Journal of Physical Chemistry p. 5822 - 5826 (1991)
Update date:2022-08-16
Topics:
Qin, X.-Z.
Liu, A.
Trifunac, A. D.
Krongauz, V. V.
The mechanism of photodissociation of 2-chlorohexaarylbiimidazole is studied by laser flash photolysis in organic liquids and by EPR methods in polymer and low-molecular-weight organic matrices.It is found that at low temperature (ca. 10 K) the ultraviolet irradiation produces a triplet hexaarylbiimidazole rather than the radicals.No triplet-state decomposition into radicals is observed, supporting the results of indirect measurements reported by other researchers.At higher temperatures, the radicals formed from the dissociation of the singlet state dominate.This is the first direct observation of the hexaarylbiimidazole triplet reported to date.The results are explained by considering the molecular structure and hexaarylbiimidazole mobility.
View More
Shaanxi King Stone Enterprise Company Limited
Contact:86-29-88353805,13609285751
Address:.209 Keji Road Hi-Tech industrial Develpment Zone .Xian China
Changzhou naidechemical Co.Ltd
Contact:+86-519-82589807
Address:NO.25,Houyang street,Jintan,Changzhou City
Beijing Century Richap Chemistry Co.,Ltd
Contact:+86- 010-64455497
Address:Guannan County, Lianyungang City, Jiangsu Province, China
website:http://www.chemdow.com
Contact:0086-10-82435335
Address:Room 401,Unit 3,4th Floor,Shangdijiayuan,Shangdi East Road, Haidian District,Beijing
Contact:+86-710-3516804
Address:Number 83,Panggong road,Xiangcheng District,Xiangyang ,Hubei
Doi:10.1021/ja00751a080
(1971)Doi:10.1007/s004250100601
(1937)Doi:10.1055/s-1972-21831
(1972)Doi:10.1021/jm00329a049
(1965)Doi:10.1002/hc.1037
(2001)Doi:10.1021/jo01064a076
(1961)
