Excited state production by nonionic processes in the pulse radiolysis of gaseous systems containing naphthalene

Journal Article · Tue Jan 01 04:00:00 EST 1974 · J. Phys. Chem., v. 78, no. 1, pp. 22-27

DOI:https://doi.org/10.1002/chin.197412158· OSTI ID:4349404

Sauer, Jr, M C; Mulac, W A

The emission yield (relative) from the first excited singlet state of naphthalene and the yield of the lowest triplet state of naphthalene have been determined in the gas phase as a function of the concentrations of naphthalene, argon, and n-hexane in samples containing SF/sub 6/, which is known to eliminate the formation of these excited states by ionic processes. The conclusion production of the lowest excited singlet of naphthalene is direct excitation by low-energy electrons which lose energy to argon with a much lower efficiency than to napthalene. In n-hexane systems, the results indicate that a major part of the singlet n-hexane. In the case of the triplet state yields, arguments are presented which indicate that intersystem crossing from a highly vibrational excited level of the first exc ited singlet is responsible for a large part of the triplet yield, and that this corss over occurs before vibrational deactivation can occur, even at the relatively high pressures used. (auth)

• Research Organization: Argonne National Lab., IL
• Sponsoring Organization: USDOE
• NSA Number: NSA-29-015379
• OSTI ID: 4349404
• Journal Information: J. Phys. Chem., v. 78, no. 1, pp. 22-27, Journal Name: J. Phys. Chem., v. 78, no. 1, pp. 22-27; ISSN JPCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

*ARGON-- RADIOLYSIS
*HEXANE-- RADIOLYSIS
*NAPHTHALENE-- RADIOLYSIS
CHEMICAL REACTION KINETICS
EXCITED STATES
GASES
MEV RANGE 10-100
N40300* --Chemistry--Radiation Chemistry
PULSED IRRADIATION
RADIATION CHEMISTRY
SULFUR FLUORIDES