Ion/Molecule Reactions of Arsenic and Phosphorus Cluster Ions: Ionization Potentials and Novel Reaction Pathways

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Abstract:

Ionization potentials IPs for arsenic and phosphorus clusters Asn, n 1-5 Pn, n 1-4 have been determined by gas phase charge transfer reactions. Arsenic and phosphorus cluster ions were generated by pulsed CO2 laser desorption from GaAs and InP substrates, mass selected, thermalized, and allowed to react with compounds of known ionization potential in a Fourier transform ion cyclotron resonance mass spectrometer. The IPs for As3 and As5, previously unreported, as well as more accurate IP values for several of the other clusters, have been determined. Products and rate coefficients for some interesting reactions of the cluster ions with the charge transfer agents are also reported. Keywords Arsenic clusters, Phosphorus clusters, Ionization potentials, Charge transfer reactions, Fourier transform ion cyclotron resonance mass spectrometry.

Author(s):
Zimmerman, Jeffrey A. ; Bach, Stephen B. ; Watson, Clifford H. ; Eyler, John R.
Author Organization(s):
FLORIDA UNIV GAINESVILLE DEPT OF CHEMISTRY
Descriptive Note:
Technical rept. no. 29, Oct 1989-Mar 1990
Pagination:
0032

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N00014-87-G-0248
 Subject Terms
Joint Capability Areas:
JCA_1.2.7_Experimentation; JCA_4.5.4_Requirements Definition; JCA_4.5_Operational Contract Support; JCA_5_Command and Control; JCA_1.2.3_Educating
Modernization Areas:
Microelectronics
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*CLUSTERING, *CHARGE TRANSFER, RATES, SUBSTRATES, IONIZATION POTENTIALS, PHOSPHORUS, ARSENIC, ION ION INTERACTIONS, MOLECULES, IONS, COEFFICIENTS
Field(s)/Group(s):
Physical Chemistry
Report Date:
1990 May 19