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Study of electronic absorption spectrum of hafnium monobromide molecule in the 550–800 nm regionстатья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 20 апреля 2016 г.
- Авторы: Moskvitina E.N., Kuzyakov Yu Ya
- Журнал: Moscow University Chemistry Bulletin
- Том: 70
- Номер: 5
- Год издания: 2015
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 246
- Последняя страница: 252
- DOI: 10.3103/S0027131415050090
- Аннотация: The electronic absorption spectrum of the HfBr molecule in the 550–800 nm region is studied using the intracavity laser spectroscopy method. The HfBr molecules are produced in plasma formed during a pulse electric discharge in the vapor mixture of hafnium tetrabromide with hydrogen or ammonium. The discharge tube with the mixture is placed in a dye laser cavity. The spectrum recording is conducted with the help of a diffraction spectrograph (resolution power 240000). The high sensitivity of the intracavity method makes it possible to reveal the presence of twenty new bands in the HfBr spectrum with partially resolved rotational structure. By analogy with the HfCl spectrum, the HfBr bands are assigned to the 2Δ3/2–X2Δ3/2 transition. Analysis of the bands is conducted and molecular constants are determined for the ground and excited states:ωe'' = 255.07 cm–1, ωeωe''= 0.86 cm–1, ωe'= 238.31 cm–1, ωeωe'= 1.1 cm–1, B'' = 0.04251 cm–1, B' = 0.04025 cm–1.
- Добавил в систему: Лабутин Тимур Александрович