Higher resolution photoionization study of acetylene near the threshold

Journal Article · Wed Apr 14 23:00:00 EST 1982 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.443505· OSTI ID:5651476

Ono, Y; Osuch, E A; Ng, C Y

High resolution (0.14 A FWHM) photoionization efficiency data for C/sub 2/H/sup +//sub 2/ near the threshold (1059--1090 A) have been obtained using the molecular beam method. The positions of the autoionization features resolved on the v/sub 2/ = 0 vibrational step of C/sub 2/H/sup +//sub 2/(X /sup 2/Pi/sub u/) were found to be consistent with those calculated from the two Rydberg equations ..nu../sub n/ = 93 770-(R/(n-0.95)/sup 2/) cm/sup -1/, ..nu../sub n/ = 93 770-(R/(n-0.36)/sup 2/) cm/sup -1/, where R and n are the Rydberg constant and the principal quantum number, respectively.

• Research Organization: Ames Laboratory, U. S. Department of Energy, and Department of Chemistry, Iowa State University, Ames, Iowa 50011
• OSTI ID: 5651476
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 76:8; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ACETYLENE
ALKYNES
AUTOIONIZATION
BEAMS
CORRELATIONS
EFFICIENCY
ENERGY LEVELS
EQUATIONS
EXCITED STATES
HYDROCARBONS
IONIZATION
MOLECULAR BEAMS
ORGANIC COMPOUNDS
PHOTOIONIZATION
RESOLUTION
RYDBERG EQUATION
VIBRATIONAL STATES