METHOD FOR SEPARATING AND CLEANING UP POLYHALOGENATED BIPHENYLS
The method for separating and cleaning up polyhalogenated biphenyls (PHBs) is characterized by comprising the following three steps: (1) the step of bringing a sample containing PHBs into contact with a fibrous activated carbon; (2) the step of washing the fibrous activated carbon with hexanes; and (3) the step of eluting PHBs from the fibrous activated carbon.
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Page/Page column 20-26
(2008/06/13)
An unusual cyclization reaction in the chemistry of perchloroorganic compounds of silicon and germanium. Synthesis and crystal structure of perchloro(2,2'-biphenylene)diphenyl-silane and -germane
The reactions of SiCl4 and GeCl4 (or(PhCl)3SiCl and (PhCl)3GeCl where PhCl denotes Cl5C6) with PhClMgCl give perchloro(2,2'-biphenylene)diphenyl-silane (2) and -germane (3), respectively.The structure of both strained compounds have been determined by X-ray crystallography of their benzene solvates.The photobromination of germane 3 with Br2 results in cleavage of one germanium-biphenylene bond to give the highly crowded bromo(2-(2'-bromooctachlorobiphenyl))bis(pentachlorophenyl)germane (4).
Fajari, Lluis,Julia, Luis,Riera, Juan,Molins, Elies,Miravitlles, Carlos
p. 321 - 332
(2007/10/02)
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