Direct dynamics study on hydrogen abstraction reaction of morpholine with hydroxyl radical

Verfasser / Beitragende:
[Hong Gao, Miaomiao Wang, Tongyin Jin, Jian Shi, Xiaojun Yao, Nengzhi Jin]
Ort, Verlag, Jahr:
2015
Enthalten in:
Theoretical Chemistry Accounts, 134/8(2015-08-01), 1-10
Format:
Artikel (online)
ID: 605488150
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024 7 0 |a 10.1007/s00214-015-1699-2  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00214-015-1699-2 
245 0 0 |a Direct dynamics study on hydrogen abstraction reaction of morpholine with hydroxyl radical  |h [Elektronische Daten]  |c [Hong Gao, Miaomiao Wang, Tongyin Jin, Jian Shi, Xiaojun Yao, Nengzhi Jin] 
520 3 |a A dual-level direct dynamic study has been employed to investigate the H-abstraction reaction of morpholine (C4H9NO) with OH. The chair conformer of C4H9NO molecule is performed as the reactant because of the lower energy. The potential energy surfaces are obtained at the MC-QCISD/3//M06-2X/6-311+G(d, p) level. The rate constants are estimated using the improved canonical variational transition state theory with the small-curvature tunneling correction over a wide temperature range of 200 to 1000K, and a fitted four-parameter rate constant expression is obtained. The calculated rate constants are in good agreement with the available experimental values, and the negative temperature dependence of rate constant is found within 200-600K. Moreover, the contribution of each reaction site to the title reaction is discussed with respect to the temperature. The result shows that the H-abstraction reaction mainly takes place at the -CH2 group attached to the N atom at low temperatures, while as the temperature increases the contribution of the H-abstraction to the title reaction from the -NH group becomes larger rapidly, and the -NH group turns into the most important H-abstraction reaction site when the temperature is higher than 800K. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Morpholine  |2 nationallicence 
690 7 |a Rate constants  |2 nationallicence 
690 7 |a Variational transition state theory  |2 nationallicence 
690 7 |a Direct dynamics  |2 nationallicence 
690 7 |a Density functional theory  |2 nationallicence 
700 1 |a Gao  |D Hong  |u Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, 730000, Lanzhou, People's Republic of China  |4 aut 
700 1 |a Wang  |D Miaomiao  |u Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, 730000, Lanzhou, People's Republic of China  |4 aut 
700 1 |a Jin  |D Tongyin  |u Department of Chemistry, Hebei Normal University for Nationalities, 067000, Chengde, People's Republic of China  |4 aut 
700 1 |a Shi  |D Jian  |u Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, 730000, Lanzhou, People's Republic of China  |4 aut 
700 1 |a Yao  |D Xiaojun  |u Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, 730000, Lanzhou, People's Republic of China  |4 aut 
700 1 |a Jin  |D Nengzhi  |u Gansu Computing Center of China, 730000, Lanzhou, People's Republic of China  |4 aut 
773 0 |t Theoretical Chemistry Accounts  |d Springer Berlin Heidelberg  |g 134/8(2015-08-01), 1-10  |x 1432-881X  |q 134:8<1  |1 2015  |2 134  |o 214 
856 4 0 |u https://doi.org/10.1007/s00214-015-1699-2  |q text/html  |z Onlinezugriff via DOI 
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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/s00214-015-1699-2  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Gao  |D Hong  |u Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, 730000, Lanzhou, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wang  |D Miaomiao  |u Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, 730000, Lanzhou, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Jin  |D Tongyin  |u Department of Chemistry, Hebei Normal University for Nationalities, 067000, Chengde, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Shi  |D Jian  |u Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, 730000, Lanzhou, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Yao  |D Xiaojun  |u Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, 730000, Lanzhou, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Jin  |D Nengzhi  |u Gansu Computing Center of China, 730000, Lanzhou, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Theoretical Chemistry Accounts  |d Springer Berlin Heidelberg  |g 134/8(2015-08-01), 1-10  |x 1432-881X  |q 134:8<1  |1 2015  |2 134  |o 214