کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5404253 | 1392774 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Crystal-field analysis for d8 ions at D4h symmetry sites: Electronic states in trans-NiCl2(H2O)4 complex
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
The polarized absorption spectra of trans-NiCl2(H2O)4 complex were measured by Bussière et al. [Coord. Chem. Rev. 219-221 (2001) 509-543] at low-temperature. Using the experimental spectroscopic data, semiempirical calculations of the crystal-field levels of trans-NiCl2(H2O)4 chromophore are carried out, based on the Racah theory. We used idealized D4h point group symmetry to analyse the observed crystalline-field splitting of this chromophore. As a result, Racah and crystal-field parameters have been reliably obtained. A good agreement between the theoretical and experimental energy levels of trans-NiCl2(H2O)4 complex has been obtained. The region of 3T1g/1Eg(Oh) bands is of great interest and it is useful to use the tetragonal symmetry to understand the features of this spectral region.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 124, Issue 2, June 2007, Pages 316-320
Journal: Journal of Luminescence - Volume 124, Issue 2, June 2007, Pages 316-320
نویسندگان
Souha Kammoun, Mohamed Dammak, Ramzi Maalej, Mohamed Kamoun,