Contributions à la connaissance des modes de formation et des propriétés du chlorure de nitrosyle

Intensity of Electronic Transitions of Methane and Carbon Tetrafluoride in the Vacuum Ultraviolet1

“…The experimental /-numbers are reported in Table I. In the case of methane, there is some overlapping with the absorption (8) Preceding paper, This Journal, 74, 3136 (1952). at shorter wave lengths and it was necessary to use an approximate method of resolution.8 There was no appreciable overlapping in the case of CF4.…”

“…A large error in the experimental results may arise because of unresolved rotational fine structure. 8 The highest resolution available at present is far from adequate to resolve this structure especially in carbon tetrafluoride. We conclude that lower limits of the integrated absorption coefficients have been measured, which may be much lower than the true values.…”

Nitrosyl Chloride.

“…Earlier measurements by Trautz and Gerwig (505) are in quite close agreement therewith. Other published work (92,170) differs considerably and is considered less reliable. Unpublished data from this laboratory lend further support to this view.…”

“…Another technique is to take advantage of the fact that the reaction between gaseous nitric oxide and chlorine can be catalyzed by materials such as activated charcoal or alumina, which provide a large surface area. Such procedures have been described (101,159,160,495) and used by numerous workers (92,369,563). In this method purified gaseous nitric oxide and chlorine are passed through the moderately heated catalyst bed (e.g., 40-50°C.)…”

Nitrosyl Chloride

“…5 This procedure uses a modification of the last-named method. 5 This procedure uses a modification of the last-named method.…”