Journal of the Chemical Society - Faraday Transactions p. 4171 - 4176 (1993)
Update date:2022-08-16
Topics:
Ma, Pelhua
Liu, Julin
Chen, Guancheng
Chu, Minxiong
Jing, Yan
Wu, Bin
The chain reaction of 1,2-dichloroethane induced by a CW CO2 laser has been studied in the presence of SF6 as a sensitizer.Vinyl chloride and hydrogen chloride are the main products.The photosensitized decomposition of 1,2-dichloroethane mainly depends on the irradiated laser frequency and is governed by the excitation of the vibrational mode and collisional energy transfer.Arrhenius plots show two distinct regimes, corresponding to the respective activation energies: 96.3 kJ mol-1 for the low-temperature regime and 50.2 kJ mol-1 for the high-temperature regime.The inhibiting and promoting effects of the propene and chlorine, respectively, on the chain reaction are examined.The kinetics proposed for the chain reaction are in agreement with the observed data, and mechanisms for molecular excitation and intramolecular energy transfer have been discussed.By using an IR lase, active centres can be generated, and initiation and propagation of a chain reaction at lower temperatures than is possible thermally can be achieved.This may be a way to decrease the energy expenditure and reduce the number of by-products in the chain reaction.
View MoreHebei Kangtai Pharmaceutical Co.,Ltd
Contact:+86-0317-3512963
Address:Wugang Road,Mengcun of Cangzhou City,Hebei Province ,China
website:http://www.chinaskyrun.com
Contact:0086-576-84610586
Address:Chemical Development Zone
Hangzhou Hysen Pharma co.,Ltd.
website:http://www.hysenpharma.cn/
Contact:0086-571-88298791
Address:#701,Gudun Road Hangzhou
HaiNan Periwinkle Pharmaceutical Co.,Ltd.
website:http://www.cchpharm.com/en/index.html
Contact:020-82208978
Address:Gongye road,Wuzhishan city,HaiNan province
CGeneTech (Suzhou, China) Co., Ltd.
Contact:+86-512-62956962
Address:Room 101,Bld C11,218 Xinghu Rd.,Suzhou industrial Park
Doi:10.1002/chem.201300583
(2013)Doi:10.1039/c9dt03584b
(2019)Doi:10.3390/molecules26072031
(2021)Doi:10.1002/jps.2600710818
(1982)Doi:10.1016/j.saa.2011.04.038
(2011)Doi:10.1016/S0022-328X(00)92591-9
(1977)