کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7832233 | 1503291 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reaction Mechanism of C6F6-HNO2 Aqueous Solution under Irradiation at 355 nm
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: Reaction Mechanism of C6F6-HNO2 Aqueous Solution under Irradiation at 355 nm Reaction Mechanism of C6F6-HNO2 Aqueous Solution under Irradiation at 355 nm](/preview/png/7832233.png)
چکیده انگلیسی
The reaction mechanism of C6F6-HNO2 aqueous solution was studied using the laser flash photolysis-transient absorption spectrum technique under irradiation at 355 nm. The characteristic absorption peaks and the kinetic parameters of transient species were also investigated. The hydroxyl radical derived from the photolysis of HNO2 was added to hexafluorobenzene with a second-order rate constant of 1.8Ã109 L·molâ1·sâ1 to form an adduct, C6F6···OH, which had absorption peaks at 250, 270, and 400 nm. The C6F6···OH adduct decayed by the elimination of HF to yield C6F5O· with an apparent first-order rate constant of 6.1Ã105 sâ1. In the presence of O2, C6F6···OH underwent a complex reaction with a rate constant of 2.8Ã106 L·molâ1·sâ1 to form C6F6OHO2, which had the same absorption bands as C6F6···OH. The final products were identified using the GC-MS technique and the possible reaction pathways were also discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Physico-Chimica Sinica - Volume 23, Issue 2, February 2007, Pages 152-156
Journal: Acta Physico-Chimica Sinica - Volume 23, Issue 2, February 2007, Pages 152-156
نویسندگان
Renxi Zhang, Li Huang, Haojie Fang, Wenbo Dong, Huiqi Hou,