Dynamics of cluster dissociation following multiphoton ionization

Castleman, A W

Title: Dynamics of cluster dissociation following multiphoton ionization

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Abstract

A major advance in the study of unimolecular dissociation and the spectroscopy of clusters has become available through the use of multiphoton ionization coupled with a reflectron introduced into the drift region of a time-of-flight mass spectrometer. Using single and two-color tunable pulsed lasers, the excess energy introduced into a cluster can be well controlled. The power of this method is demonstrated by the results of recent investigations of hydrogen-bonded clusters which, following ionization, lead to an internal ion-molecule reaction, and cluster fragmentation. The role of dissociation and the influence of the thermochemical stability of cluster ions in effecting the appearance of magic numbers in certain cluster distributions is discussed. The application of this method in determining ionization potentials of probe molecules following successive clustering with a solvent species is also presented.

Authors:: Castleman, A W

Publication Date:: Wed Jan 01 00:00:00 EST 1986

Research Org.:: Pennsylvania State Univ., University Park (USA). Davey Lab.

OSTI Identifier:: 6710236

Report Number(s):: AD-A-175692/3/XAB

Resource Type:: Technical Report

Resource Relation:: Other Information: Pub. in Advances in Laser Science, ser 6, 483-487(1986)

Country of Publication:: United States

Language:: English

Subject:: 74 ATOMIC AND MOLECULAR PHYSICS; MOLECULES; DISSOCIATION; MULTI-PHOTON PROCESSES; PHOTOIONIZATION; DYNAMICS; DISTRIBUTION; FRAGMENTATION; HYDROGEN; IONIZATION; IONS; MASS SPECTROMETERS; PHOTONS; SOLVENTS; SPECTROSCOPY; STABILITY; CHARGED PARTICLES; ELEMENTARY PARTICLES; ELEMENTS; MASSLESS PARTICLES; MEASURING INSTRUMENTS; MECHANICS; NONMETALS; SPECTROMETERS; 640304* - Atomic, Molecular & Chemical Physics- Collision Phenomena

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                    Castleman, A W. Dynamics of cluster dissociation following multiphoton ionization.  United States: N. p., 1986. 
        Web.

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                    Castleman, A W. Dynamics of cluster dissociation following multiphoton ionization.  United States.

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                    Castleman, A W. 1986.  
        "Dynamics of cluster dissociation following multiphoton ionization".  United States.

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@article{osti_6710236,

  title        = {Dynamics of cluster dissociation following multiphoton ionization},

  author       = {Castleman, A W},

  abstractNote = {A major advance in the study of unimolecular dissociation and the spectroscopy of clusters has become available through the use of multiphoton ionization coupled with a reflectron introduced into the drift region of a time-of-flight mass spectrometer. Using single and two-color tunable pulsed lasers, the excess energy introduced into a cluster can be well controlled. The power of this method is demonstrated by the results of recent investigations of hydrogen-bonded clusters which, following ionization, lead to an internal ion-molecule reaction, and cluster fragmentation. The role of dissociation and the influence of the thermochemical stability of cluster ions in effecting the appearance of magic numbers in certain cluster distributions is discussed. The application of this method in determining ionization potentials of probe molecules following successive clustering with a solvent species is also presented.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/6710236},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Wed Jan 01 00:00:00 EST 1986},

  month        = {Wed Jan 01 00:00:00 EST 1986}

}

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