they include the ZrO(OH)+•nH2O (n = 0–2) series, and ZrO(OH)3−. Those observed with niobium were the cations Nb(OH)3+ and Nb(OH)4+, and the single anion NbO2(OH)2−. For molybdenum, they include the cations MoO(OH)2+ and MoO(OH)3+, and the anions MoO3− and MoO3(OH)−. Not every ion was observed in each flame; the FL flame tended to favour the ions in higher oxidation states. Also, flame ions in higher oxidation states were emphasized for these second-row transition metals compared with their first-row counterparts. Some ions written as members of hydrate series may have structures different from those of simple hydrates; e.g., YO+•H2O = Y(OH)2+ and ZrO(OH)+•H2O = Zr(OH)3+, etc. The ion chemistry for the production of these ions by CI in flames is discussed in detail. Keywords: transition metals, ions, flame, gas phase, negative ions.

Infrared fluorescence relaxation of photoexcited gas‐phase ions by chopped‐laser two‐photon dissociation

1987 ◽  
Vol 86 (4) ◽  
pp. 2081-2086 ◽  
Author(s):  
Robert C. Dunbar ◽  
Jyh Horung Chen ◽  
Hun Young So ◽  
Bruce Asamoto
Keyword(s):  
Gas Phase ◽  
Two Photon ◽  
Gas Phase Ions

Lanthanide thermodynamic predictions. 6. Thermodynamics of gas-phase ions and revised enthalpy equations for solids at 298.15 K

1985 ◽  
Vol 89 (15) ◽  
pp. 3310-3316 ◽  
Author(s):  
Steven G. Bratsch ◽  
J. J. Lagowski
Keyword(s):  
Gas Phase ◽  
Gas Phase Ions

Gas-phase high-temperature photoelectron spectroscopy: an investigation of the transition metals iron, cobalt and nickel

1982 ◽  
Vol 15 (24) ◽  
pp. 4523-4534 ◽  
Author(s):  
J M Dyke ◽  
B W J Gravenor ◽  
R A Lewis ◽  
A Morris
Keyword(s):  
High Temperature ◽  
Transition Metals ◽  
Gas Phase ◽  
Photoelectron Spectroscopy ◽  
Iron Cobalt ◽  
Cobalt And Nickel

Mass spectrometry of π-complexes of transition metals. XXIII. The ions [C5H5EIV]+ in the gas phase. Synthesis and structure

1981 ◽  
Vol 205 (2) ◽  
pp. 157-160 ◽  
Author(s):  
Yu.S. Nekrasov ◽  
V.F. Sizoi ◽  
D.V. Zagorevskii ◽  
Yu.A. Borisov
Keyword(s):  
Mass Spectrometry ◽  
Transition Metals ◽  
Gas Phase ◽  
Phase Synthesis ◽  
Gas Phase Synthesis ◽  
Complexes Of Transition Metals

scholarly journals Collision-Induced Unfolding of Partially Metalated Metallothionein-2A: Tracking Unfolding Reactions of Gas-Phase Ions

2018 ◽  
Vol 90 (20) ◽  
pp. 11856-11862 ◽  
Author(s):  
Shiyu Dong ◽  
Nicole D. Wagner ◽  
David H. Russell
Keyword(s):  
Gas Phase ◽  
Gas Phase Ions ◽  
Collision Induced Unfolding

Interaction of electromagnetic radiation with gas-phase ions

2007 ◽  
pp. 100-117 ◽  
Author(s):  
R. C. Dunbar
Keyword(s):  
Electromagnetic Radiation ◽  
Gas Phase ◽  
Gas Phase Ions

MULTIPHOTON DISSOCIATION OF GAS PHASE IONS USING LOW INTENSITY CW LASER RADIATION

1979 ◽  
pp. 355-388 ◽  
Author(s):  
R.L. Woodin ◽  
D.S. Bomse ◽  
J.L. Beauchamp
Keyword(s):  
Laser Radiation ◽  
Gas Phase ◽  
Low Intensity ◽  
Cw Laser ◽  
Gas Phase Ions ◽  
Multiphoton Dissociation
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