کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9589589 | 1393813 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Laser spectroscopy of the B[21.68]8-X8, Bâ²[21.65]8-X8 and C[22.3]7-X27 transitions of holmium monofluoride
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Laser spectroscopy of the B[21.68]8-X8, Bâ²[21.65]8-X8 and C[22.3]7-X27 transitions of holmium monofluoride Laser spectroscopy of the B[21.68]8-X8, Bâ²[21.65]8-X8 and C[22.3]7-X27 transitions of holmium monofluoride](/preview/png/9589589.png)
چکیده انگلیسی
The spectrum of holmium monofluoride (HoF) in the blue (420-480Â nm) region has been studied using laser-induced fluorescence. Previous work [J. Phys. B 7 (1974) L234] had assigned several bands in this region to the B8-X8 transition. By obtaining wavelength selected laser excitation spectra at high resolution and rotationally analyzing seven bands in this region, we have shown that not all the bands previously assigned to the B8-X8 system belong to the same electronic transition and have identified three separate transitions which we have labelled B8-X8, Bâ²8-X8, and C7-X27. Preliminary low resolution dispersed fluorescence spectra have shown several excited states at energies greater than 4000Â cmâ1 above the ground state and, though not all could be assigned, ligand field theory calculations are consistent with assigning them to the first excited spin-orbit component of the Ho+(4f106s2)Fâ ground state configuration or to the first excited configuration, Ho+(4f116s)Fâ. The results of the dispersed fluorescence experiments also tentatively place the X27 state at â¼70Â cmâ1 above the ground X7 state.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Spectroscopy - Volume 229, Issue 2, February 2005, Pages 216-223
Journal: Journal of Molecular Spectroscopy - Volume 229, Issue 2, February 2005, Pages 216-223
نویسندگان
M.J. Dick, A.K. Kristoffersen, C. Linton,