دورية أكاديمية
Studies of Ar:HBr using fast scan submillimeter-wave and microwave coaxial pulsed jet spectrometers with sub-kHz precision.
| العنوان: | Studies of Ar:HBr using fast scan submillimeter-wave and microwave coaxial pulsed jet spectrometers with sub-kHz precision. |
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| المؤلفون: | McElmurry, B. A., Lucchese, R. R., Bevan, J. W., Leonov, I. I., Beiov, S. P., Legon, A. C. |
| المصدر: | Journal of Chemical Physics; 11/22/2003, Vol. 119 Issue 20, p10687-10695, 9p, 1 Diagram, 4 Charts, 4 Graphs |
| مصطلحات موضوعية: | FREQUENCIES of oscillating systems, MICROWAVE spectroscopy, SPECTROMETERS, MOLECULAR structure, MOLECULAR rotation, HYDROGEN bromide |
| مستخلص: | Coaxial pulsed jet submillimeter spectra are reported for Ar:H[sup 79]Br and Ar:H[sup 81]Br transition frequencies measured with sub-kHz precision. This is confirmed by comparing combination frequency differences associated with ΔF=+/-1 hyperfine components in the rovibrational transitions of the low frequency Σ bending mode with corresponding sum frequencies of the rotational transitions in the ground state precisely measured with a pulsed-nozzle FT microwave spectrometer (1.5 kHz resolution, 200 Hz accuracy). Ground state molecular parameters evaluated using the submillimeter-wave and microwave techniques are demonstrated to have comparable accuracy. Furthermore, excited Σ state molecular constants for the isotopic band origins of Ar:H[sup 79]Br and Ar:H[sup 81]Br at 329 611.4284(10) and 329 225.6778(10) MHz are shown to be determined with equivalent accuracy. © 2003 American Institute of Physics. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: | Complementary Index |
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