Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Mercury photosensitisation

The mercury photosensitised decomposition of halogen compounds has been reviewed by Gunning and Strausz and early work was also summarised in a number of papers by Gunning et... [Pg.201]

The mercury-photosensitised reactions of fluoroalkenes have been discussed by Heicklen et and by Trobridge and Jennings . Other reports on... [Pg.202]

Mercury-photosensitised decompositions have been reported for fluorinated methanes , fluorinated ethanes , fluorinated ethylenes , perfluorocyclobu-tene and perfluorobuta-1,3-diene , chlorofluoromethane , dichloromethane (ref. 939), and octafluorobut-2-ene . Acetone has been used for sensitising the decomposition of 1,4-dichlorobutane , chlorobutenes , and allylic halides (the last to cyclopropyl halides) other studies have involved the use of hexafluoroacetone and benzene as sensitisers. [Pg.212]

Studies of the mercury-photosensitised decomposition of 2-azetidinone and 4,4-dimethyl-2-azetidinone have been described the major products in the latter case were carbon monoxide, 2-methylpropene and 2,2-dimethylaziridine. Examples of photo-chemically induced N-dealkylation have again been reported. [Pg.387]

A study has been made of mercury-photosensitised decompositions of vinyl fluoride, vinylidene fluoride, and cis- and rra/tr-l,2-difluoroethylene, which proceed by elimination of hydrogen fluoride via an excited molecule mechanism to produce the corresponding acetylenes cis r trans isomerisation... [Pg.45]

The mercury resonance line at X 2537 A, corresponding to the transition 6(3Pi) 6(1 So), has been used in most studies and monoisotopic photosensitisation has been specifically employed to examine the possible isotopic enrichment of the mercury compounds produced in these reactions. Thus, in the Hg monoisotopic photosensitised decomposition of methyl chloride " - the main products are methane, ethane, dichloroethane and hydrogen chloride together with calomel enriched with the ° Hg isotope. The following mechanism has been proposed " for the decomposition... [Pg.201]

Difluoromethyl radical has been produced using excited mercury atoms as photosensitisers (15), but so far this... [Pg.110]

See other pages where Mercury photosensitisation is mentioned: [Pg.193]    [Pg.205]    [Pg.77]    [Pg.77]    [Pg.46]    [Pg.193]    [Pg.205]    [Pg.77]    [Pg.77]    [Pg.46]    [Pg.530]    [Pg.324]   
See also in sourсe #XX -- [ Pg.5 , Pg.6 , Pg.7 , Pg.8 , Pg.9 , Pg.10 , Pg.11 , Pg.12 , Pg.13 , Pg.14 , Pg.15 , Pg.16 , Pg.17 , Pg.18 , Pg.233 ]

See also in sourсe #XX -- [ Pg.77 ]



SEARCH



Photosensitisation

Photosensitiser

Photosensitisers

© 2024 chempedia.info