Density functional theory study of C2F5I synthesis over activated carbon catalyst

Verfasser / Beitragende:
[Yingjie Hu, Mengwei Xue, Guangchen Yang, Renming Pan]
Ort, Verlag, Jahr:
2015
Enthalten in:
Journal of Molecular Modeling, 21/9(2015-09-01), 1-9
Format:
Artikel (online)
ID: 605511179
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024 7 0 |a 10.1007/s00894-015-2775-1  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00894-015-2775-1 
245 0 0 |a Density functional theory study of C2F5I synthesis over activated carbon catalyst  |h [Elektronische Daten]  |c [Yingjie Hu, Mengwei Xue, Guangchen Yang, Renming Pan] 
520 3 |a Quantum chemistry calculations based on the density functional theory (DFT) are carried out to investigate the reaction mechanism of C2F5I synthesis catalyzed by activated carbon. The possible adsorption configurations of fluorocarbon intermediates are analyzed carefully. Also, the related transition states and reaction pathway are analyzed. According to calculation, firstly, the dehydrofluorination of C2HF5, as the rate-determining step, is catalyzed by the carboxyl acid groups. Secondly, the tetrafluoroethylidene radicals disproportionate on graphite (001) surface instead of rearrangement or dimerization. Next, the fluorine abstractions between fluorocarbon intermediates over graphite (001) surfaces proceed successfully. Finally, the desorbed pentafluoroethyl abstracts iodine atom from molecular iodine spontaneously to afford C2F5I. In adition, our calculations reveal that the carbon deposit in experiment is caused by the fluorine abstraction from fluoroethinyl. The suggested mechanism corresponds with our calculations and available experiments. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a C2F5I synthesis:CFCF3 disproportionation activated carbon C2HF5  |2 nationallicence 
700 1 |a Hu  |D Yingjie  |u Nanjing Xiaozhuang University, 211171, Nanjing, China  |4 aut 
700 1 |a Xue  |D Mengwei  |u Nanjing Xiaozhuang University, 211171, Nanjing, China  |4 aut 
700 1 |a Yang  |D Guangchen  |u Institute of Chemical Materials, China Academy of Engineering Physics, 621900, Mianyang, China  |4 aut 
700 1 |a Pan  |D Renming  |u School of Chemical Engineering, Nanjing University of Science and Technology, 210094, Nanjing, China  |4 aut 
773 0 |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/9(2015-09-01), 1-9  |x 1610-2940  |q 21:9<1  |1 2015  |2 21  |o 894 
856 4 0 |u https://doi.org/10.1007/s00894-015-2775-1  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00894-015-2775-1  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Hu  |D Yingjie  |u Nanjing Xiaozhuang University, 211171, Nanjing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Xue  |D Mengwei  |u Nanjing Xiaozhuang University, 211171, Nanjing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Yang  |D Guangchen  |u Institute of Chemical Materials, China Academy of Engineering Physics, 621900, Mianyang, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Pan  |D Renming  |u School of Chemical Engineering, Nanjing University of Science and Technology, 210094, Nanjing, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/9(2015-09-01), 1-9  |x 1610-2940  |q 21:9<1  |1 2015  |2 21  |o 894