Journal of Physical Chemistry p. 13528 - 13536 (1995)
Update date:2022-08-11
Topics:
Parnis
Hoover
Pedersen
Patterson
Photolytic generation of methanol from methane in Ar matrices containing Li and N2O is proposed to occur via a UV-light-induced electron transfer from Li to N2O to form N2O-. A weak ground-state interaction between Li and N2O is suggested by the observation of a Li-N2O complex which decays rapidly during the initial stages of the reaction. N2O- is believed to decompose spontaneously or, following photo-excitation, to form N2 and O-. The O- thus formed, or O(1D) produced via photodetachment from O-, then reacts with methane to form methanol. An electron is believed to be transferred to a nearby Li+ ion in the process, thereby regenerating the initial electron donor and allowing significant amounts of N2O to be consumed, despite the limited amount of Li available in the matrix. Formation of the formaldehyde/water complex during the latter stages of the reaction occurs as a result of secondary reactions of methanol with O- or O(1D). The wavelength cutoff of 350-400 nm for the process is in reasonable accord with the predicted threshold for formation of a Li+/N2O- ion pair in an Ar matrix. The unusual dependence of the rate of methanol production, in irradiation time, with N2O concentration in the matrix is interpreted as arising from a reversible, redundant electron transfer from Li to N2O. This is believed to occur when there is an absence of significant stabilization from Ar polarization interactions, due to the ions being formed in too close proximity.
View MoreContact:86 513 85512619
Address:Rm.1306, Building A, Wenfeng Mansion,168 Gongnong Road, Nantong Jiangsu China
Changzhou Litong Chemical Co., Ltd.
website:http://www.litonchem.com/
Contact:+86-519-86301238
Address:Laoba Rd, Hutang town Changzhou Jiangsu
Zhangjiagang Jianing Import & Export Co.,Ltd.
Contact:086-512-55379012 13913607595
Address:NO.1 Guotai North Road Zhangjiagang Economic Development Zone,215600,Jiangsu,China
website:http://www.angchenchem.com
Contact:+86-510-88302099 82327577
Address:Rm. 404/405, Floor 4th, No. 983 FengXiang Road, Wuxi, China
website:http://www.mascot-ie.com
Contact:86-519-85010339
Address:B-802,XingBei Building,391#,Tongjiang Middle Road New District,Changzhou,JS,China
Doi:10.1080/00397911.2016.1276191
(2017)Doi:10.1002/cssc.202001052
(2020)Doi:10.1039/a900571d
(1999)Doi:10.1021/jo01035a007
(1964)Doi:10.1002/anie.202002714
(2020)Doi:10.1039/c39850000629
(1985)