Bibliographic Citation
Document | For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field. For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability. |
---|---|
Title | Discharge flow-photoionization mass spectrometric study of HOI: Photoionization efficiency spectrum and ionization energy |
Creator/Author | Monks, P.S. ; Stief, L.J. [NASA/Goddard Space Flight Center, Greenbelt, MD (United States)] ; Tardy, D.C. [Univ. of Iowa, Iowa City, IA (United States)] ; Liebman, J.F. [Univ. of Maryland, Baltimore, MD (United States)] ; Zhang, Z. ; Kuo, S.C. ; Klemm, R. B. [Brookhaven National Lab., Upton, NY (United States)] |
Publication Date | 1995 Nov 09 |
OSTI Identifier | OSTI ID: 174268 |
Other Number(s) | JPCHAX; ISSN 0022-3654 |
Resource Type | Journal Article |
Resource Relation | Journal of Physical Chemistry ; VOL. 99 ; ISSUE: 45 ; PBD: 9 Nov 1995 |
Subject | 40 CHEMISTRY ; PHOTOCHEMICAL REACTIONS; EFFICIENCY; HYPOIODOUS ACID; PHOTOIONIZATION; IONIZATION POTENTIAL; MASS SPECTRA; IODINE COMPOUNDS |
Description/Abstract | Photoionization efficiency (PIE) spectra of HOI were measured over the wavelength range{lambda}= 115-130 nm and in the ionization threshold region,{lambda}= 123-129 nm, using a discharge flow-photoionization mass spectrometer apparatus coupled to a synchrotron radiation source. HOI was generated, in situ but in varying amounts, by three separate reactions: OH+ I{sub 2}; OH+ CF{sub 3}I; O({sup 3}P)+ C{sub 2}H{sub 5}I. The PIE spectra displayed steplike behavior near threshold, and the HO-I stretching frequency in the cation was determined to be 702{+-} 60 cm{sup -1}. Even though the present result appears to be the first reported determination of IE(HOI), the experimental value is compared to an estimated value previously derived via a trend analysis and it is considered in terms of trends in the series IE(HOX), where X= F, Cl, Br, and I. Based on the value for IE(HOI) derived in the present study, a value for IE(IO)= 9.66{+-} 0.10 eV has been predicted. 37 refs., 4 figs., 3 tabs. |
Country of Publication | United States |
Language | English |
Format | pp. 16566-16570 ; PL: |
System Entry Date | 2001 May 03 |
Top |