Ion-molecule clustering thermochemistry by laser ionization high-pressure mass spectrometry
Journal Article
·
· Journal of Physical Chemistry; (USA)
- Univ. of California, Los Angeles (USA)
- Univ. of Canterbury, Christchurch (New Zealand)
A laser ionization source has been developed and applied to measure the equilibrium thermochemistry of the clustering of neutral molecules with atomic metal ions. This high-pressure mass spectrometric method enables cluster association reactions to be studied at pressures that ensure both atomic ion thermalization and collisional stabilization of the nascent cluster ions. Initial application to the thermochemical properties of the association reactions of Cu{sup +} with Kr, N{sub 2} (up to five molecules), H{sub 2}O, CH{sub 3}OH, and CH{sub 3}COCH{sub 3} is described. The binding energies for Cu{sup +}{center dot}Kr and Cu{sup +}{center dot}N{sub 2} are similar to the analogous Na{sup +} complexes, as expected from predominantly electrostatic interactions. The binding energies show reasonable variations with the proton affinity of the molecule.
- OSTI ID:
- 6972152
- Journal Information:
- Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 93:24; ISSN 0022-3654; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360000 -- Materials
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400000* -- Chemistry
400201 -- Chemical & Physicochemical Properties
ALCOHOLS
CHARGED PARTICLES
CLUSTER MODEL
COLLISIONS
COPPER IONS
DATA
DATA ANALYSIS
ELEMENTS
EXPERIMENTAL DATA
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONS
MASS SPECTROSCOPY
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
METHANOL
MOLECULE COLLISIONS
NITROGEN
NONMETALS
NUCLEAR MODELS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
WATER
360000 -- Materials
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400000* -- Chemistry
400201 -- Chemical & Physicochemical Properties
ALCOHOLS
CHARGED PARTICLES
CLUSTER MODEL
COLLISIONS
COPPER IONS
DATA
DATA ANALYSIS
ELEMENTS
EXPERIMENTAL DATA
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONS
MASS SPECTROSCOPY
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
METHANOL
MOLECULE COLLISIONS
NITROGEN
NONMETALS
NUCLEAR MODELS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
WATER