Photodissociation of Arn−mN+2m clusters (n=2 or 3, m=0−n)
✍ Scribed by Thomas F. Magnera; Josef Michl
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 718 KB
- Volume
- 192
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
Laser-induced photodissociation cross sections of Ar: , ArN:, N4+, Ar: , Ar,N$ , ArN: , and N6+, obtained by sputtering of solid argon-nitrogen mixtures, have been measured in the 270-650 nm range. All the spectra exhibit a band in the UV (305-335 nm) and those of the trimeric ions, except for N :, also have a band in the visible (465-525 nm). The photodissociation products depend on the choice of wavelength in a readily rationalized fashion.
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The gas-phase reaction of the NOa radical with NO, was investigated, using a flash photolysis-visible absorption technique, over the total pressure range 25-400 Torr of nitrogen or oxygen diluent a t 298 2 2 K. The absolute rate constants determined (in units of em3 molecule-' s-') a t 25, 100, and