Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases p. 2705 - 2712 (1983)
Update date:2022-08-28
Topics:
Chandra, Harish
Davidson, Iain M. T.
Symons, Martyn C. R.
The aim of this study was to probe the utility of the spin-trapping tecnique for the identification and estimation of radicals derived from organosilicon compounds in the gas phase.The methods of generation comprised electric discharge and mercury-senzitized photolysis; the traps were Me3C-NO and PhCN=N(O)CMe3.After establishing that the procedures were satisfactory, using toluene and n-hexane as radical sources, a range of monosilanes was studied.Several systems gave reasonable yields of spin-trap radicals.For example, SiMe4 gave H2C.SiMe3 adducts, Me3SiH gave H2C.Si(H)Me3 and Me3Si. adducts and PhSiH3 gave PhSiH2 adducts.Certain chlorosilanes gave chlorine atom adducts using electric-discharge generation, but only very weak signals from unknown radical derivatives using the photolytic method.In many other cases, such as Me2SiH2 and MeSiH3, we were unable to detect any radical products despite extensive attempts under a wide range of conditions.We conclude that the technique is quite satisfactory for the detection of carbon-centred radicals, but is less reliable for the study of silyl radicals.In a few cases, we also used 2,6-di-t-butylquinone as a trap, but the results were less satisfactory than with the nitrone trap.
View MoreWuhan Hanye Chemical New Material Co.,Ltd
Contact:+86-27-85308141
Address:LiuDian, Panlongcheng Economic Development Zone, HuangPi district, Wuhan, Hubei 430311 P.R.China
Nanjing Chemlin Chemical Co., Ltd.
website:http://www.echemlin.cn
Contact:+86-25-83697070
Address:Rm.902 Longyin Plaza, No. 217 Zhongshan Rd.(N) Nanjing 210009,China
hangzhou verychem science and technology co.ltd
website:http://www.verypharm.com
Contact:+86-571-88162785; 88162786
Address:F1502, 753 Shenhua road, Hangzhou, China
Contact:86-25-51817806
Address:No. 216, middle longpan road, jincheng tower, floor 21-22, nanjing ,china
Jiangsu Cale New Material Co.ltd
Contact:+86-515-88334667/88203550
Address:Zhongshan 3rd Road, Coastal Chemical Industry Park, Yancheng, Jiangsu, China
Doi:10.1016/j.apcata.2015.02.026
(2015)Doi:10.1002/cctc.201800054
(2018)Doi:10.1021/om2001487
(2011)Doi:10.1021/acs.jnatprod.6b00730
(2017)Doi:10.1007/BF00924850
()Doi:10.1002/anie.202106204
(2021)
