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High-Resolution Spectra of the 10B18O and 11B18O: Rotational Analysis of the B--X Bands |
| V. Bojovic;A. Antic-Jovanovic;M. Kuzmanovic |
| Faculty of Physical Chemistry, University of Belgrade, PO Box 137, 11001 Belgrade, Serbia and Montenegro |
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| Cite this article: |
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V. Bojovic, A. Antic-Jovanovic, M. Kuzmanovic 2005 Chin. Phys. Lett. 22 857-860 |
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Abstract Emission spectra of 10B18O and 11B18O isotopomers in the 230--330nm region have been investigated by means of conventional high-resolution spectroscopy. The molecules were produced in a low-pressure arc by discharging 8 Torr of mixture containing argon and oxygen 18 in the ratio of 4:1 and the spectra have been recorded using Ebert-type spectrograph. The boron needed to produce BO has been present in the system as amorphous powder with natural abundance of 10B and 11B. Rotational analysis of the 0, 0 and 0, 1 bands has been performed and spectroscopic constants have been extracted. The results have allowed first determination of the equilibrium rotational constants Be and De for both isotope species 10B18O and 11B18O in their lower electronic state. Assuming a linear dependence of Be on (v +1/2), the value of equilibrium distance re in the lower state has been derived.
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| Keywords:
33.20.Jg
33.20.Sn
33.20.Wr
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Published: 01 April 2005
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