کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1235100 | 968842 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spectral image analysis for the absorption bands of the β-methallyl free radical in the vapor phase
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Spectral image analysis for the absorption bands of the β-methallyl free radical in the vapor phase Spectral image analysis for the absorption bands of the β-methallyl free radical in the vapor phase](/preview/png/1235100.png)
چکیده انگلیسی
The radicals formed in the flash photolysis of 2-methylbut-1-ene and subsequent reactions have been investigated by kinetic spectroscopy and gas liquid chromatography. Less than 10% of photo products are formed by a molecular made of fission of the excited olefin, and of the radical modes the relative probabilities of band fission, β(CH):β(CH):α(CC) are 13:1.37:1. The extinction coefficients of β-methallyl radical measured experimentally for all the absorption bands. The decay of the β-methallyl radical was second order. The rate constant for the β-methallyl radical recombination experimentally measured was 2.6 ± 0.3 Ã 1010 l molâ1 sâ1 at 295 ± 2 K. The spectrum image showing the absorption bands was examined by image processing techniques in order to improve the visual experience of each band by localizing to a specific region of interest. Experimental results illustrate how the exact location of absorption bands was clearly extracted from the spectral image and further improvements in the visual detection of absorption bands.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 67, Issue 5, August 2007, Pages 1276-1280
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 67, Issue 5, August 2007, Pages 1276-1280
نویسندگان
Fuat Bayrakçeken, Ziya Telatar, Fikret Arı, Aykut B. Bayrak,