Photodissociation thresholds of OH produced from CH3OH in solid neon and argon

Citation
Bm. Cheng et al., Photodissociation thresholds of OH produced from CH3OH in solid neon and argon, NUCL INST A, 467, 2001, pp. 1461-1464
Citations number
16
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
467
Year of publication
2001
Part
2
Pages
1461 - 1464
Database
ISI
SICI code
0168-9002(20010721)467:<1461:PTOOPF>2.0.ZU;2-2
Abstract
Photodissociation thresholds of OH from CH3OH in solid Ne and Ar were deter mined via photolysis of CH3OH/Ne and CH3OH/Ar (1/200) samples in situ at 4 K. The samples were irradiated with VUV synchrotron radiation after dispers ion by a Seya-Namioka monochromator. The OH photo-product was detected by m eans of laser-induced fluorescence technique. The increase of fluorescent i ntensity of OH was monitored and recorded after the matrix sample was irrad iated at different wavelengths for 3-5 min. Photodissociation threshold ene rgies of 7.13 +/- 0.02 eV (174.0 +/- 0.5 nm) and 7.08 +/- 0.04 eV (175.0 +/ - 1.0 nm) were measured for OH production of CH3OH in solid Ne and Ar, resp ectively. (C) 2001 Elsevier Science B.V. All rights reserved.