کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1194823 1492346 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The electronic gas-phase spectrum of B3 radical revisited
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
The electronic gas-phase spectrum of B3 radical revisited
چکیده انگلیسی
The gas-phase electronic spectrum of cyclic-B3 (D3h) radical has been remeasured in a supersonic molecular beam using a mass-selective resonant 2-color 2-photon technique, leading to a revision of previously reported spectroscopic constants. The species was prepared by ablation of a boron nitride rod in the presence of helium. Ab intio calculations on the geometries and vertical electronic excitation energies, as well as mass identification, indicate that the detected band, centered at 21848.77(2) cm−1, is the origin of the 22E′−X˜2A′1 cyclic-11B3 system. A spectral fit yields the rotational constants as B″ = 1.2246(45) and C″ = 0.62131(72) cm−1 in the X˜2A′1 ground state, and B′ = 1.1914(44) and C′ = 0.61173(69) cm−1 in the excited 2 2E′ state.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mass Spectrometry - Volume 280, Issues 1–3, 1 February 2009, Pages 174-178
نویسندگان
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