کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5376710 1504329 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Radiative lifetimes of the A2Π, B2Σ+, C2Π and D2Σ+ states of the CaBr and CaI radicals
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Radiative lifetimes of the A2Π, B2Σ+, C2Π and D2Σ+ states of the CaBr and CaI radicals
چکیده انگلیسی
The lifetimes of the A2Π, B2Σ+, C2Π and D2Σ+ states of the CaBr and CaI radicals have been measured directly from the time rate of fluorescence decay using an appropriate pulsed dye laser as an excitation source. The zero pressure radiative lifetimes determined for the first time for the C2Π1/2 state of CaI and D2Σ+ state of CaBr were (50.5 ± 1.5) ns and (21.0 ± 2.6) ns, respectively. The measured lifetimes agree well with trends predicted by a Ligand Field (L-F) model. For the CaI C2Π3/2 state (τ = 31.2 ns at 1 mbar pressure) and D2Σ+ state (τ < 11 ns), anomalously short lifetimes are observed, indicating that these states are predissociated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 330, Issues 1–2, 8 November 2006, Pages 130-137
نویسندگان
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