Journal of Physical Chemistry p. 7204 - 7210 (1988)
Update date:2022-09-26
Topics:
Bernadet, Philippe
Schriver, Louise
Schriver, Andre
Perchard, Jean-Pierre
Matix isolation infrared spectroscopy applied to the ethylene oxide/H(D)I system trapped in solid Ar and N2 allows identification of several kinds of hydrogen-bonded complexes: a 1:1 species which exists under different structures and larger aggregates giving rise to proton transfer with formation of ionic species of the type <(EO)2H>+ or (IHI)- characterized by quasi-symmetrical single-minimum potential functions for the proton (proton sharing).The interconversion between the hydrogen-bonded (C) and the non-hydrogen-bonded (U) form of the 1:1 complex is seen to depend on two parameters: temperature and infrared irradiation.Kinetic measurements of the disappearance (or appearance) of C have shown that the C->U conversion is mainly induced by IR radiations in the range 1500-2300 cm-1, corresponding to the excitation of νs (HI stretching mode), while the C<-U transformation is thermally induced above 17 K.From the temperature dependence of the kinetic rate constant an activation energy for C<-U conversion has been obtained.The effect of HI/DI isotopic substitution is also discussed.The very slow C->U conversion rate with DI suggests a barrier greater than 1500 cm1- for this photoprocess.
View MoreContact:0086-29-89196322
Address:North of the Fifth Keji Road, Hi-Tech Industrial Zone, Xi'an City, Shaanxi Province, China
Zibo Fuxi'er Chemical Co.,Ltd (Shanxian Fuxi'er Chemical Co.,Ltd)
Contact:+86-533-2091422
Address:Eastern 4 on the 3th Road ,Liangxiang Industrial Park, Zibo city ,Shandong,China
PharmaResources(Kaiyuan)CO,.Ltd
Contact:+86-21-50720028
Address:No.3, Beihuan Road, Economic Development District, Kaiyuan City, Tieling City, Liaoning Province, China 112300
Puyang Willing Chemicals Co.,Ltd.
Contact:86-393-4840366
Address:Puyang Henan China
website:http://www.antimex.com
Contact:0086-21-50563169
Address:Room1027,No.Jinyu Road,Pudong
Doi:10.1021/ja026689k
(2002)Doi:10.1016/j.bmc.2009.04.022
(2009)Doi:10.1055/s-0028-1087997
(2009)Doi:10.1246/bcsj.82.603
(2009)Doi:10.1016/j.tetlet.2019.151576
(2020)Doi:10.1002/ejoc.200900125
(2009)